Stubblefield & Hansen
type: MusicGroup
popularity: 8
followers: 98
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e23909dbcb083c055b22029d773f30f551e2796a3f49323983e3624f0a8bf60
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30a3fc3a-08cf-4f5e-ab53-c5b921a41b59.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30a3fc3a-08cf-4f5e-ab53-c5b921a41b59.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30a3fc3a-08cf-4f5e-ab53-c5b921a41b59
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5e23909dbcb083c055b22029d773f30f551e2796a3f49323983e3624f0a8bf60","name":"Stubblefield & Hansen","registered_at":"2026-06-16T06:48:08Z","symbol":"NIM0970851","token_address":"0xfd18409815fa5306a136d8e488dcd5eac0752a78","type":"artist","uuid":"30a3fc3a-08cf-4f5e-ab53-c5b921a41b59"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e23909dbcb083c055b22029d773f30f551e2796a3f49323983e3624f0a8bf60. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30a3fc3a-08cf-4f5e-ab53-c5b921a41b59.json and https://artists.proofprofile.net/proofs/artist/30a3fc3a-08cf-4f5e-ab53-c5b921a41b59.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x5e23909dbcb083c055b22029d773f30f551e2796a3f49323983e3624f0a8bf60","name":"Stubblefield & Hansen","registered_at":"2026-06-16T06:48:08Z","symbol":"NIM0970851","token_address":"0xfd18409815fa5306a136d8e488dcd5eac0752a78","type":"artist","uuid":"30a3fc3a-08cf-4f5e-ab53-c5b921a41b59"}
album: Guitar Duets Live, Vol. 1
  type: MusicAlbum
  date published: 2019-02-26
album: Michelle (Live)
  type: MusicAlbum
  date published: 2020-11-03