SOMBRA
type: MusicGroup
popularity: 6
followers: 616
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa78a5d24bc35d21625ca69da3fd5c517561cd4b1ff17fc1c65de409cbc509734
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba0199fd-2822-4b9d-b0c7-2b8aa65935a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba0199fd-2822-4b9d-b0c7-2b8aa65935a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba0199fd-2822-4b9d-b0c7-2b8aa65935a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
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 0xa78a5d24bc35d21625ca69da3fd5c517561cd4b1ff17fc1c65de409cbc509734. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba0199fd-2822-4b9d-b0c7-2b8aa65935a0.json and https://artists.proofprofile.net/proofs/artist/ba0199fd-2822-4b9d-b0c7-2b8aa65935a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Wie mir
  type: MusicAlbum
  date published: 2022-06-03
album: Karma
  type: MusicAlbum
  date published: 2022-07-22
album: Corazon
  type: MusicAlbum
  date published: 2022-08-24
album: Nach obe
  type: MusicAlbum
  date published: 2022-10-07
album: Zombie
  type: MusicAlbum
  date published: 2022-10-28
album: Glaub an dich
  type: MusicAlbum
  date published: 2023-02-10
album: Sombra
  type: MusicAlbum
  date published: 2023-03-31
album: NOVA
  type: MusicAlbum
  date published: 2023-08-18
album: TIRA
  type: MusicAlbum
  date published: 2024-02-09
album: Erwachse und Blind
  type: MusicAlbum
  date published: 2024-04-26
album: Rueh
  type: MusicAlbum
  date published: 2024-05-31
album: Entüscht
  type: MusicAlbum
  date published: 2024-06-21
  track: Entüscht
    type: MusicRecording
    duration: PT2M54S
    duration ms: 174000
    explicit: false
    by artist: SOMBRA
    in album: Entüscht
      type: MusicAlbum
      date published: 2024-06-21
    isrc code: CH7812412583
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T18:46:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc12c2b8430ebf1e26fa26b07eb399bc91ec9c58f9d2585c25e58b3485d70ea5a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956841
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956841
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812412583
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T22:14:35Z
    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 0xc12c2b8430ebf1e26fa26b07eb399bc91ec9c58f9d2585c25e58b3485d70ea5a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CH7812412583.
      date published: 2026-07-05T22:14:35Z
    audio: Entüscht
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.949
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.549
      additional property: Energy
        type: PropertyValue
        value: 0.618
      additional property: Speechiness
        type: PropertyValue
        value: 0.084
      additional property: Acousticness
        type: PropertyValue
        value: 0.672
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.181
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.71
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.314
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor