Niño Calavera
type: MusicGroup
genre: post-grunge
popularity: 3
followers: 405
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbf319b55f13616cbbc9e9a443c4bda1448ee24f051c48935259f2428cf80580a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953852
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953852
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0272d50a-e6ff-4e67-a51a-f14e976dd89b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0272d50a-e6ff-4e67-a51a-f14e976dd89b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0272d50a-e6ff-4e67-a51a-f14e976dd89b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:13:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbf319b55f13616cbbc9e9a443c4bda1448ee24f051c48935259f2428cf80580a","name":"Niño Calavera","registered_at":"2026-06-15T14:18:34Z","symbol":"NIM0734629","token_address":"0xd9a32d8ccd31790ddb074d1a397a645e1ad1efcc","type":"artist","uuid":"0272d50a-e6ff-4e67-a51a-f14e976dd89b"}
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 0xbf319b55f13616cbbc9e9a443c4bda1448ee24f051c48935259f2428cf80580a. Chain 2 (Bitcoin): anchored in block 953852 (2026-06-15T23:13:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0272d50a-e6ff-4e67-a51a-f14e976dd89b.json and https://artists.proofprofile.net/proofs/artist/0272d50a-e6ff-4e67-a51a-f14e976dd89b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T23:13:02Z
  text: {"copyright_id":"0xbf319b55f13616cbbc9e9a443c4bda1448ee24f051c48935259f2428cf80580a","name":"Niño Calavera","registered_at":"2026-06-15T14:18:34Z","symbol":"NIM0734629","token_address":"0xd9a32d8ccd31790ddb074d1a397a645e1ad1efcc","type":"artist","uuid":"0272d50a-e6ff-4e67-a51a-f14e976dd89b"}
album: En la Oscuridad
  type: MusicAlbum
  date published: 2015-01-19
album: La Bala Perdida
  type: MusicAlbum
  date published: 2016-12-29
album: Lejos del Camino
  type: MusicAlbum
  date published: 2020-03-09
album: Hijos del Fuego
  type: MusicAlbum
  date published: 2023-05-12