Ryan Sandholm
type: MusicGroup
popularity: 2
followers: 48
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9608e4212ade8aafa9f4f4542e1b3545f7ae25eabfe9598d41b1f19c3b909a4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954130
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954130
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cb17042-a3fe-4315-badb-bac353ea4853.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7cb17042-a3fe-4315-badb-bac353ea4853.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7cb17042-a3fe-4315-badb-bac353ea4853
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:07:14Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9608e4212ade8aafa9f4f4542e1b3545f7ae25eabfe9598d41b1f19c3b909a4","name":"Ryan Sandholm","registered_at":"2026-06-17T09:03:02Z","symbol":"NIM1346593","token_address":"0x4a4fdd7a3adef29605fd27f3ad0f329ea41fba98","type":"artist","uuid":"7cb17042-a3fe-4315-badb-bac353ea4853"}
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 0xc9608e4212ade8aafa9f4f4542e1b3545f7ae25eabfe9598d41b1f19c3b909a4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7cb17042-a3fe-4315-badb-bac353ea4853.json and https://artists.proofprofile.net/proofs/artist/7cb17042-a3fe-4315-badb-bac353ea4853.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:07:14Z
  text: {"copyright_id":"0xc9608e4212ade8aafa9f4f4542e1b3545f7ae25eabfe9598d41b1f19c3b909a4","name":"Ryan Sandholm","registered_at":"2026-06-17T09:03:02Z","symbol":"NIM1346593","token_address":"0x4a4fdd7a3adef29605fd27f3ad0f329ea41fba98","type":"artist","uuid":"7cb17042-a3fe-4315-badb-bac353ea4853"}
album: Color Blue
  type: MusicAlbum
  date published: 2022-08-20
album: Goldmine
  type: MusicAlbum
  date published: 2022-08-20
album: Wishes
  type: MusicAlbum
  date published: 2022-08-20
album: Just When I'm Over You
  type: MusicAlbum
  date published: 2024-03-16
album: Stopped Falling
  type: MusicAlbum
  date published: 2024-08-30
album: Brighter with You
  type: MusicAlbum
  date published: 2024-12-01
album: Try Me Anyway
  type: MusicAlbum
  date published: 2025-05-09