Matt Chandler
type: MusicGroup
popularity: 4
followers: 616
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x65a9dd69392d652796b56055f7460332701ccd52f97a2ec2e43bd2edd7cba650
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/49b0a453-70be-4111-94aa-66d2d30b8f95.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/49b0a453-70be-4111-94aa-66d2d30b8f95.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/49b0a453-70be-4111-94aa-66d2d30b8f95
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x65a9dd69392d652796b56055f7460332701ccd52f97a2ec2e43bd2edd7cba650","name":"Matt Chandler","registered_at":"2026-06-16T15:13:28Z","symbol":"NIM1091438","token_address":"0x6809e1d711154a4806b1e77fd90a4514a074baf3","type":"artist","uuid":"49b0a453-70be-4111-94aa-66d2d30b8f95"}
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 0x65a9dd69392d652796b56055f7460332701ccd52f97a2ec2e43bd2edd7cba650. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49b0a453-70be-4111-94aa-66d2d30b8f95.json and https://artists.proofprofile.net/proofs/artist/49b0a453-70be-4111-94aa-66d2d30b8f95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x65a9dd69392d652796b56055f7460332701ccd52f97a2ec2e43bd2edd7cba650","name":"Matt Chandler","registered_at":"2026-06-16T15:13:28Z","symbol":"NIM1091438","token_address":"0x6809e1d711154a4806b1e77fd90a4514a074baf3","type":"artist","uuid":"49b0a453-70be-4111-94aa-66d2d30b8f95"}
album: After Midnight
  type: MusicAlbum
  date published: 2009-11-09
album: Astrometrics
  type: MusicAlbum
  date published: 2017-04-16
album: Groovy Jazz Funk
  type: MusicAlbum
  date published: 2022-04-09