Harpsea
type: MusicGroup
popularity: 6
followers: 135
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa9705a752061b2b011642c8c896896e2b57b01889e2c9a355af78e0ca30c9b98
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e75cc23-08c3-4092-911a-cfc00bc86989.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e75cc23-08c3-4092-911a-cfc00bc86989.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5e75cc23-08c3-4092-911a-cfc00bc86989
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xa9705a752061b2b011642c8c896896e2b57b01889e2c9a355af78e0ca30c9b98. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e75cc23-08c3-4092-911a-cfc00bc86989.json and https://artists.proofprofile.net/proofs/artist/5e75cc23-08c3-4092-911a-cfc00bc86989.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Bloom
  type: MusicAlbum
  date published: 2019-07-01
album: Crazy
  type: MusicAlbum
  date published: 2019-09-27
album: Awakening
  type: MusicAlbum
  date published: 2019-12-06
album: Find Your Way
  type: MusicAlbum
  date published: 2020-05-04
  track: Find Your Way
    type: MusicRecording
    duration: PT2M57S
    duration ms: 177296
    explicit: false
    by artist: Harpsea
    in album: Find Your Way
      type: MusicAlbum
      date published: 2020-05-04
    isrc code: QZES72075027
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T15:29:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4df426ba263e765ad1da3b25e2b793a81f296d760c506c6985725a949bc0e17c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958749
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958749
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72075027
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T18:33:20Z
    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 0x4df426ba263e765ad1da3b25e2b793a81f296d760c506c6985725a949bc0e17c. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:33:20Z), 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/QZES72075027.
      date published: 2026-07-19T18:33:20Z
    audio: Find Your Way
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.022
      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: 0.692
      additional property: Energy
        type: PropertyValue
        value: 0.697
      additional property: Speechiness
        type: PropertyValue
        value: 0.107
      additional property: Acousticness
        type: PropertyValue
        value: 0.073
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.375
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.599
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Green Light Go
  type: MusicAlbum
  date published: 2020-05-29
album: Melancholy East
  type: MusicAlbum
  date published: 2020-07-17
album: Lift Me Up
  type: MusicAlbum
  date published: 2020-10-01
album: I Should Leave
  type: MusicAlbum
  date published: 2022-02-04
album: OHH NO!
  type: MusicAlbum
  date published: 2022-03-14
album: Flair
  type: MusicAlbum
  date published: 2022-06-03
album: Gummy Bear
  type: MusicAlbum
  date published: 2022-06-24
album: Wasting Time
  type: MusicAlbum
  date published: 2023-02-10
album: Swing Back
  type: MusicAlbum
  date published: 2024-04-12