Southwestern A Cappella
type: MusicGroup
popularity: 3
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc61fb68dbb46cb303125306a1418df9fe8ce0af704e1c4c3fac9235fad6aba58
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1423a107-6da0-4347-9296-00c9a908e07a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1423a107-6da0-4347-9296-00c9a908e07a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1423a107-6da0-4347-9296-00c9a908e07a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc61fb68dbb46cb303125306a1418df9fe8ce0af704e1c4c3fac9235fad6aba58","name":"Southwestern A Cappella","registered_at":"2026-06-15T20:34:44Z","symbol":"NIM0824397","token_address":"0x2275175fd71aa1151caa5da32e1688daab1018dd","type":"artist","uuid":"1423a107-6da0-4347-9296-00c9a908e07a"}
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 0xc61fb68dbb46cb303125306a1418df9fe8ce0af704e1c4c3fac9235fad6aba58. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1423a107-6da0-4347-9296-00c9a908e07a.json and https://artists.proofprofile.net/proofs/artist/1423a107-6da0-4347-9296-00c9a908e07a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xc61fb68dbb46cb303125306a1418df9fe8ce0af704e1c4c3fac9235fad6aba58","name":"Southwestern A Cappella","registered_at":"2026-06-15T20:34:44Z","symbol":"NIM0824397","token_address":"0x2275175fd71aa1151caa5da32e1688daab1018dd","type":"artist","uuid":"1423a107-6da0-4347-9296-00c9a908e07a"}
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