Data on the chain: OP_RETURN, inscriptions and spam
Whether the chain should carry anything but payments, and what to do when it does. The OP_RETURN debates of 2014, the coloured coin and timestamping projects, and the inscriptions and filter arguments of 2023 onward are all the same argument in different clothes.
107 threads and 1,258 messages, 14 Jun 2011 to 4 Oct 2026.
Read on LearnBitcoin
The threads, in order
Listed by the date of each thread's first message.
2011 1 thread
- Question about dust spam rule Jan Vornberger1 message
2013 5 threads
- 4 messages
- On-going data spam Jeff Garzik15 messages
- 10 messages
- Missing fRelayTxes in version message Turkey Breast12 messages
- 1 message
2014 9 threads
- On OP_RETURN in upcoming 0.9 release Jeff Garzik19 messages
- On OP_RETURN in upcoming 0.9 Tamas Blummer2 messages
- BIP 70 and OP_RETURN Justus Ranvier4 messages
- Standardizing OP_RETURN message format Maciej Trebacz3 messages
- Feedback request: colored coins protocol Flavien Charlon16 messages
- Bug in 2-of-3 transaction signing in Bitcoind? Matt Whitlock10 messages
- Bug with handing of OP_RETURN? Flavien Charlon10 messages
- ECDH in the payment protocol Mike Hearn14 messages
- Increasing the OP_RETURN maximum payload size Flavien Charlon17 messages
2015 12 threads
- Proof of Payment Kalle Rosenbaum15 messages
- Reusable payment codes Justus Ranvier26 messages
- Max Block Size: Simple Voting Procedure Stephen Morse7 messages
- 9 messages
- Canonical input and output ordering in transactions Rusty Russell18 messages
- BIP for Proof of Payment Kalle Rosenbaum32 messages
- Bitcoin Core 0.11.0 released Wladimir J. van der Laan4 messages
- 68 messages
- 1 message
- Why Satoshi's temporary anti-spam measure isn't temporary Jean-Paul Kogelman1 message
- Key.run: BIP-70 Payments and OP_RETURN Toby Padilla1 message
- Standard BIP Draft: Turing Pseudo-Completeness Luke Durback10 messages
2016 3 threads
- Allow zero value OP_RETURN in Payment Protocol Toby Padilla24 messages
- 5 messages
- BIP Number Request: Open Asset Nicolas Dorier10 messages
2017 10 threads
- Mutli-push op_return Chris Pacia3 messages
- 4 messages
- 6 messages
- Extension block proposal by Jeffrey et al Luke Dashjr13 messages
- Transaction signalling Erik Aronesty7 messages
- Segwit v2 Luke Dashjr7 messages
- 25 messages
- 11 messages
- Minutia in CT for Bitcoin. Was: SF proposal: prohibit unspendable outputs with amount=0 Gregory Maxwell2 messages
- 3 messages
2018 3 threads
- Raise default datacarriersize to 220 byte or higher mbde@bitwatch.co2 messages
- Soft-forks and schnorr signature aggregation Anthony Towns8 messages
- Claiming an OP_RETURN Prefix Lautaro Dragan15 messages
2019 3 threads
- Pre BIP: Solving for spam and other abuse with an HTLB Alistair Mann6 messages
- 12 messages
- easypaysy - A layer-two protocol to send payments without addresses Jose Femenías Cañuelo6 messages
2020 1 thread
- MIN_STANDARD_TX_NONWITNESS_SIZE and OP_RETURN Thomas Voegtlin5 messages
2021 4 threads
- BIP - limiting OP_RETURN / HF Christopher Gilliard25 messages
- Motivating Address type for OP_RETURN Jeremy Rubin7 messages
- 3 messages
- Sending OP_RETURN via Bitcoin Lightning Héctor José Cárdenas Pacheco10 messages
2022 7 threads
- Draft-BIP: Ordinal Numbers Casey Rodarmor15 messages
- OP_RETURN inside TapScript vjudeu14 messages
- bitcoin scripting and lisp Anthony Towns6 messages
- 8 messages
- Private Payments Alfred Hodler12 messages
- How to do Proof of Micro-Burn? Велеслав7 messages
- 6 messages
2023 19 threads
- 2 messages
- Ordinal Inscription Size Limits Robert Dickinson22 messages
- Debate: 64 bytes in OP_RETURN VS taproot OP_FALSE OP_IF OP_PUSH Christopher Allen34 messages
- Purely off-chain coin colouring Anthony Towns12 messages
- 10 messages
- RGB protocol announcement Dr Maxim Orlovsky7 messages
- 25 messages
- 6 messages
- Standardisation of an unstructured taproot annex Joost Jager30 messages
- Concern about "Inscriptions". Léo Haf9 messages
- 2 messages
- Concern about "Inscriptions" GamedevAlice2 messages
- 1 message
- 4 messages
- Concern about "Inscriptions" martl.chris11 messages
- Ordinals BIP PR Casey Rodarmor22 messages
- ossification and misaligned incentive concerns Erik Aronesty8 messages
- 13 messages
- Addressing the possibility of profitable fee manipulation attacks ArmchairCryptologist4 messages
2024 4 threads
- BIP process friction Anthony Towns11 messages
- One-Shot Replace-By-Fee-Rate Peter Todd8 messages
- 10 messages
- 7 messages
2025 22 threads
- 3 messages
- P2QRH / BIP-360 Update Hunter Beast19 messages
- Proposal: Unlocking Dust UTXOs as Miner Transaction Fees Nighttime Satoshi6 messages
- Hashed keys are actually fully quantum secure Martin Habovštiak14 messages
- Relax OP_RETURN standardness restrictions Antoine Poinsot70 messages
- jpeg resistance of various post-quantum signature schemes Bas Westerbaan5 messages
- 8 messages
- 16 messages
- 17 messages
- Mempool Validation and Relay Policies via User-Defined Scripts] Andrew Poelstra6 messages
- On (in)ability to embed data into Schnorr waxwing/ AdamISZ19 messages
- Limit ScriptPubkey Size >= 520 Bytes Consensus. PortlandHODL46 messages
- op_return spam is beneficial Erik Aronesty2 messages
- Reduced Data Temporary Softfork dathonohm30 messages
- 11 messages
- segOP potential BIP discussion defenwycke3 messages
- 3 messages
- 17 messages
- Reducing RAM requirements with dynamic dust uuowwpevskfcordh5 messages
- 7 messages
- The Cat, BIP draft discussion. Bitcoin Mechanic20 messages
- Addressing remaining points on BIP 54 Antoine Poinsot15 messages
2026 4 threads
- Dust UTXO Disposal Protocol bubb1es8 messages
- 4 messages
- Giving teeth to expected EC disabling: P2XX(-T)(-ML) Pieter Wuille22 messages
- 5 messages