Undersea Poem
type: MusicGroup
popularity: 4
followers: 364
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7fa265b85c30d2bc9c32fca03306f2ccba4ffd44ef70f2831f27ccf0eab0c15f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56d38bba-facd-4e09-96ad-7c858290f725.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/56d38bba-facd-4e09-96ad-7c858290f725.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/56d38bba-facd-4e09-96ad-7c858290f725
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7fa265b85c30d2bc9c32fca03306f2ccba4ffd44ef70f2831f27ccf0eab0c15f","name":"Undersea Poem","registered_at":"2026-06-16T19:49:02Z","symbol":"NIM1157191","token_address":"0xbd967d5b8d4d04ffc464f061453c7afd43fa9cfa","type":"artist","uuid":"56d38bba-facd-4e09-96ad-7c858290f725"}
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 0x7fa265b85c30d2bc9c32fca03306f2ccba4ffd44ef70f2831f27ccf0eab0c15f. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/56d38bba-facd-4e09-96ad-7c858290f725.json and https://artists.proofprofile.net/proofs/artist/56d38bba-facd-4e09-96ad-7c858290f725.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x7fa265b85c30d2bc9c32fca03306f2ccba4ffd44ef70f2831f27ccf0eab0c15f","name":"Undersea Poem","registered_at":"2026-06-16T19:49:02Z","symbol":"NIM1157191","token_address":"0xbd967d5b8d4d04ffc464f061453c7afd43fa9cfa","type":"artist","uuid":"56d38bba-facd-4e09-96ad-7c858290f725"}
album: Undersea Poem
  type: MusicAlbum
  date published: 2010-02-09
album: Undersea Poem
  type: MusicAlbum
  date published: 2010-02-09
album: Undersea Poem
  type: MusicAlbum
  date published: 2010-02-09
  track: Come Só, Morre Só
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144480
    explicit: false
    by artist: Undersea Poem
    in album: Undersea Poem
      type: MusicAlbum
      date published: 2010-02-09
    isrc code: US6DR0901546
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T14:35:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdbf51c184f3b88b143b904709b8484e8d8c8a7989ad7db53135a5cffe891838d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US6DR0901546
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xdbf51c184f3b88b143b904709b8484e8d8c8a7989ad7db53135a5cffe891838d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/US6DR0901546.
      date published: 2026-07-05T18:48:28Z
    audio: Come Só, Morre Só
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.004
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.787
      additional property: Energy
        type: PropertyValue
        value: 0.442
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.455
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.008
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.539
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.358
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Washing Away Yesterday
  type: MusicAlbum
  date published: 2011-02-22
album: Washing Away Yesterday
  type: MusicAlbum
  date published: 2011-02-22