Marie Espinosa
type: MusicGroup
popularity: 14
followers: 497
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c3144a54c62fe18dd2d3762670454b8c1cd8a0fc8f4b3028252858b06b6393b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953746
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953746
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a41b3dbe-892e-434d-9bd0-438cbd239d78.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a41b3dbe-892e-434d-9bd0-438cbd239d78.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a41b3dbe-892e-434d-9bd0-438cbd239d78
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T05:25:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9c3144a54c62fe18dd2d3762670454b8c1cd8a0fc8f4b3028252858b06b6393b","name":"Marie Espinosa","registered_at":"2026-06-14T21:42:22Z","symbol":"NIM0585124","token_address":"0x5e995beab91c41e4819d44c873a1d5ce837d8eab","type":"artist","uuid":"a41b3dbe-892e-434d-9bd0-438cbd239d78"}
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 0x9c3144a54c62fe18dd2d3762670454b8c1cd8a0fc8f4b3028252858b06b6393b. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a41b3dbe-892e-434d-9bd0-438cbd239d78.json and https://artists.proofprofile.net/proofs/artist/a41b3dbe-892e-434d-9bd0-438cbd239d78.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T05:25:34Z
  text: {"copyright_id":"0x9c3144a54c62fe18dd2d3762670454b8c1cd8a0fc8f4b3028252858b06b6393b","name":"Marie Espinosa","registered_at":"2026-06-14T21:42:22Z","symbol":"NIM0585124","token_address":"0x5e995beab91c41e4819d44c873a1d5ce837d8eab","type":"artist","uuid":"a41b3dbe-892e-434d-9bd0-438cbd239d78"}
album: La Démarrante
  type: MusicAlbum
  date published: 2009-01-01
album: La Démarrante
  type: MusicAlbum
  date published: 2009-10-16
album: La pleureuse
  type: MusicAlbum
  date published: 2025-10-03