Sam Hurwitz
type: MusicGroup
genre: americana
popularity: 3
followers: 172
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56905b1440f9db007e28a2a70ce3b04e78c2aba8fe00704873ea4dcca321839a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3584af7-c244-4cc4-bade-fe2062d1f0aa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f3584af7-c244-4cc4-bade-fe2062d1f0aa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f3584af7-c244-4cc4-bade-fe2062d1f0aa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x56905b1440f9db007e28a2a70ce3b04e78c2aba8fe00704873ea4dcca321839a","name":"Sam Hurwitz","registered_at":"2026-06-21T14:12:40Z","symbol":"NIM1943547","token_address":"0x9ec00963f8f8e239034aca12e78171c96f384677","type":"artist","uuid":"f3584af7-c244-4cc4-bade-fe2062d1f0aa"}
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 0x56905b1440f9db007e28a2a70ce3b04e78c2aba8fe00704873ea4dcca321839a. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3584af7-c244-4cc4-bade-fe2062d1f0aa.json and https://artists.proofprofile.net/proofs/artist/f3584af7-c244-4cc4-bade-fe2062d1f0aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0x56905b1440f9db007e28a2a70ce3b04e78c2aba8fe00704873ea4dcca321839a","name":"Sam Hurwitz","registered_at":"2026-06-21T14:12:40Z","symbol":"NIM1943547","token_address":"0x9ec00963f8f8e239034aca12e78171c96f384677","type":"artist","uuid":"f3584af7-c244-4cc4-bade-fe2062d1f0aa"}
album: Anaranjado
  type: MusicAlbum
  date published: 2019-11-09
album: Forests on Antarctica
  type: MusicAlbum
  date published: 2020-04-17
album: Wave
  type: MusicAlbum
  date published: 2020-10-23
album: I Drowned & I Woke Up
  type: MusicAlbum
  date published: 2021-08-15
album: NVW (But I Feel Wrong)
  type: MusicAlbum
  date published: 2023-04-14
album: The Optimist
  type: MusicAlbum
  date published: 2023-04-21
album: Horizon
  type: MusicAlbum
  date published: 2025-03-21