En Oetze Verschoor
type: MusicGroup
popularity: 8
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef083d6e9e51217795c127a3bee0d9d6389cdc527d190a25ad4056074b56f7d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45db74d7-b20b-4a9c-aa63-da62e1cce92b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/45db74d7-b20b-4a9c-aa63-da62e1cce92b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/45db74d7-b20b-4a9c-aa63-da62e1cce92b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xef083d6e9e51217795c127a3bee0d9d6389cdc527d190a25ad4056074b56f7d0","name":"En Oetze Verschoor","registered_at":"2026-06-16T13:58:03Z","symbol":"NIM1073435","token_address":"0x4d2d836d5ef3ca274d98706761c53dcd37654516","type":"artist","uuid":"45db74d7-b20b-4a9c-aa63-da62e1cce92b"}
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 0xef083d6e9e51217795c127a3bee0d9d6389cdc527d190a25ad4056074b56f7d0. 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/45db74d7-b20b-4a9c-aa63-da62e1cce92b.json and https://artists.proofprofile.net/proofs/artist/45db74d7-b20b-4a9c-aa63-da62e1cce92b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xef083d6e9e51217795c127a3bee0d9d6389cdc527d190a25ad4056074b56f7d0","name":"En Oetze Verschoor","registered_at":"2026-06-16T13:58:03Z","symbol":"NIM1073435","token_address":"0x4d2d836d5ef3ca274d98706761c53dcd37654516","type":"artist","uuid":"45db74d7-b20b-4a9c-aa63-da62e1cce92b"}
track: De Zuiderzeeballade

De Zuiderzeeballade
type: MusicRecording
duration: PT4M38S
duration ms: 278466
explicit: false
by artist: Sylvain Poons
by artist: En Oetze Verschoor
in album: Hollandse Hits Top 100
  type: MusicAlbum
  date published: 2013-04-05
isrc code: NLE320700015
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-10T06:40:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f2ca8353ea59af99730df2b48b47a7fe7650c6f8505e72e9bada2fa8fd41a73
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE320700015
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2ca8353ea59af99730df2b48b47a7fe7650c6f8505e72e9bada2fa8fd41a73. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLE320700015.
  date published: 2026-06-13T13:32:09Z
audio: De Zuiderzeeballade
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 132.833
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.733
  additional property: Energy
    type: PropertyValue
    value: 0.266
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.766
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.126
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.636
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.426
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major