Isaac Hays
type: MusicGroup
description: Isaac Hays (July 5, 1796 – April 12, 1879) was an American ophthalmologist, medical ethicist, and naturalist. A founding member of the American Medical Association, and the first president of the Phi
popularity: 3
followers: 134
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfc3b471e574566afecd9ef60c09da9e2f19d5b234ea4988812d50998e28e4531
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/b728adb7-f483-4504-9a41-b641d092e93a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b728adb7-f483-4504-9a41-b641d092e93a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b728adb7-f483-4504-9a41-b641d092e93a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfc3b471e574566afecd9ef60c09da9e2f19d5b234ea4988812d50998e28e4531","name":"Isaac Hays","registered_at":"2026-06-20T15:34:19Z","symbol":"NIM1642381","token_address":"0x9ec5f8e7c47708030224ebf2c7c73d0e6a74be1c","type":"artist","uuid":"b728adb7-f483-4504-9a41-b641d092e93a"}
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 0xfc3b471e574566afecd9ef60c09da9e2f19d5b234ea4988812d50998e28e4531. 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/b728adb7-f483-4504-9a41-b641d092e93a.json and https://artists.proofprofile.net/proofs/artist/b728adb7-f483-4504-9a41-b641d092e93a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xfc3b471e574566afecd9ef60c09da9e2f19d5b234ea4988812d50998e28e4531","name":"Isaac Hays","registered_at":"2026-06-20T15:34:19Z","symbol":"NIM1642381","token_address":"0x9ec5f8e7c47708030224ebf2c7c73d0e6a74be1c","type":"artist","uuid":"b728adb7-f483-4504-9a41-b641d092e93a"}
album: Mi Herencia
  type: MusicAlbum
  date published: 2010-03-15
album: Las Crónicas
  type: MusicAlbum
  date published: 2021-10-20
album: Broken Paradigm
  type: MusicAlbum
  date published: 2021-10-21