Celso Espejo Rondalla
type: MusicGroup
popularity: 8
followers: 366
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x32ca423aa9220a2ab4dc4b9a75553ef8be1c60af5b67c849b84c1907413a17e1
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/ea26dc13-e672-49af-b81f-567f0485e618.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea26dc13-e672-49af-b81f-567f0485e618.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea26dc13-e672-49af-b81f-567f0485e618
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x32ca423aa9220a2ab4dc4b9a75553ef8be1c60af5b67c849b84c1907413a17e1","name":"Celso Espejo Rondalla","registered_at":"2026-06-21T10:44:47Z","symbol":"NIM1901991","token_address":"0xb5c9b4cc18bd1b495e89673298257fdec6421633","type":"artist","uuid":"ea26dc13-e672-49af-b81f-567f0485e618"}
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 0x32ca423aa9220a2ab4dc4b9a75553ef8be1c60af5b67c849b84c1907413a17e1. 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/ea26dc13-e672-49af-b81f-567f0485e618.json and https://artists.proofprofile.net/proofs/artist/ea26dc13-e672-49af-b81f-567f0485e618.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x32ca423aa9220a2ab4dc4b9a75553ef8be1c60af5b67c849b84c1907413a17e1","name":"Celso Espejo Rondalla","registered_at":"2026-06-21T10:44:47Z","symbol":"NIM1901991","token_address":"0xb5c9b4cc18bd1b495e89673298257fdec6421633","type":"artist","uuid":"ea26dc13-e672-49af-b81f-567f0485e618"}
album: Philippine Folk and Foreign Classics
  type: MusicAlbum
  date published: 2020-12-01
  track: Dalagang Pilipina
    type: MusicRecording
    duration: PT3M9S
    duration ms: 189883
    explicit: false
    by artist: Celso Espejo Rondalla
    in album: Philippine Folk and Foreign Classics
      type: MusicAlbum
      date published: 2020-12-01
    isrc code: QZNWU2074498
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T12:45:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xee3fed0f6b24d350715eb7ac15e2b72cce6ecd2a93aff301e69da95e5b932e45
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959132
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959132
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWU2074498
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T13:20:46Z
    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 0xee3fed0f6b24d350715eb7ac15e2b72cce6ecd2a93aff301e69da95e5b932e45. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/QZNWU2074498.
      date published: 2026-07-22T13:20:46Z
    audio: Dalagang Pilipina
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 65.735
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.248
      additional property: Energy
        type: PropertyValue
        value: 0.349
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.913
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.874
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.509
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.367
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ferdinand Herold's ZAMPA OVERTURE in Plucked Strings
  type: MusicAlbum
  date published: 2021-03-06
  track: Planting Rice
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204023
    explicit: false
    by artist: Celso Espejo Rondalla
    in album: Ferdinand Herold's ZAMPA OVERTURE in Plucked Strings
      type: MusicAlbum
      date published: 2021-03-06
    isrc code: QZDA62110271
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:15:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb7d8860413ead4299dff603a9729ba79c31df4b71149444106e2634b6193b762
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62110271
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xb7d8860413ead4299dff603a9729ba79c31df4b71149444106e2634b6193b762. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZDA62110271.
      date published: 2026-07-05T19:27:56Z
    audio: Planting Rice
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.179
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.556
      additional property: Energy
        type: PropertyValue
        value: 0.425
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.421
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.326
      additional property: Liveness
        type: PropertyValue
        value: 0.333
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.627
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Foreign Light Classics

Loudness (dB)
type: PropertyValue
value: -10.374

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Foreign Light Classics
type: MusicAlbum
date published: 2021-04-06