The Chatham Singers
type: MusicGroup
genre: garage rock
genre: spoken word
popularity: 10
followers: 2403
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x61183a3470714e7c7d3a4692205063d7e1e31543bc2035a66a7334fdfdb1a1d6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953871
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953871
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06c993c6-7e85-4655-b390-3ff3def1415d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/06c993c6-7e85-4655-b390-3ff3def1415d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/06c993c6-7e85-4655-b390-3ff3def1415d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:46:03Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x61183a3470714e7c7d3a4692205063d7e1e31543bc2035a66a7334fdfdb1a1d6","name":"The Chatham Singers","registered_at":"2026-06-15T16:07:07Z","symbol":"NIM0760548","token_address":"0x9bddee66227a804717b7df17e751e8c61cbc7ed7","type":"artist","uuid":"06c993c6-7e85-4655-b390-3ff3def1415d"}
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 0x61183a3470714e7c7d3a4692205063d7e1e31543bc2035a66a7334fdfdb1a1d6. 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/06c993c6-7e85-4655-b390-3ff3def1415d.json and https://artists.proofprofile.net/proofs/artist/06c993c6-7e85-4655-b390-3ff3def1415d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x61183a3470714e7c7d3a4692205063d7e1e31543bc2035a66a7334fdfdb1a1d6","name":"The Chatham Singers","registered_at":"2026-06-15T16:07:07Z","symbol":"NIM0760548","token_address":"0x9bddee66227a804717b7df17e751e8c61cbc7ed7","type":"artist","uuid":"06c993c6-7e85-4655-b390-3ff3def1415d"}
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