Die Helden der Stadt
type: MusicGroup
popularity: 4
followers: 201
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a7899e3e5804c360c6f377ec2d99e88caad815f85098850c480608b13fdb7d5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae4dce9b-fe3a-4b07-9f52-a8834b7c8544.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ae4dce9b-fe3a-4b07-9f52-a8834b7c8544.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ae4dce9b-fe3a-4b07-9f52-a8834b7c8544
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a7899e3e5804c360c6f377ec2d99e88caad815f85098850c480608b13fdb7d5","name":"Die Helden der Stadt","registered_at":"2026-06-20T10:30:55Z","symbol":"NIM1595719","token_address":"0x2183d2568a9ca716c949697608f95eeca91dabc8","type":"artist","uuid":"ae4dce9b-fe3a-4b07-9f52-a8834b7c8544"}
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 0x1a7899e3e5804c360c6f377ec2d99e88caad815f85098850c480608b13fdb7d5. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae4dce9b-fe3a-4b07-9f52-a8834b7c8544.json and https://artists.proofprofile.net/proofs/artist/ae4dce9b-fe3a-4b07-9f52-a8834b7c8544.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0x1a7899e3e5804c360c6f377ec2d99e88caad815f85098850c480608b13fdb7d5","name":"Die Helden der Stadt","registered_at":"2026-06-20T10:30:55Z","symbol":"NIM1595719","token_address":"0x2183d2568a9ca716c949697608f95eeca91dabc8","type":"artist","uuid":"ae4dce9b-fe3a-4b07-9f52-a8834b7c8544"}
album: Kinderlieder
  type: MusicAlbum
  date published: 2019-09-13
  track: Fionas lied
    type: MusicRecording
    duration: PT2M32S
    duration ms: 152272
    explicit: false
    by artist: Die Helden der Stadt
    in album: Kinderlieder
      type: MusicAlbum
      date published: 2019-09-13
    isrc code: SE6A91989280
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T16:03:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc60905db777def61e19a898aee7fc074122f424822b7bc6331b041f967740cd1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6A91989280
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xc60905db777def61e19a898aee7fc074122f424822b7bc6331b041f967740cd1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE6A91989280.
      date published: 2026-07-05T19:27:56Z
    audio: Fionas lied
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.04
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.692
      additional property: Energy
        type: PropertyValue
        value: 0.812
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.247
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.924
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.811
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Schlafenszeit
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168000
    explicit: false
    by artist: Die Helden der Stadt
    in album: Kinderlieder
      type: MusicAlbum
      date published: 2019-09-13
    isrc code: SE6A91989290
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T02:11:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5066fa7b7f66f282fd664b26e78f95820aa79044eff67eee776ac3cf5173d5b1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958955
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958955
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6A91989290
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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 0x5066fa7b7f66f282fd664b26e78f95820aa79044eff67eee776ac3cf5173d5b1. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SE6A91989290.
      date published: 2026-07-21T03:03:40Z
    audio: Schlafenszeit
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.952
      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: 0.424
      additional property: Energy
        type: PropertyValue
        value: 0.181
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.722
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.073
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.34
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.931
      additional property: Key Name
      additional property: Mode Name

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Kinderlieder
type: MusicAlbum
date published: 2019-09-13