# Blockchain Architecture **URL:** https://talk.neptune.cash/c/blockchain-architecture/5.md [Latest](https://talk.neptune.cash/latest.md) · [Categories](https://talk.neptune.cash/categories.md) · [Tags](https://talk.neptune.cash/tags.md) --- ## [About the Blockchain Architecture category](https://talk.neptune.cash/t/about-the-blockchain-architecture-category/17)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:01pm UTC](https://talk.neptune.cash/t/about-the-blockchain-architecture-category/17 "2025-04-05T20:01:37Z")
Questions and thought related to blockchain architecture. This category is dedicated to discussions and insights on blockchain architecture. It serves as a platform for exploring design principles, innovations, and tech… --- ## [Block time: constraints on lowering it](https://talk.neptune.cash/t/block-time-constraints-on-lowering-it/359)
**Author:** [@LostInTranslation](https://talk.neptune.cash/u/LostInTranslation)\ **Replies:** 3\ **Last updated:** [July 31, 2026, 8:16am UTC](https://talk.neptune.cash/t/block-time-constraints-on-lowering-it/359 "2026-07-31T08:16:27Z")
There was some good discussion in Telegram recently about Neptune Cash’s block time and whether it could be adjusted. Thorkil suggested bringing it to the forum, and I couldn’t find an existing thread on the topic, so he… --- ## [How to make the coinbase UTXO(s) spendable by the guesser](https://talk.neptune.cash/t/how-to-make-the-coinbase-utxo-s-spendable-by-the-guesser/348)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 2\ **Last updated:** [July 17, 2026, 12:29pm UTC](https://talk.neptune.cash/t/how-to-make-the-coinbase-utxo-s-spendable-by-the-guesser/348 "2026-07-17T12:29:17Z")
This idea came out of a discussion with Thorkil. Under normal circumstances, the Guesser only gets access to the Guesser UTXOs. It turns out that the Composer can produce a block proposal whose coinbase UTXOs are spenda… --- ## [Transaction Chaining in Neptune Cash](https://talk.neptune.cash/t/transaction-chaining-in-neptune-cash/349)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [July 16, 2026, 7:27pm UTC](https://talk.neptune.cash/t/transaction-chaining-in-neptune-cash/349 "2026-07-16T19:27:04Z")
Transaction chaining refers to the process of merging transactions that have a predecessor-successor relationship, meaning that some of the outputs of the predecessor are being spent as inputs by the successor. Cut-throu… --- ## [Thoughts on the Mempool Issue and Upgrading](https://talk.neptune.cash/t/thoughts-on-the-mempool-issue-and-upgrading/52)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 26\ **Last updated:** [June 8, 2026, 4:28pm UTC](https://talk.neptune.cash/t/thoughts-on-the-mempool-issue-and-upgrading/52 "2026-06-08T16:28:47Z")
Getting a transaction confirmed in Neptune Cash right now is hard. Broadcasting a ProofCollection-backed transaction is easy enough, and you will probably be able to see it land in the mempool. If you are lucky someone e… --- ## [redemption issue](https://talk.neptune.cash/t/redemption-issue/298)
**Author:** [@Mezh](https://talk.neptune.cash/u/Mezh)\ **Replies:** 1\ **Last updated:** [May 25, 2026, 3:13pm UTC](https://talk.neptune.cash/t/redemption-issue/298 "2026-05-25T15:13:35Z")
Hi, I’m trying to do UTXO redemption. I built neptune-legacy, restored my wallet from seed phrase, and downloaded legacy-blocks.tar from claims.neptune.cash — but it only contains 179 block files (up to blk178.dat), enou… --- ## [Proposal: Transaction Chaining in Neptune Cash](https://talk.neptune.cash/t/proposal-transaction-chaining-in-neptune-cash/207)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 1\ **Last updated:** [December 26, 2025, 7:20pm UTC](https://talk.neptune.cash/t/proposal-transaction-chaining-in-neptune-cash/207 "2025-12-26T19:20:38Z")
Proposal: Transaction Chaining in Neptune Cash This post outlines a proposal for introducing transaction chaining into Neptune Cash. The idea is to enable one transaction to immediately spend the outputs of another uncon… --- ## [What's doing the 3 years lock if it's not a type script?](https://talk.neptune.cash/t/whats-doing-the-3-years-lock-if-its-not-a-type-script/158)
**Author:** [@skaunov](https://talk.neptune.cash/u/skaunov)\ **Replies:** 10\ **Last updated:** [December 1, 2025, 3:22am UTC](https://talk.neptune.cash/t/whats-doing-the-3-years-lock-if-its-not-a-type-script/158 "2025-12-01T03:22:18Z")
I’m trying to understand what implements that time vesting of the subsidies (the coin type script kinda says it has no height locking)? P.s. Chances are somebody already answered this but I missed it — could you paste t… --- ## [A blockchain's hierarchy of needs](https://talk.neptune.cash/t/a-blockchains-hierarchy-of-needs/177)
**Author:** [@sword-smith](https://talk.neptune.cash/u/sword-smith)\ **Replies:** 1\ **Last updated:** [November 19, 2025, 10:48am UTC](https://talk.neptune.cash/t/a-blockchains-hierarchy-of-needs/177 "2025-11-19T10:48:18Z")
Economists have made lists of requirements that money in general needs to have, like durability, scarcity, portability etc. Since blockchains are data and not physical objects, some of these qualities, like durability an… --- ## [Academic Papers on “Work Shares” and Advanced PoW (Dr. Karl Kreder)](https://talk.neptune.cash/t/academic-papers-on-work-shares-and-advanced-pow-dr-karl-kreder/176)
**Author:** [@danda](https://talk.neptune.cash/u/danda)\ **Replies:** 0\ **Last updated:** [November 17, 2025, 8:36pm UTC](https://talk.neptune.cash/t/academic-papers-on-work-shares-and-advanced-pow-dr-karl-kreder/176 "2025-11-17T20:36:46Z")
There’s been discussion recently about the vulnerabilities of traditional Proof-of-Work, especially regarding selfish mining (like the Qubic attack) and the centralization caused by mining pools. I’ve begun looking into… --- ## [Work shares as a solution for concentrated hash-power](https://talk.neptune.cash/t/work-shares-as-a-solution-for-concentrated-hash-power/169)
**Author:** [@danda](https://talk.neptune.cash/u/danda)\ **Replies:** 0\ **Last updated:** [November 15, 2025, 7:47am UTC](https://talk.neptune.cash/t/work-shares-as-a-solution-for-concentrated-hash-power/169 "2025-11-15T07:47:11Z")
I would suggest that anyone concerned about hashpower concentration in pools listen to this episode of monerotalk, an interview with POW researcher “Dr. K” that presents the concept of work-shares, sort of an improved p2… --- ## [Mechanics of Mining Rewards](https://talk.neptune.cash/t/mechanics-of-mining-rewards/29)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 9:51pm UTC](https://talk.neptune.cash/t/mechanics-of-mining-rewards/29 "2025-04-05T21:51:53Z")
This note was originally published 2024-07-21 at https://neptune.cash/blog/mechanics-of-mining-rewards/. Fig.1.: Mechanics of mining reward distribution. Imagination by Perchance. Mechanics of Mining Rewards The dis… --- ## [Why Not Build On Bitcoin?](https://talk.neptune.cash/t/why-not-build-on-bitcoin/28)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 9:34pm UTC](https://talk.neptune.cash/t/why-not-build-on-bitcoin/28 "2025-04-05T21:34:17Z")
This note was originally published on 2023-03-16 at https://neptune.cash/blog/why-not-build-on-bitcoin/. Why Not Build on Bitcoin? Why are we launching a new layer-1 instead of building on top of Bitcoin or integrating … --- ## [How Neptune Fixes Ethereum's Frontrunning Problem](https://talk.neptune.cash/t/how-neptune-fixes-ethereums-frontrunning-problem/27)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 9:27pm UTC](https://talk.neptune.cash/t/how-neptune-fixes-ethereums-frontrunning-problem/27 "2025-04-05T21:27:52Z")
This note was originally published on 2023-12-03 at https://neptune.cash/blog/how-neptune-fixes-ethereums-frontrunning-problem/. How Neptune Fixes Ethereum’s Frontrunning Problem Frontrunning refers to the practice of b… --- ## [Mutator Sets and their Application to Scalable Privacy](https://talk.neptune.cash/t/mutator-sets-and-their-application-to-scalable-privacy/26)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 9:20pm UTC](https://talk.neptune.cash/t/mutator-sets-and-their-application-to-scalable-privacy/26 "2025-04-05T21:20:32Z")
This note originally appeared on 2023-08-10 at https://neptune.cash/blog/mutator-sets/. Mutator Sets A mutator set is a cryptographically authenticated data structure used to effect privacy in a scalable way. For a comp… --- ## [Post-Quantum Security at Genesis](https://talk.neptune.cash/t/post-quantum-security-at-genesis/25)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:55pm UTC](https://talk.neptune.cash/t/post-quantum-security-at-genesis/25 "2025-04-05T20:55:52Z")
Note: this note originally appeared on 2023-02-16 at https://neptune.cash/blog/post-quantum-security-at-genesis/. You Cannot Fix Quantum Insecurity with an Upgrade You need post-quantum security at genesis. Introductio… --- ## [The Problem of Scalable Privacy](https://talk.neptune.cash/t/the-problem-of-scalable-privacy/24)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:54pm UTC](https://talk.neptune.cash/t/the-problem-of-scalable-privacy/24 "2025-04-05T20:54:01Z")
This note originally appeared on 2022-08-11 at https://neptune.cash/blog/scalable-privacy-problem/. The Problem of Scalable Privacy Existing privacycoins do not scale. Neptune does. This note explains why. Introduction … --- ## [Neptune and Post-Quantum Security](https://talk.neptune.cash/t/neptune-and-post-quantum-security/23)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:50pm UTC](https://talk.neptune.cash/t/neptune-and-post-quantum-security/23 "2025-04-05T20:50:27Z")
This note was originally published on 2022-07-01 at https://neptune.cash/blog/post-quantum/. Neptune and Post-Quantum Security Neptune claims to offer post-quantum security. But quantum computers don’t exist yet, at lea… --- ## [Tokenomics in Neptune Cash](https://talk.neptune.cash/t/tokenomics-in-neptune-cash/22)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:43pm UTC](https://talk.neptune.cash/t/tokenomics-in-neptune-cash/22 "2025-04-05T20:43:55Z")
This note originally appeared on 2022-06-26 at https://neptune.cash/blog/tokenomics/. Neptune Tokenomics The token economics (tokenomics) of Neptune are similar to those of Bitcoin, but there are some important differen… --- ## [Paper Wallets in Neptune Cash](https://talk.neptune.cash/t/paper-wallets-in-neptune-cash/21)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:41pm UTC](https://talk.neptune.cash/t/paper-wallets-in-neptune-cash/21 "2025-04-05T20:41:33Z")
This article originally appeared on 2022-06-02 at https://neptune.cash/blog/paper-wallets/. One of the most compelling use cases of cryptocurrencies is the ability to send some to a new address whose corresponding secre… --- ## [UTXO Types and the Data Availability Problem](https://talk.neptune.cash/t/utxo-types-and-the-data-availability-problem/20)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:39pm UTC](https://talk.neptune.cash/t/utxo-types-and-the-data-availability-problem/20 "2025-04-05T20:39:25Z")
This article originally appeared 2022-05-07 on https://neptune.cash/blog/data-availability/. UTXO Types and the Data Availability Problem Scalability and smart contracts are fundamentally at odds with each other. This n… --- ## [Storage Requirements and Node Types in the Neptune Protocol](https://talk.neptune.cash/t/storage-requirements-and-node-types-in-the-neptune-protocol/18)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:21pm UTC](https://talk.neptune.cash/t/storage-requirements-and-node-types-in-the-neptune-protocol/18 "2025-04-05T20:21:14Z")
This article originally appeared on 2022-03-08 at https://neptune.cash/blog/storage-node-types/. Storage Requirements and Node Types in the Neptune Protocol The Neptune White Paper makes, among many others, two statemen… --- ## [Proof-of-Stake is not Objective](https://talk.neptune.cash/t/proof-of-stake-is-not-objective/19)
**Author:** [@aszepieniec](https://talk.neptune.cash/u/aszepieniec)\ **Replies:** 0\ **Last updated:** [April 5, 2025, 8:32pm UTC](https://talk.neptune.cash/t/proof-of-stake-is-not-objective/19 "2025-04-05T20:32:54Z")
Note: this article originally appeared on 2022-05-20 at https://neptune.cash/blog/proof-of-stake-is-not-objective/ Proof-of-Stake is not Objective Proof-of-Stake is a proposed alternative consensus mechanism to proof-of…