Leo Polanco
type: MusicGroup
genre: quiet storm
popularity: 13
followers: 71
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb2859825846eee13476b9ea43ea1fdcff1f701d995fa2c2eac6ca12dafacc684
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953617
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953617
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cfda281-d013-4d2f-91d7-c4a7a88a0fbc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1cfda281-d013-4d2f-91d7-c4a7a88a0fbc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1cfda281-d013-4d2f-91d7-c4a7a88a0fbc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:00:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb2859825846eee13476b9ea43ea1fdcff1f701d995fa2c2eac6ca12dafacc684","name":"Leo Polanco","registered_at":"2026-06-14T07:26:23Z","symbol":"NIM0380964","token_address":"0x0c8675de3608a5d0a067fd9b36fdc975d866f8fb","type":"artist","uuid":"1cfda281-d013-4d2f-91d7-c4a7a88a0fbc"}
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 0xb2859825846eee13476b9ea43ea1fdcff1f701d995fa2c2eac6ca12dafacc684. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cfda281-d013-4d2f-91d7-c4a7a88a0fbc.json and https://artists.proofprofile.net/proofs/artist/1cfda281-d013-4d2f-91d7-c4a7a88a0fbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:00:45Z
  text: {"copyright_id":"0xb2859825846eee13476b9ea43ea1fdcff1f701d995fa2c2eac6ca12dafacc684","name":"Leo Polanco","registered_at":"2026-06-14T07:26:23Z","symbol":"NIM0380964","token_address":"0x0c8675de3608a5d0a067fd9b36fdc975d866f8fb","type":"artist","uuid":"1cfda281-d013-4d2f-91d7-c4a7a88a0fbc"}
album: Mentirosa
  type: MusicAlbum
  date published: 2023-12-09
album: Dime Corazon
  type: MusicAlbum
  date published: 2024-08-20
album: Ya No Te Quiero
  type: MusicAlbum
  date published: 2025-04-20
album: Esclavo Y Amo
  type: MusicAlbum
  date published: 2025-04-20