Doppia O
type: MusicGroup
popularity: 6
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x638212581d262233dcc71d98d6b82e1ef8295b57cebc097feb1e9c505dafca38
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/809699c5-42d4-4e85-94bc-d6d2b7ee3940.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/809699c5-42d4-4e85-94bc-d6d2b7ee3940.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/809699c5-42d4-4e85-94bc-d6d2b7ee3940
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x638212581d262233dcc71d98d6b82e1ef8295b57cebc097feb1e9c505dafca38","name":"Doppia O","registered_at":"2026-06-17T10:51:49Z","symbol":"NIM1372532","token_address":"0xc1dfa7cd87b74a0894a74d1b5627a4dc2d98cfdb","type":"artist","uuid":"809699c5-42d4-4e85-94bc-d6d2b7ee3940"}
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 0x638212581d262233dcc71d98d6b82e1ef8295b57cebc097feb1e9c505dafca38. 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/809699c5-42d4-4e85-94bc-d6d2b7ee3940.json and https://artists.proofprofile.net/proofs/artist/809699c5-42d4-4e85-94bc-d6d2b7ee3940.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x638212581d262233dcc71d98d6b82e1ef8295b57cebc097feb1e9c505dafca38","name":"Doppia O","registered_at":"2026-06-17T10:51:49Z","symbol":"NIM1372532","token_address":"0xc1dfa7cd87b74a0894a74d1b5627a4dc2d98cfdb","type":"artist","uuid":"809699c5-42d4-4e85-94bc-d6d2b7ee3940"}
album: Fingere
  type: MusicAlbum
  date published: 2024-03-01
album: Fingere
  type: MusicAlbum
  date published: 2024-03-01
album: Ogni para mia
  type: MusicAlbum
  date published: 2024-06-07
album: Ossigeno
  type: MusicAlbum
  date published: 2024-09-27
album: Di Leggerezza Non Si Muore
  type: MusicAlbum
  date published: 2025-02-25
album: Energia
  type: MusicAlbum
  date published: 2025-02-28
  track: Energia
    type: MusicRecording
    duration: PT2M35S
    duration ms: 155294
    explicit: false
    by artist: Doppia O
    in album: Energia
      type: MusicAlbum
      date published: 2025-02-28
    isrc code: US38Y2507464
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T01:25:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc6c12f6297949b8f6b9d526e8bc275657549ae6af10d42f9147438a3ab088a64
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US38Y2507464
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0xc6c12f6297949b8f6b9d526e8bc275657549ae6af10d42f9147438a3ab088a64. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/US38Y2507464.
      date published: 2026-07-03T08:56:35Z
    audio: Energia
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.971
      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: 0.688
      additional property: Energy
        type: PropertyValue
        value: 0.768
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.093
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.286
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.209
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.269
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Come il mare al Sud
  type: MusicAlbum
  date published: 2025-07-07
album: Gratitudine
  type: MusicAlbum
  date published: 2025-09-12
  track: Gratitudine
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222000
    explicit: false
    by artist: Doppia O
    in album: Gratitudine
      type: MusicAlbum
      date published: 2025-09-12
    isrc code: US38Y2570030
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T08:27:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2086b0d38a643c9034370247deb3256facfe41ca9cc65205cadf780fcde34aab
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US38Y2570030
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x2086b0d38a643c9034370247deb3256facfe41ca9cc65205cadf780fcde34aab. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US38Y2570030.
      date published: 2026-07-05T10:01:46Z
    audio: Gratitudine
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.959
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.715
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Energy
type: PropertyValue
value: 0.607

Speechiness
type: PropertyValue
value: 0.075

Acousticness
type: PropertyValue
value: 0.031

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.089

Valence (Positivity)
type: PropertyValue
value: 0.204

Loudness (dB)
type: PropertyValue
value: -8.593

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor