Ang Sirena
type: MusicGroup
popularity: 4
followers: 242
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa15c517dd463ab10fde9db6a37134d350abddfff11e6de4a5acf6452565290c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/861ae17b-f88b-4bc0-8480-24edb3a1a84c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/861ae17b-f88b-4bc0-8480-24edb3a1a84c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/861ae17b-f88b-4bc0-8480-24edb3a1a84c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa15c517dd463ab10fde9db6a37134d350abddfff11e6de4a5acf6452565290c5","name":"Ang Sirena","registered_at":"2026-06-17T12:48:37Z","symbol":"NIM1400317","token_address":"0x5c3098eed9f1ec071cd4eed23eae38fe5cc6e251","type":"artist","uuid":"861ae17b-f88b-4bc0-8480-24edb3a1a84c"}
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 0xa15c517dd463ab10fde9db6a37134d350abddfff11e6de4a5acf6452565290c5. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/861ae17b-f88b-4bc0-8480-24edb3a1a84c.json and https://artists.proofprofile.net/proofs/artist/861ae17b-f88b-4bc0-8480-24edb3a1a84c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa15c517dd463ab10fde9db6a37134d350abddfff11e6de4a5acf6452565290c5","name":"Ang Sirena","registered_at":"2026-06-17T12:48:37Z","symbol":"NIM1400317","token_address":"0x5c3098eed9f1ec071cd4eed23eae38fe5cc6e251","type":"artist","uuid":"861ae17b-f88b-4bc0-8480-24edb3a1a84c"}
album: Hold Me
  type: MusicAlbum
  date published: 2023-05-31
album: Lost In You
  type: MusicAlbum
  date published: 2023-09-28
album: Lovesick (Radio Edit)
  type: MusicAlbum
  date published: 2024-03-01
album: Alone But Not Lonely
  type: MusicAlbum
  date published: 2024-03-01
album: Presence Under the Tree
  type: MusicAlbum
  date published: 2024-12-13
album: Rose Colored Glasses
  type: MusicAlbum
  date published: 2025-03-06
  track: Rose Colored Glasses
    type: MusicRecording
    duration: PT5M25S
    duration ms: 325320
    explicit: false
    by artist: Ang Sirena
    in album: Rose Colored Glasses
      type: MusicAlbum
      date published: 2025-03-06
    isrc code: QZHN92501635
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:59:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xff777bc17f5e904eae1733f35729ec1c51cdeb3ea87660153b55f4383f9a192e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92501635
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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 0xff777bc17f5e904eae1733f35729ec1c51cdeb3ea87660153b55f4383f9a192e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZHN92501635.
      date published: 2026-07-17T23:18:11Z
    audio: Rose Colored Glasses
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 78.946
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.522
      additional property: Energy
        type: PropertyValue
        value: 0.443
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.61
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.021
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.138
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.342
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Rose Colored Glasses
  type: MusicAlbum
  date published: 2025-03-06
album: Rose Colored Glasses
  type: MusicAlbum
  date published: 2025-08-01