Dagmar Dümchen
type: MusicGroup
genre: latin folk
popularity: 7
followers: 287
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x615a393e598f7c262280829a83f930fcfd4a449b0d8f91c6fbfd4974152dd20b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12135930-6187-4eee-97b4-f424e6d1535a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12135930-6187-4eee-97b4-f424e6d1535a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/12135930-6187-4eee-97b4-f424e6d1535a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x615a393e598f7c262280829a83f930fcfd4a449b0d8f91c6fbfd4974152dd20b","name":"Dagmar Dümchen","registered_at":"2026-06-15T19:55:43Z","symbol":"NIM0815090","token_address":"0xaaa65d770c3ca62f8423bec4fb730bab7e692a50","type":"artist","uuid":"12135930-6187-4eee-97b4-f424e6d1535a"}
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 0x615a393e598f7c262280829a83f930fcfd4a449b0d8f91c6fbfd4974152dd20b. 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/12135930-6187-4eee-97b4-f424e6d1535a.json and https://artists.proofprofile.net/proofs/artist/12135930-6187-4eee-97b4-f424e6d1535a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x615a393e598f7c262280829a83f930fcfd4a449b0d8f91c6fbfd4974152dd20b","name":"Dagmar Dümchen","registered_at":"2026-06-15T19:55:43Z","symbol":"NIM0815090","token_address":"0xaaa65d770c3ca62f8423bec4fb730bab7e692a50","type":"artist","uuid":"12135930-6187-4eee-97b4-f424e6d1535a"}
album: Lateinamerika - Ein Lied | Bolivien - Eine Hoffnung
  type: MusicAlbum
  date published: 1991-05-13
album: Renacer
  type: MusicAlbum
  date published: 1993-05-02
album: El Color del Dolor
  type: MusicAlbum
  date published: 1999-06-01
album: Sentir Vigente
  type: MusicAlbum
  date published: 1999-06-02
album: Deutsche Volkslieder
  type: MusicAlbum
  date published: 2000-05-13
album: Memorias y Amigos de Peña Vol. 2
  type: MusicAlbum
  date published: 2001-05-13
album: A Mi Patria... Bolivia
  type: MusicAlbum
  date published: 2001-05-13
album: Schlaflíeder
  type: MusicAlbum
  date published: 2002-05-15
  track: Schlaf Anne
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147600
    explicit: false
    by artist: Dagmar Dümchen
    in album: Schlaflíeder
      type: MusicAlbum
      date published: 2002-05-15
    genre: latin folk
    isrc code: QM6MZ1995342
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T19:15:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5bea92b465ddcfe278d76e21949e97ff111479fe2f1bdd8fca15889067d3f243
    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/QM6MZ1995342
    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 0x5bea92b465ddcfe278d76e21949e97ff111479fe2f1bdd8fca15889067d3f243. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1995342 — a six-check JSON result.
      date published: 2026-07-05T19:27:56Z
    audio: Schlaf Anne
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.714
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.598
      additional property: Energy
        type: PropertyValue
        value: 0.027
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.941
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.429
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.344
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Memorias y Amigos de Peña
  type: MusicAlbum
  date published: 2004-05-13
album: Un Gracias a "La Negra"
  type: MusicAlbum
  date published: 2015-05-01
album: Tanto de Matilde
  type: MusicAlbum
  date published: 2015-05-13
album: De Todo un Poco
  type: MusicAlbum
  date published: 2017-05-13
album: Inspirados
  type: MusicAlbum
  date published: 2024-07-10
album: Amor es estar en Paz
  type: MusicAlbum
  date published: 2024-07-24
album: Popurrí Boliviano
  type: MusicAlbum
  date published: 2024-09-23
album: Amado Papá
  type: MusicAlbum
  date published: 2024-09-23
album: El Mejor Día
  type: MusicAlbum
  date published: 2025-02-19