Cangrejo
type: MusicGroup
description: REDIRECTBoston crab
popularity: 3
followers: 665
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56e4afcc4f664a03aee7549ffd92b8a7cf1b3f69aaca40529a58cfa81b8dff53
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea3233b5-b33c-4a75-9598-859b680ae339.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea3233b5-b33c-4a75-9598-859b680ae339.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea3233b5-b33c-4a75-9598-859b680ae339
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0x56e4afcc4f664a03aee7549ffd92b8a7cf1b3f69aaca40529a58cfa81b8dff53. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea3233b5-b33c-4a75-9598-859b680ae339.json and https://artists.proofprofile.net/proofs/artist/ea3233b5-b33c-4a75-9598-859b680ae339.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Colcha
  type: MusicAlbum
  date published: 2008-11-11
album: De Viaje: Auf der Reise
  type: MusicAlbum
  date published: 2015-10-23
album: Llegar
  type: MusicAlbum
  date published: 2017-10-13
album: Laberinto
  type: MusicAlbum
  date published: 2019-10-25
album: Constelación
  type: MusicAlbum
  date published: 2019-12-06
album: Andar
  type: MusicAlbum
  date published: 2020-02-08
album: Sol
  type: MusicAlbum
  date published: 2021-11-12
album: I Wish You Were Here
  type: MusicAlbum
  date published: 2023-02-24
album: Continuando
  type: MusicAlbum
  date published: 2023-04-28
album: Vapor
  type: MusicAlbum
  date published: 2023-05-26
  track: Vapor
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165475
    explicit: false
    by artist: Cangrejo
    in album: Vapor
      type: MusicAlbum
      date published: 2023-05-26
    isrc code: USHM22315690
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T13:39:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x75146b04d379266cd9f448d5674e964b26e4a021471f2b35e9e062bcee8be69c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958742
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958742
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22315690
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:42:25Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75146b04d379266cd9f448d5674e964b26e4a021471f2b35e9e062bcee8be69c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:42:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22315690.
      date published: 2026-07-19T16:42:25Z
    audio: Vapor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.987
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.743
      additional property: Energy
        type: PropertyValue
        value: 0.519
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0.369
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.198
      additional property: Liveness
        type: PropertyValue
        value: 0.211
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.725
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.197
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Arre
  type: MusicAlbum
  date published: 2023-06-24
album: Disfraz
  type: MusicAlbum
  date published: 2023-07-29
album: Guitarritas
  type: MusicAlbum
  date published: 2023-09-08