Niseff
type: MusicGroup
genre: krautrock
genre: tropical house
popularity: 10
followers: 1958
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8434e11aa4542207e7f3b6fbb6937d3af70c3e886afd7e758d95a660ebc0144d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e73ab385-2565-4c62-a83a-3ac194dbfc18.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e73ab385-2565-4c62-a83a-3ac194dbfc18.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e73ab385-2565-4c62-a83a-3ac194dbfc18
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
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 0x8434e11aa4542207e7f3b6fbb6937d3af70c3e886afd7e758d95a660ebc0144d. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e73ab385-2565-4c62-a83a-3ac194dbfc18.json and https://artists.proofprofile.net/proofs/artist/e73ab385-2565-4c62-a83a-3ac194dbfc18.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
album: Mami Spicy
  type: MusicAlbum
  date published: 2023-01-27
  track: Efecto Mariposa
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150000
    explicit: false
    by artist: Niseff
    in album: Mami Spicy
      type: MusicAlbum
      date published: 2023-01-27
    genre: krautrock
    genre: tropical house
    isrc code: TCAGS2366909
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T01:52:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe2739ff22519fc3bbef871157131da54df831df9cd92297058ce41e0f8d47e5e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGS2366909
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:54:31Z
    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 0xe2739ff22519fc3bbef871157131da54df831df9cd92297058ce41e0f8d47e5e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:54:31Z), 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/TCAGS2366909.
      date published: 2026-07-21T04:54:31Z
    audio: Efecto Mariposa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.388
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
        type: PropertyValue
        value: 0.572
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.16
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.233
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.535
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Mi Cora
  type: MusicAlbum
  date published: 2023-03-31
album: Punto Exacto
  type: MusicAlbum
  date published: 2023-04-14
  track: Punto Exacto
    type: MusicRecording
    duration: PT2M48S
    duration ms: 168510
    explicit: false
    by artist: Niseff
    in album: Punto Exacto
      type: MusicAlbum
      date published: 2023-04-14
    genre: krautrock
    genre: tropical house
    isrc code: TCAGZ2329424
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:19:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x330dd7dde354c75534c699a1fc5b849c18684501cad171273a7c5b775aff1d13
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGZ2329424
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0x330dd7dde354c75534c699a1fc5b849c18684501cad171273a7c5b775aff1d13. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAGZ2329424.
      date published: 2026-07-05T10:59:37Z
    audio: Punto Exacto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.031
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.85
      additional property: Energy
        type: PropertyValue
        value: 0.676
      additional property: Speechiness
        type: PropertyValue
        value: 0.092
      additional property: Acousticness
        type: PropertyValue
        value: 0.074
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: La Nota
album: Te Gusta
album: Tiempo
album: Ice

Liveness
type: PropertyValue
value: 0.152

Valence (Positivity)
type: PropertyValue
value: 0.474

Loudness (dB)
type: PropertyValue
value: -5.405

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor

La Nota
type: MusicAlbum
date published: 2023-05-15

Te Gusta
type: MusicAlbum
date published: 2023-09-15

Tiempo
type: MusicAlbum
date published: 2025-01-28

Ice
type: MusicAlbum
date published: 2025-03-28