Cesar Ulises Castellanos Perez
type: MusicGroup
genre: mexican rock
popularity: 4
followers: 26
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaee0197de5c64d4856eb7eb587342344c440532634e5274f243302a2c706daf9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aabc1b3a-ae8c-4fe2-be9f-1cb7e1d303fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/aabc1b3a-ae8c-4fe2-be9f-1cb7e1d303fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/aabc1b3a-ae8c-4fe2-be9f-1cb7e1d303fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaee0197de5c64d4856eb7eb587342344c440532634e5274f243302a2c706daf9","name":"Cesar Ulises Castellanos Perez","registered_at":"2026-06-20T09:28:06Z","symbol":"NIM1579869","token_address":"0x185add4d77a7832c97aaea97e678abade6650198","type":"artist","uuid":"aabc1b3a-ae8c-4fe2-be9f-1cb7e1d303fc"}
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 0xaee0197de5c64d4856eb7eb587342344c440532634e5274f243302a2c706daf9. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/aabc1b3a-ae8c-4fe2-be9f-1cb7e1d303fc.json and https://artists.proofprofile.net/proofs/artist/aabc1b3a-ae8c-4fe2-be9f-1cb7e1d303fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0xaee0197de5c64d4856eb7eb587342344c440532634e5274f243302a2c706daf9","name":"Cesar Ulises Castellanos Perez","registered_at":"2026-06-20T09:28:06Z","symbol":"NIM1579869","token_address":"0x185add4d77a7832c97aaea97e678abade6650198","type":"artist","uuid":"aabc1b3a-ae8c-4fe2-be9f-1cb7e1d303fc"}
album: Madre Ia En Donde Estas
  type: MusicAlbum
  date published: 2025-05-22
album: Mexmetal - Gym Power
  type: MusicAlbum
  date published: 2025-05-25
album: Mexmetal Obsidiana
  type: MusicAlbum
  date published: 2025-06-07
  track: Guerrero Azteca
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199479
    explicit: false
    by artist: Cesar Ulises Castellanos Perez
    in album: Mexmetal Obsidiana
      type: MusicAlbum
      date published: 2025-06-07
    genre: mexican rock
    isrc code: USHM82563204
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T16:13:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x806490959bbebc6bf6a18f4260dcea47701a45afaa800040892e65f737285b18
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82563204
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T16:23:52Z
    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 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 0x806490959bbebc6bf6a18f4260dcea47701a45afaa800040892e65f737285b18. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/USHM82563204.
      date published: 2026-07-22T16:23:52Z
    audio: Guerrero Azteca
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.513
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.626
      additional property: Energy
        type: PropertyValue
        value: 0.734
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.058
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.356
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.401
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.963
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Mexmetal - Sangre
  type: MusicAlbum
  date published: 2025-07-02