Caleb Hayashida
type: MusicGroup
genre: indie folk
popularity: 2
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbe7c2fc5fe6f9553effeb1aba2328d3adaf8dc49f6a2a247658aa689856f3cf7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953860
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953860
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/034cd50e-a952-41b1-be3d-48bbf581db99.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/034cd50e-a952-41b1-be3d-48bbf581db99.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/034cd50e-a952-41b1-be3d-48bbf581db99
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:55:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbe7c2fc5fe6f9553effeb1aba2328d3adaf8dc49f6a2a247658aa689856f3cf7","name":"Caleb Hayashida","registered_at":"2026-06-15T14:47:25Z","symbol":"NIM0741512","token_address":"0x778c86fe7649f4f047b977632f1b056bba0ee06c","type":"artist","uuid":"034cd50e-a952-41b1-be3d-48bbf581db99"}
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 0xbe7c2fc5fe6f9553effeb1aba2328d3adaf8dc49f6a2a247658aa689856f3cf7. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/034cd50e-a952-41b1-be3d-48bbf581db99.json and https://artists.proofprofile.net/proofs/artist/034cd50e-a952-41b1-be3d-48bbf581db99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xbe7c2fc5fe6f9553effeb1aba2328d3adaf8dc49f6a2a247658aa689856f3cf7","name":"Caleb Hayashida","registered_at":"2026-06-15T14:47:25Z","symbol":"NIM0741512","token_address":"0x778c86fe7649f4f047b977632f1b056bba0ee06c","type":"artist","uuid":"034cd50e-a952-41b1-be3d-48bbf581db99"}
album: A Tide Rising
  type: MusicAlbum
  date published: 2010-07-01
album: Somewhere Along the Way
  type: MusicAlbum
  date published: 2012-05-12
album: Phantastes
  type: MusicAlbum
  date published: 2016-11-19
album: Moby Dick or The Whale
  type: MusicAlbum
  date published: 2022-04-22