Luigi Di Donato
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13001fff0b8e31e039997488507ba0d8eab25b174089014f038c2d8018bb5188
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953976
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953976
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bc7bdc0-4274-44eb-b04a-8ca827e30e1d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2bc7bdc0-4274-44eb-b04a-8ca827e30e1d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2bc7bdc0-4274-44eb-b04a-8ca827e30e1d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:55:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x13001fff0b8e31e039997488507ba0d8eab25b174089014f038c2d8018bb5188","name":"Luigi Di Donato","registered_at":"2026-06-16T04:46:34Z","symbol":"NIM0941813","token_address":"0x21f50657b6ed3b2bc16950830da53f47c78aad1e","type":"artist","uuid":"2bc7bdc0-4274-44eb-b04a-8ca827e30e1d"}
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 0x13001fff0b8e31e039997488507ba0d8eab25b174089014f038c2d8018bb5188. Chain 2 (Bitcoin): anchored in block 953976 (2026-06-16T16:55:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bc7bdc0-4274-44eb-b04a-8ca827e30e1d.json and https://artists.proofprofile.net/proofs/artist/2bc7bdc0-4274-44eb-b04a-8ca827e30e1d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:55:36Z
  text: {"copyright_id":"0x13001fff0b8e31e039997488507ba0d8eab25b174089014f038c2d8018bb5188","name":"Luigi Di Donato","registered_at":"2026-06-16T04:46:34Z","symbol":"NIM0941813","token_address":"0x21f50657b6ed3b2bc16950830da53f47c78aad1e","type":"artist","uuid":"2bc7bdc0-4274-44eb-b04a-8ca827e30e1d"}
track: Samson HWV 57, Act II, Scene 4: IV. Duet. "Go, Baffled Coward, Go" - "Presume No on Thy God"
track: Samson HWV 57, Act I, Scene 3: I. Air. "Thy Glorious Deeds Inspir'd My Tongue"
track: Samson HWV 57, Act I, Scene 3: II. Accompagnato. "To Sorrow Now I Tune"
track: Samson HWV 57, Act II, Scene 1: I. Recitative and Air. "Trust yet in God! - Return, O God of Hosts! Behold"
track: Samson HWV 57, Act II, Scene 4: II. Air. "Honour and Arms Scorn Such a Foe"

Samson HWV 57, Act II, Scene 4: IV. Duet. "Go, Baffled Coward, Go" - "Presume No on Thy God"
type: MusicRecording
duration: PT2M2S
duration ms: 122333
explicit: false
by artist: George Frideric Handel
by artist: Millenium Orchestra
by artist: Leonardo García-Alarcón
by artist: Matthew Newlin
by artist: Luigi Di Donato
in album: Handel: Samson
  type: MusicAlbum
  date published: 2020-08-14
popularity: 1
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
isrc code: BER181941135
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T15:41:29+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc703cc6970f4d61788fbf71d0127dae7609a73fe5af2240d986a5bdf7550c88a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER181941135
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
  type: PropertyValue
  value: true
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 0xc703cc6970f4d61788fbf71d0127dae7609a73fe5af2240d986a5bdf7550c88a. 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/BER181941135.
  date published: 2026-07-08T03:53:27Z
audio: Samson HWV 57, Act II, Scene 4: IV. Duet. "Go, Baffled Coward, Go" - "Presume No on Thy God"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.798
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.583
  additional property: Energy
    type: PropertyValue
    value: 0.508
  additional property: Speechiness
    type: PropertyValue
    value: 0.04
  additional property: Acousticness
    type: PropertyValue
    value: 0.954
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.737
  additional property: Liveness
    type: PropertyValue
    value: 0.217
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.862
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.75
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Samson HWV 57, Act I, Scene 3: I. Air. "Thy Glorious Deeds Inspir'd My Tongue"
type: MusicRecording
duration: PT1M45S
duration ms: 105733
explicit: false
by artist: George Frideric Handel
by artist: Millenium Orchestra
by artist: Leonardo García-Alarcón
by artist: Lawrence Zazzo
by artist: Luigi Di Donato
in album: Handel: Samson
  type: MusicAlbum
  date published: 2020-08-14
popularity: 1
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c4ff0ef2ce8675723c80a7f52b09cbda64dd2c43ea0795e00912c42fd0d3fe1. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BER181941113.
  date published: 2026-08-01T03:13:03Z
audio: Samson HWV 57, Act I, Scene 3: I. Air. "Thy Glorious Deeds Inspir'd My Tongue"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 142.532
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.36
  additional property: Energy
    type: PropertyValue
    value: 0.406
  additional property: Speechiness
    type: PropertyValue
    value: 0.043
  additional property: Acousticness
    type: PropertyValue
    value: 0.978
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.911
  additional property: Liveness
    type: PropertyValue
    value: 0.423
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.777
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.136
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: BER181941113
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960500
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T03:13:03+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER181941113
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960500
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T03:13:03+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 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

Samson HWV 57, Act I, Scene 3: II. Accompagnato. "To Sorrow Now I Tune"
type: MusicRecording
duration: PT2M4S
duration ms: 124360
explicit: false
by artist: George Frideric Handel
by artist: Millenium Orchestra
by artist: Leonardo García-Alarcón
by artist: Luigi Di Donato
in album: Handel: Samson
  type: MusicAlbum
  date published: 2020-08-14
popularity: 1
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bd0384a42bb2b6032ce826c8f688bd69f58050850f49f975fe24aee2b8ce5c. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BER181941114.
  date published: 2026-08-01T01:44:32Z
audio: Samson HWV 57, Act I, Scene 3: II. Accompagnato. "To Sorrow Now I Tune"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.099
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.272
  additional property: Energy
    type: PropertyValue
    value: 0.12
  additional property: Speechiness
    type: PropertyValue
    value: 0.041
  additional property: Acousticness
    type: PropertyValue
    value: 0.968
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.773
  additional property: Liveness
    type: PropertyValue
    value: 0.113
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.071
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.073
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: BER181941114
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960494
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T01:44:32+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER181941114
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960494
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960494
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T01:44:32+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 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

Samson HWV 57, Act II, Scene 1: I. Recitative and Air. "Trust yet in God! - Return, O God of Hosts! Behold"
type: MusicRecording
duration: PT7M46S
duration ms: 466106
explicit: false
by artist: George Frideric Handel
by artist: Millenium Orchestra
by artist: Chœur De Chambre De Namur
by artist: Leonardo García-Alarcón
by artist: Matthew Newlin
by artist: Lawrence Zazzo
by artist: Luigi Di Donato
in album: Handel: Samson
  type: MusicAlbum
  date published: 2020-08-14
popularity: 1
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3dff6a38d376323117ce05fc6d5c84bd332f28ffbbb5663b5973ae9e3d9967. 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/BER181941118.
  date published: 2026-07-31T19:53:13Z
audio: Samson HWV 57, Act II, Scene 1: I. Recitative and Air. "Trust yet in God! - Return, O God of Hosts! Behold"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.978
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.198
  additional property: Energy
    type: PropertyValue
    value: 0.111
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.942
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.145
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.65
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: BER181941118
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960455
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T19:53:13+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER181941118
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960455
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960455
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T19:53:13+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 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

Samson HWV 57, Act II, Scene 4: II. Air. "Honour and Arms Scorn Such a Foe"
type: MusicRecording
duration: PT4M16S
duration ms: 256293
explicit: false
by artist: George Frideric Handel
by artist: Millenium Orchestra
by artist: Leonardo García-Alarcón
by artist: Luigi Di Donato
in album: Handel: Samson
  type: MusicAlbum
  date published: 2020-08-14
popularity: 1
genre: classical
genre: early-music
genre: baroque
genre: english-baroque
genre: german-baroque
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d64857ec4907ef708438287db2713bd3cb6c9fd943d9e4ed8dbc6544f43ce6. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/BER181941133.
  date published: 2026-08-01T00:10:46Z
audio: Samson HWV 57, Act II, Scene 4: II. Air. "Honour and Arms Scorn Such a Foe"
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 133.35
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.503
  additional property: Energy
    type: PropertyValue
    value: 0.352
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.979
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.237
  additional property: Liveness
    type: PropertyValue
    value: 0.227
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.657
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.79
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: BER181941133
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 960485
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-08-01T00:10:46+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BER181941133
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960485
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960485
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-08-01T00:10:46+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 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