Jacob Rubin
type: MusicGroup
popularity: 2
followers: 114
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67db27de55d18fc5bc7d325997335b4f13dd08aff3f349cdbef23d87c94d419c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954125
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954125
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ac390a4-2520-4cf8-8317-42fbadbd6024.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ac390a4-2520-4cf8-8317-42fbadbd6024.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7ac390a4-2520-4cf8-8317-42fbadbd6024
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:27:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x67db27de55d18fc5bc7d325997335b4f13dd08aff3f349cdbef23d87c94d419c","name":"Jacob Rubin","registered_at":"2026-06-17T08:48:14Z","symbol":"NIM1343061","token_address":"0x55f814ed43de757a9ced87f152b8c8eac4c8557b","type":"artist","uuid":"7ac390a4-2520-4cf8-8317-42fbadbd6024"}
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 0x67db27de55d18fc5bc7d325997335b4f13dd08aff3f349cdbef23d87c94d419c. Chain 2 (Bitcoin): anchored in block 954125 (2026-06-17T18:27:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ac390a4-2520-4cf8-8317-42fbadbd6024.json and https://artists.proofprofile.net/proofs/artist/7ac390a4-2520-4cf8-8317-42fbadbd6024.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T18:27:28Z
  text: {"copyright_id":"0x67db27de55d18fc5bc7d325997335b4f13dd08aff3f349cdbef23d87c94d419c","name":"Jacob Rubin","registered_at":"2026-06-17T08:48:14Z","symbol":"NIM1343061","token_address":"0x55f814ed43de757a9ced87f152b8c8eac4c8557b","type":"artist","uuid":"7ac390a4-2520-4cf8-8317-42fbadbd6024"}
album: The Musical Alphabet: A to G
  type: MusicAlbum
  date published: 2020-07-17
album: The Cars in My Mind
  type: MusicAlbum
  date published: 2023-11-08
album: Busy Living
  type: MusicAlbum
  date published: 2024-10-18