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Introduces a compact protocol for timestamping and attributing content references using OP_RETURN transactions. Supports: URL, Address, Content, Nostr, Git Commit, Document types. See: #5
- Type 0x04: Nostr Profile - raw 32-byte pubkey (no hashing) - Type 0x08: Nostr Event - raw 32-byte event id (no hashing) Nostr identifiers are already 32 bytes, so they're stored directly without SHA256 hashing unlike URL/Content types.
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Summary
Introduces the MRK protocol for on-chain content marking using OP_RETURN transactions.
Closes #5
Specification
MRK+ version + type + SHA256 hashMotivation
Marks provide the primitive for building reputation, attribution, and proof-of-existence systems on Bitmark.
Status
Draft - awaiting BIP number assignment.