Vamlingbo Quartet
type: MusicGroup
popularity: 2
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5e056afc4f7a56d4f267d86f6f8c2168b77e20591d1fc5394b89f067212bd1a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953958
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953958
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26d50f7d-a764-4368-9f3c-fb64379e783a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26d50f7d-a764-4368-9f3c-fb64379e783a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/26d50f7d-a764-4368-9f3c-fb64379e783a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:52:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5e056afc4f7a56d4f267d86f6f8c2168b77e20591d1fc5394b89f067212bd1a5","name":"Vamlingbo Quartet","registered_at":"2026-06-16T03:01:21Z","symbol":"NIM0916688","token_address":"0x502b28c4a6ef3d10285f80cef39a9fcaff744174","type":"artist","uuid":"26d50f7d-a764-4368-9f3c-fb64379e783a"}
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 0x5e056afc4f7a56d4f267d86f6f8c2168b77e20591d1fc5394b89f067212bd1a5. Chain 2 (Bitcoin): anchored in block 953959 (2026-06-16T14:51:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26d50f7d-a764-4368-9f3c-fb64379e783a.json and https://artists.proofprofile.net/proofs/artist/26d50f7d-a764-4368-9f3c-fb64379e783a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:51:55Z
  text: {"copyright_id":"0x5e056afc4f7a56d4f267d86f6f8c2168b77e20591d1fc5394b89f067212bd1a5","name":"Vamlingbo Quartet","registered_at":"2026-06-16T03:01:21Z","symbol":"NIM0916688","token_address":"0x502b28c4a6ef3d10285f80cef39a9fcaff744174","type":"artist","uuid":"26d50f7d-a764-4368-9f3c-fb64379e783a"}
track: The Dreams & Prayers of Isaac the Blind: Postlude

The Dreams & Prayers of Isaac the Blind: Postlude
type: MusicRecording
duration: PT2M55S
duration ms: 175813
explicit: false
by artist: Osvaldo Golijov
by artist: Emil Jonason
by artist: Vamlingbo Quartet
in album: Lindberg: The Erratic Dreams of Mr Grönstedt - Golijov: The Dreams & Prayers of Isaac the Blind
  type: MusicAlbum
  date published: 2017-04-07
isrc code: SEAEW1688110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-24T16:04:58+00:00
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x455fabc40f2431a66dc061f4ef761a4a6d3ed41552d4c645bb720437f0a48cba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAEW1688110
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0x455fabc40f2431a66dc061f4ef761a4a6d3ed41552d4c645bb720437f0a48cba. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEAEW1688110.
  date published: 2026-07-02T05:09:12Z
audio: The Dreams & Prayers of Isaac the Blind: Postlude
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  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
  additional property: Energy
    type: PropertyValue
    value: 0
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.615
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor