Sami Katana
type: MusicGroup
popularity: 5
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe4dbae5296c48141d282969a3699c1d887c5dc397ca5d0875151dc97d29c722b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a06a916-e487-4603-8a18-eae5cbd21fa5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8a06a916-e487-4603-8a18-eae5cbd21fa5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8a06a916-e487-4603-8a18-eae5cbd21fa5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe4dbae5296c48141d282969a3699c1d887c5dc397ca5d0875151dc97d29c722b","name":"Sami Katana","registered_at":"2026-06-17T13:35:07Z","symbol":"NIM1411403","token_address":"0xedabf410796afd5e544398105f8a4e50a8f9d3fc","type":"artist","uuid":"8a06a916-e487-4603-8a18-eae5cbd21fa5"}
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 0xe4dbae5296c48141d282969a3699c1d887c5dc397ca5d0875151dc97d29c722b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a06a916-e487-4603-8a18-eae5cbd21fa5.json and https://artists.proofprofile.net/proofs/artist/8a06a916-e487-4603-8a18-eae5cbd21fa5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xe4dbae5296c48141d282969a3699c1d887c5dc397ca5d0875151dc97d29c722b","name":"Sami Katana","registered_at":"2026-06-17T13:35:07Z","symbol":"NIM1411403","token_address":"0xedabf410796afd5e544398105f8a4e50a8f9d3fc","type":"artist","uuid":"8a06a916-e487-4603-8a18-eae5cbd21fa5"}
album: otra noche con lluvia
  type: MusicAlbum
  date published: 2025-07-04
  track: otra noche con lluvia
    type: MusicRecording
    duration: PT3M21S
    duration ms: 201993
    explicit: false
    by artist: Sami Katana
    in album: otra noche con lluvia
      type: MusicAlbum
      date published: 2025-07-04
    isrc code: SE6XW2506731
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:27:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6526b6a621e023960dbb66138b63ce2eb3fd33f2bbc85c4d66ed79b5b4d701a9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2506731
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:53:26Z
    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 0x6526b6a621e023960dbb66138b63ce2eb3fd33f2bbc85c4d66ed79b5b4d701a9. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SE6XW2506731.
      date published: 2026-07-17T00:53:26Z
    audio: otra noche con lluvia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.985
      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: 0.917
      additional property: Energy
        type: PropertyValue
        value: 0.394
      additional property: Speechiness
        type: PropertyValue
        value: 0.392
      additional property: Acousticness
        type: PropertyValue
        value: 0.277
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.125
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.767
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.137
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: TODAS LAS MANERAS DE NO DECIR UN TE AMO
  type: MusicAlbum
  date published: 2025-07-14
album: POR SI LO LLEGAS A ESCUCHAR
  type: MusicAlbum
  date published: 2025-07-30
  track: POR SI LO LLEGAS A ESCUCHAR
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184211
    explicit: false
    by artist: Sami Katana
    in album: POR SI LO LLEGAS A ESCUCHAR
      type: MusicAlbum
      date published: 2025-07-30
    isrc code: SE6XW2553550
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T13:15:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf7409430aaca5c56269e938e43821b8a201537b74a7ef3478e61db427d75a01c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958163
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958163
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2553550
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T14:38:07Z
    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 0xf7409430aaca5c56269e938e43821b8a201537b74a7ef3478e61db427d75a01c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SE6XW2553550.
      date published: 2026-07-15T14:38:07Z
    audio: POR SI LO LLEGAS A ESCUCHAR
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.008
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.875
      additional property: Energy
        type: PropertyValue
        value: 0.418
      additional property: Speechiness
        type: PropertyValue
        value: 0.45
      additional property: Acousticness
        type: PropertyValue
        value: 0.479
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.073
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: UNICOS
album: Sangre de mi Sangre

Valence (Positivity)
type: PropertyValue
value: 0.425

Loudness (dB)
type: PropertyValue
value: -7.537

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

UNICOS
type: MusicAlbum
date published: 2025-08-05

Sangre de mi Sangre
type: MusicAlbum
date published: 2025-08-11