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type: MusicGroup
genre: opera
popularity: 5
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475997509e375ab6da4ac67f294355d6fa7f3ed6971efb5c98858ca37a6f9c1e. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cabb724d-331d-40c9-973b-439708bb4820.json and https://artists.proofprofile.net/proofs/artist/cabb724d-331d-40c9-973b-439708bb4820.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
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track: Rigoletto / Act 1: "Già da tre lune son qui venuta" - "Olá?"/"Signor?" - Ah! veglia, o donna, questo fiore
track: Rigoletto / Act 1: Scena e Duetto. "Giovanna, ho dei rimorsi" (Gilda, Giovanna, Duca)
track: Aïda, Act III: O tu che sei d’osiride
track: Rigoletto / Act 1: "Che m'ami, deh! ripetimi" - "Addio... speranza ed anima" (Duca, Gilda, Ceprano, Borsa, Giovanna)
track: Aïda, Act I Scene 2: Possente Fthà

Rigoletto / Act 1: "Già da tre lune son qui venuta" - "Olá?"/"Signor?" - Ah! veglia, o donna, questo fiore
type: MusicRecording
duration: PT7M27S
duration ms: 447733
explicit: false
by artist: Giuseppe Verdi
by artist: Renata Scotto
by artist: Dietrich Fischer-Dieskau
by artist: Mirella Fiorentini
by artist: Carlo Bergonzi
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Rafael Kubelík
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: opera
isrc code: DEF056431011
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T00:32:04+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEF056431011
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd34c157ac1b7332283ac9b4de61f35f5ae5851b64161ea8699a28cb1e0ba3b7f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEF056431011.
  date published: 2026-07-08T03:53:27Z
audio: Rigoletto / Act 1: "Già da tre lune son qui venuta" - "Olá?"/"Signor?" - Ah! veglia, o donna, questo fiore
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.166
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.104
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Rigoletto / Act 1: Scena e Duetto. "Giovanna, ho dei rimorsi" (Gilda, Giovanna, Duca)
type: MusicRecording
duration: PT2M42S
duration ms: 162306
explicit: false
by artist: Giuseppe Verdi
by artist: Renata Scotto
by artist: Mirella Fiorentini
by artist: Carlo Bergonzi
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Rafael Kubelík
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: opera
isrc code: DEF056431036
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9e39000eb31d50d80866749b821297eed859f06fa9cfedb5379069808a54ff. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEF056431036.
  date published: 2026-07-08T03:22:41Z
audio: Rigoletto / Act 1: Scena e Duetto. "Giovanna, ho dei rimorsi" (Gilda, Giovanna, Duca)
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Danceability
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Aïda, Act III: O tu che sei d’osiride
type: MusicRecording
duration: PT4M31S
duration ms: 271986
explicit: false
by artist: Giuseppe Verdi
by artist: Zubin Mehta
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Coro Del Teatro Dell'Opera Di Roma
by artist: Mirella Fiorentini
in album: Verdi: Aïda
  type: MusicAlbum
  date published: 2021-07-16
genre: classical
genre: opera
isrc code: ITCC51104728
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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  value: 2026-07-07T11:55:56+00:00
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additional property: OTSHash
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
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additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2926307290865fb4ab386a08954dc7145d107ca9489e8467281d18ea345266d4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITCC51104728.
  date published: 2026-07-08T08:56:20Z
audio: Aïda, Act III: O tu che sei d’osiride
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
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  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
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Rigoletto / Act 1: "Che m'ami, deh! ripetimi" - "Addio... speranza ed anima" (Duca, Gilda, Ceprano, Borsa, Giovanna)
type: MusicRecording
duration: PT1M55S
duration ms: 115666
explicit: false
by artist: Giuseppe Verdi
by artist: Carlo Bergonzi
by artist: Renata Scotto
by artist: Alfredo Giacomotti
by artist: Piero de Palma
by artist: Mirella Fiorentini
by artist: Orchestra Del Teatro Alla Scala, Milano
by artist: Rafael Kubelík
in album: Verdi: Rigoletto
  type: MusicAlbum
  date published: 2005-01-01
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234f90ebf181da6d81d7f45e8eb4326c32ae3cfd4f57a33ce345da6c951cae0b. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DEF056431038.
  date published: 2026-07-30T12:45:34Z
audio: Rigoletto / Act 1: "Che m'ami, deh! ripetimi" - "Addio... speranza ed anima" (Duca, Gilda, Ceprano, Borsa, Giovanna)
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  additional property: Tempo (BPM)
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    type: PropertyValue
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    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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isrc code: DEF056431038
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: OTSVerificationAPI
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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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

Aïda, Act I Scene 2: Possente Fthà
type: MusicRecording
duration: PT6M22S
duration ms: 382906
explicit: false
by artist: Giuseppe Verdi
by artist: Zubin Mehta
by artist: Orchestra Del Teatro Dell'Opera Di Roma
by artist: Mirella Fiorentini
by artist: Coro Del Teatro Dell'Opera Di Roma
in album: Verdi: Aïda
  type: MusicAlbum
  date published: 2021-07-16
genre: classical
genre: opera
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066f13be952853e58c4c85ab46c0413ac1bbfca33763413056f1914b4eefbd4a. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/ITCC51104719.
  date published: 2026-07-31T19:53:13Z
audio: Aïda, Act I Scene 2: Possente Fthà
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  additional property: Speechiness
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    type: PropertyValue
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  additional property: Loudness (dB)
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isrc code: ITCC51104719
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: BitcoinTime
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additional property: OTSHash
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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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