De Vrolijkheid
type: MusicGroup
popularity: 7
followers: 41
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x090e3073455547fd324e8d766236d2532755f33d9f61508bf7eacdac557eab97
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f21f8fad-a52e-45a7-902f-50edfe56e611.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f21f8fad-a52e-45a7-902f-50edfe56e611.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f21f8fad-a52e-45a7-902f-50edfe56e611
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x090e3073455547fd324e8d766236d2532755f33d9f61508bf7eacdac557eab97","name":"De Vrolijkheid","registered_at":"2026-06-21T13:17:19Z","symbol":"NIM1933200","token_address":"0x1510db212a446797c9375d47724bfc10e37c1390","type":"artist","uuid":"f21f8fad-a52e-45a7-902f-50edfe56e611"}
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 0x090e3073455547fd324e8d766236d2532755f33d9f61508bf7eacdac557eab97. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f21f8fad-a52e-45a7-902f-50edfe56e611.json and https://artists.proofprofile.net/proofs/artist/f21f8fad-a52e-45a7-902f-50edfe56e611.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x090e3073455547fd324e8d766236d2532755f33d9f61508bf7eacdac557eab97","name":"De Vrolijkheid","registered_at":"2026-06-21T13:17:19Z","symbol":"NIM1933200","token_address":"0x1510db212a446797c9375d47724bfc10e37c1390","type":"artist","uuid":"f21f8fad-a52e-45a7-902f-50edfe56e611"}
album: Melody en het Eiland van Muziek
  type: MusicAlbum
  date published: 2021-05-14
  track: Amawolé
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154027
    explicit: false
    by artist: De Vrolijkheid
    in album: Melody en het Eiland van Muziek
      type: MusicAlbum
      date published: 2021-05-14
    isrc code: GBMJG2110866
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:36:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc7ee64aec37c88837ce20e1519c5dabad8f4a9d45f1c124043082f3a2c9b4b27
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG2110866
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T17:49:48Z
    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 0xc7ee64aec37c88837ce20e1519c5dabad8f4a9d45f1c124043082f3a2c9b4b27. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBMJG2110866.
      date published: 2026-07-19T17:49:48Z
    audio: Amawolé
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.848
      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: 0.86
      additional property: Energy
        type: PropertyValue
        value: 0.47
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.24
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.094
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.909
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.643
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Gonjeshk La La
    type: MusicRecording
    duration: PT4M1S
    duration ms: 241780
    explicit: false
    by artist: De Vrolijkheid
    in album: Melody en het Eiland van Muziek
      type: MusicAlbum
      date published: 2021-05-14
    isrc code: GBMJG2110871
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T18:02:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x887bfe6075f226d01ede300f80466691486fb1c76aa50d62574d94f4af7baa4a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958185
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958185
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMJG2110871
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T18:19:04Z
    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 0x887bfe6075f226d01ede300f80466691486fb1c76aa50d62574d94f4af7baa4a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/GBMJG2110871.
      date published: 2026-07-15T18:19:04Z
    audio: Gonjeshk La La
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.003
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.587
      additional property: Energy
        type: PropertyValue
        value: 0.216
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.912
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.02
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.456
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.719
      additional property: Key Name
      additional property: Mode Name
album: Digedige (Voicetruments)
album: Moudena (Voicetruments Leiden)
album: Sonic Art
album: Ahmed
album: Zamen
album: Take Over Me
album: Hilary & Vince (Voicetruments Grave)
album: Somos Colombia (Andres y Amigos)
album: Allemaal Anders (Selim)
album: Remember

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

Digedige (Voicetruments)
type: MusicAlbum
date published: 2023-07-28

Moudena (Voicetruments Leiden)
type: MusicAlbum
date published: 2024-01-05

Sonic Art
type: MusicAlbum
date published: 2024-01-26

Ahmed
type: MusicAlbum
date published: 2024-02-23

Zamen
type: MusicAlbum
date published: 2024-03-01

Take Over Me
type: MusicAlbum
date published: 2024-12-27

Hilary & Vince (Voicetruments Grave)
type: MusicAlbum
date published: 2025-01-10

Somos Colombia (Andres y Amigos)
type: MusicAlbum
date published: 2025-01-17

Allemaal Anders (Selim)
type: MusicAlbum
date published: 2025-01-24

Remember
type: MusicAlbum
date published: 2025-02-28