Martha and Coco
type: MusicGroup
popularity: 10
followers: 259
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea9e004e6052e284f682fa4c82d4712c897f6ea59b4967e4e404d25e8b88665d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4aac16e2-526b-4121-b1b6-42c5a10820ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4aac16e2-526b-4121-b1b6-42c5a10820ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4aac16e2-526b-4121-b1b6-42c5a10820ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xea9e004e6052e284f682fa4c82d4712c897f6ea59b4967e4e404d25e8b88665d","name":"Martha and Coco","registered_at":"2026-06-16T15:55:29Z","symbol":"NIM1101467","token_address":"0xe34c96a9bd485b30438ae83a8c300ae971c0ec31","type":"artist","uuid":"4aac16e2-526b-4121-b1b6-42c5a10820ad"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9e004e6052e284f682fa4c82d4712c897f6ea59b4967e4e404d25e8b88665d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4aac16e2-526b-4121-b1b6-42c5a10820ad.json and https://artists.proofprofile.net/proofs/artist/4aac16e2-526b-4121-b1b6-42c5a10820ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xea9e004e6052e284f682fa4c82d4712c897f6ea59b4967e4e404d25e8b88665d","name":"Martha and Coco","registered_at":"2026-06-16T15:55:29Z","symbol":"NIM1101467","token_address":"0xe34c96a9bd485b30438ae83a8c300ae971c0ec31","type":"artist","uuid":"4aac16e2-526b-4121-b1b6-42c5a10820ad"}
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