Marry Mac
type: MusicGroup
popularity: 10
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6fff8806e688d4dfe790479fedb4543adcfe0209a228ad9eb85134e2e0aaa269
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ddf4552b-3d4f-4772-9953-6e5f951b98b2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ddf4552b-3d4f-4772-9953-6e5f951b98b2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ddf4552b-3d4f-4772-9953-6e5f951b98b2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6fff8806e688d4dfe790479fedb4543adcfe0209a228ad9eb85134e2e0aaa269","name":"Marry Mac","registered_at":"2026-06-21T05:41:16Z","symbol":"NIM1837095","token_address":"0xbc207f80c78c492e09ffceac9aea24d244a9c362","type":"artist","uuid":"ddf4552b-3d4f-4772-9953-6e5f951b98b2"}
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 0x6fff8806e688d4dfe790479fedb4543adcfe0209a228ad9eb85134e2e0aaa269. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ddf4552b-3d4f-4772-9953-6e5f951b98b2.json and https://artists.proofprofile.net/proofs/artist/ddf4552b-3d4f-4772-9953-6e5f951b98b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x6fff8806e688d4dfe790479fedb4543adcfe0209a228ad9eb85134e2e0aaa269","name":"Marry Mac","registered_at":"2026-06-21T05:41:16Z","symbol":"NIM1837095","token_address":"0xbc207f80c78c492e09ffceac9aea24d244a9c362","type":"artist","uuid":"ddf4552b-3d4f-4772-9953-6e5f951b98b2"}