Def Loken
type: MusicGroup
popularity: 27
followers: 520
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf6c09957eaa55b46e3e2c37b706ef75958d1693521976398dc676b78c47f772
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46739e4c-b6d6-46d3-8f96-6fc9ed028ff9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/46739e4c-b6d6-46d3-8f96-6fc9ed028ff9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/46739e4c-b6d6-46d3-8f96-6fc9ed028ff9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf6c09957eaa55b46e3e2c37b706ef75958d1693521976398dc676b78c47f772","name":"Def Loken","registered_at":"2026-06-11T18:54:51Z","symbol":"NIM0091984","token_address":"0xbd5ecfa43d8ad4d7db856ddeecad3c3d5fc06d91","type":"artist","uuid":"46739e4c-b6d6-46d3-8f96-6fc9ed028ff9"}
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 0xaf6c09957eaa55b46e3e2c37b706ef75958d1693521976398dc676b78c47f772. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/46739e4c-b6d6-46d3-8f96-6fc9ed028ff9.json and https://artists.proofprofile.net/proofs/artist/46739e4c-b6d6-46d3-8f96-6fc9ed028ff9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xaf6c09957eaa55b46e3e2c37b706ef75958d1693521976398dc676b78c47f772","name":"Def Loken","registered_at":"2026-06-11T18:54:51Z","symbol":"NIM0091984","token_address":"0xbd5ecfa43d8ad4d7db856ddeecad3c3d5fc06d91","type":"artist","uuid":"46739e4c-b6d6-46d3-8f96-6fc9ed028ff9"}
album: Def Loken
  type: MusicAlbum
  date published: 2024-10-23
album: MIS INICIOS
  type: MusicAlbum
  date published: 2024-11-15
album: Mijn talen
  type: MusicAlbum
  date published: 2024-11-28
  track: ik ben verlief
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156262
    explicit: false
    by artist: Def Loken
    in album: Mijn talen
      type: MusicAlbum
      date published: 2024-11-28
    isrc code: ARQIW2414639
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:59:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x26bb607011c3758f139dc89d0ab8f677823a8360918a16334b820279aa349c82
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958988
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958988
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQIW2414639
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T09:08:06Z
    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 0x26bb607011c3758f139dc89d0ab8f677823a8360918a16334b820279aa349c82. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/ARQIW2414639.
      date published: 2026-07-21T09:08:06Z
    audio: ik ben verlief
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.987
      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: 0.948
      additional property: Energy
        type: PropertyValue
        value: 0.475
      additional property: Speechiness
        type: PropertyValue
        value: 0.283
      additional property: Acousticness
        type: PropertyValue
        value: 0.094
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.163
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.883
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.723
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: toki toki
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144185
    explicit: false
    by artist: Def Loken
    in album: Mijn talen
      type: MusicAlbum
      date published: 2024-11-28
    isrc code: ARQIW2414645
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T20:33:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x93cf49377e428a7f47853be659ddec947fd934d92293a890098db117a3276ef6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956578
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956578
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARQIW2414645
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T02:23:20Z
    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 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 0x93cf49377e428a7f47853be659ddec947fd934d92293a890098db117a3276ef6. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/ARQIW2414645.
      date published: 2026-07-04T02:23:20Z
    audio: toki toki
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.032
      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: 0.86
      additional property: Energy
        type: PropertyValue
        value: 0.398
      additional property: Speechiness
        type: PropertyValue
        value: 0.168
      additional property: Acousticness
        type: PropertyValue
        value: 0.026
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.813
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: LIBERTAD
album: Talento Oculto

Valence (Positivity)
type: PropertyValue
value: 0.829

Loudness (dB)
type: PropertyValue
value: -9.11

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

LIBERTAD
type: MusicAlbum
date published: 2025-02-03

Talento Oculto
type: MusicAlbum
date published: 2025-04-24