Lost Tone
type: MusicGroup
genre: psytrance
popularity: 4
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x76a3ea7a9effe86c1f04b2fbb86527c833ca2582e7cb99b612ae8b46dff51c14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41bf0ea3-eef0-46ec-96f8-334f67efa80e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41bf0ea3-eef0-46ec-96f8-334f67efa80e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41bf0ea3-eef0-46ec-96f8-334f67efa80e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x76a3ea7a9effe86c1f04b2fbb86527c833ca2582e7cb99b612ae8b46dff51c14","name":"Lost Tone","registered_at":"2026-06-16T12:28:37Z","symbol":"NIM1052103","token_address":"0xfd0f2918834942a92d0304781a93636a8f44ea1c","type":"artist","uuid":"41bf0ea3-eef0-46ec-96f8-334f67efa80e"}
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 0x76a3ea7a9effe86c1f04b2fbb86527c833ca2582e7cb99b612ae8b46dff51c14. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41bf0ea3-eef0-46ec-96f8-334f67efa80e.json and https://artists.proofprofile.net/proofs/artist/41bf0ea3-eef0-46ec-96f8-334f67efa80e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:56:08Z
  text: {"copyright_id":"0x76a3ea7a9effe86c1f04b2fbb86527c833ca2582e7cb99b612ae8b46dff51c14","name":"Lost Tone","registered_at":"2026-06-16T12:28:37Z","symbol":"NIM1052103","token_address":"0xfd0f2918834942a92d0304781a93636a8f44ea1c","type":"artist","uuid":"41bf0ea3-eef0-46ec-96f8-334f67efa80e"}
album: The Search
  type: MusicAlbum
  date published: 2022-06-17
album: Envolve
  type: MusicAlbum
  date published: 2023-09-08
album: Sameness
  type: MusicAlbum
  date published: 2025-01-17
  track: Sameness - Original Mix
    type: MusicRecording
    duration: PT8M7S
    duration ms: 487282
    explicit: false
    by artist: Lost Tone
    in album: Sameness
      type: MusicAlbum
      date published: 2025-01-17
    genre: psytrance
    isrc code: UKR6V2446122
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T21:20:27+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf29c06451ab8d5751ca0a787160f8dc034aee9bebb820d5b0bdba4bdb50300d3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958785
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958785
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKR6V2446122
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:40:06Z
    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 0xf29c06451ab8d5751ca0a787160f8dc034aee9bebb820d5b0bdba4bdb50300d3. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/UKR6V2446122.
      date published: 2026-07-19T21:40:06Z
    audio: Sameness - Original Mix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.008
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.654
      additional property: Energy
        type: PropertyValue
        value: 0.761
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.124
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.864
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.245
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.104
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Utopia
  type: MusicAlbum
  date published: 2025-04-25