Lämmchen
type: MusicGroup
popularity: 5
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa72d3fd934e07c98e033c76c9ddb4ec136e7033bae440775eab82d29cd4b5d9b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953860
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953860
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03519009-012d-46e5-a15d-c66bdc052645.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/03519009-012d-46e5-a15d-c66bdc052645.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/03519009-012d-46e5-a15d-c66bdc052645
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T23:55:46Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa72d3fd934e07c98e033c76c9ddb4ec136e7033bae440775eab82d29cd4b5d9b","name":"Lämmchen","registered_at":"2026-06-15T14:39:36Z","symbol":"NIM0739655","token_address":"0xa7b748bcaa13aaaa7f9a09311bb3317a735702e0","type":"artist","uuid":"03519009-012d-46e5-a15d-c66bdc052645"}
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 0xa72d3fd934e07c98e033c76c9ddb4ec136e7033bae440775eab82d29cd4b5d9b. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03519009-012d-46e5-a15d-c66bdc052645.json and https://artists.proofprofile.net/proofs/artist/03519009-012d-46e5-a15d-c66bdc052645.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xa72d3fd934e07c98e033c76c9ddb4ec136e7033bae440775eab82d29cd4b5d9b","name":"Lämmchen","registered_at":"2026-06-15T14:39:36Z","symbol":"NIM0739655","token_address":"0xa7b748bcaa13aaaa7f9a09311bb3317a735702e0","type":"artist","uuid":"03519009-012d-46e5-a15d-c66bdc052645"}
album: Bierball
  type: MusicAlbum
  date published: 2025-07-11
  track: Bierball
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172800
    explicit: false
    by artist: Lämmchen
    in album: Bierball
      type: MusicAlbum
      date published: 2025-07-11
    isrc code: CALVP2518412
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T00:28:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x965540ae5904e9711ffe252ce2ea6a65ec978588321c644913a33f18f4cb694d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957782
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957782
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CALVP2518412
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T00:52:48Z
    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 0x965540ae5904e9711ffe252ce2ea6a65ec978588321c644913a33f18f4cb694d. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/CALVP2518412.
      date published: 2026-07-13T00:52:48Z
    audio: Bierball
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 76.614
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.738
      additional property: Energy
        type: PropertyValue
        value: 0.589
      additional property: Speechiness
        type: PropertyValue
        value: 0.396
      additional property: Acousticness
        type: PropertyValue
        value: 0.112
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.329
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.769
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.226
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ich höre Bäume weinen
  type: MusicAlbum
  date published: 2025-08-30