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Unbreaking testnet4

32 replies

By Antoine Poinsot

Involving Saint Wenhao, Garlo Nicon+9 others

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Original post on March 18, 2025 14:29 UTC

cyclic icon

Last reply on July 5, 2025 04:31 UTC

bitcoin-dev

  • Testnet4 aimed to improve on Testnet3 but retained a problematic difficulty reset rule.

  • A proposed solution involves removing this rule through a hard fork on January 1, 2026.

  • This change seeks to balance operational realism with developer accessibility in testing.

Re: The Cat, BIP draft discussion.

14 replies

By Bitcoin Mechanic

Involving Greg Maxwell, Jonathan Voss+8 others

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Original post on December 11, 2025 20:54 UTC

cyclic icon

Last reply on December 24, 2025 17:19 UTC

bitcoin-dev

  • The email discusses implementing "The Cat" to delete spammy UTXOs in Bitcoin.

  • Critics question the impact on Bitcoin's decentralization and censorship resistance.

  • The author supports "The Cat" for efficiency, acknowledging philosophical concerns.

BIP idea: Timelock-Recovery storage format

By Oren

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Original post on December 28, 2025 14:21 UTC

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Last reply on December 28, 2025 14:21 UTC

bitcoin-dev

  • Oren proposes a Bitcoin Improvement Proposal focusing on Timelock-Recovery after BTC++ Taiwan talks.

  • The proposal introduces pre-signed transactions for enhanced security and inheritance handling in Bitcoin storage.

  • It also highlights the Timelock Recovery plugin for Electrum, aiming for standardized transaction formats.

P2share: how to turn any network (or testnet!) into a bitcoin miner

24 replies

By VzxPLnHqr

Involving cmp_ancp, ZmnSCPxj+3 others

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Original post on November 7, 2025 01:06 UTC

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Last reply on December 28, 2025 05:09 UTC

delvingbitcoin

  • The p2share network introduces an innovative bitcoin mining rewards distribution system using shares.

  • Rewards are awarded to one shareholder via a random selection, ensuring fairness and efficiency.

  • This model fosters a decentralized mining ecosystem, potentially impacting future blockchain developments.

Understanding and Mitigating a OP_CTV Footgun: The Unsatisfiable UTXO

18 replies

By Chris_Stewart_5

Involving 1440000bytes, salvatoshi+8 others

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Original post on July 3, 2025 20:09 UTC

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Last reply on December 30, 2025 19:06 UTC

delvingbitcoin

  • The introduction of `OP_CTV` in BIP119 emphasizes safe transaction input management.

  • Using multiple inputs in `OP_CTV` templates can prevent creating unspendable UTXOs.

  • Ongoing research explores `OP_CTV` integration for secure, efficient Bitcoin transactions.

OP_CC: A simple introspection opcode to enable cheaper consolidations

10 replies

By billymcbip

Involving reardencode, sipa+2 others

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Original post on December 30, 2025 12:53 UTC

cyclic icon

Last reply on December 31, 2025 23:01 UTC

delvingbitcoin

  • The **OP_CHECKCONSOLIDATION (OP_CC)** opcode aims to make Bitcoin UTXO consolidations more space-efficient.

  • It allows subsequent inputs from the same scriptPubKey to bypass individual signatures after the first.

  • This method could significantly reduce blockchain data needs, enhancing transaction efficiency and scaling.

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