Lea Bertucci
type: MusicGroup
genre: drone
genre: experimental
popularity: 6
followers: 4404
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x72ae3ccd289279a873a3c58f4bec946657aea119463532b55810cce167d32f8b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954048
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954048
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41e39c6a-829e-4e3d-93bc-6d528dc48bf7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41e39c6a-829e-4e3d-93bc-6d528dc48bf7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41e39c6a-829e-4e3d-93bc-6d528dc48bf7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:00:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x72ae3ccd289279a873a3c58f4bec946657aea119463532b55810cce167d32f8b","name":"Lea Bertucci","registered_at":"2026-06-16T12:31:43Z","symbol":"NIM1052840","token_address":"0xff85d0da2877cc516aa1ebce8abc55a4fe483b97","type":"artist","uuid":"41e39c6a-829e-4e3d-93bc-6d528dc48bf7"}
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 0x72ae3ccd289279a873a3c58f4bec946657aea119463532b55810cce167d32f8b. Chain 2 (Bitcoin): anchored in block 954048 (2026-06-17T05:00:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41e39c6a-829e-4e3d-93bc-6d528dc48bf7.json and https://artists.proofprofile.net/proofs/artist/41e39c6a-829e-4e3d-93bc-6d528dc48bf7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:00:13Z
  text: {"copyright_id":"0x72ae3ccd289279a873a3c58f4bec946657aea119463532b55810cce167d32f8b","name":"Lea Bertucci","registered_at":"2026-06-16T12:31:43Z","symbol":"NIM1052840","token_address":"0xff85d0da2877cc516aa1ebce8abc55a4fe483b97","type":"artist","uuid":"41e39c6a-829e-4e3d-93bc-6d528dc48bf7"}
album: All That Is Solid Melts Into Air
  type: MusicAlbum
  date published: 2017-03-24
album: All That Is Solid Melts Into Air
  type: MusicAlbum
  date published: 2017-03-24
album: All That Is Solid Melts Into Air
  type: MusicAlbum
  date published: 2017-03-24
album: Metal Aether
  type: MusicAlbum
  date published: 2018-02-09
album: Metal Aether
  type: MusicAlbum
  date published: 2018-02-09
album: Metal Aether
  type: MusicAlbum
  date published: 2018-02-09
album: Warp and Weft
  type: MusicAlbum
  date published: 2019-06-25
album: Warp and Weft
  type: MusicAlbum
  date published: 2019-06-25
album: Resonant Field
  type: MusicAlbum
  date published: 2019-07-19
album: Resonant Field
  type: MusicAlbum
  date published: 2019-07-19
album: Acoustic Shadows
  type: MusicAlbum
  date published: 2020-04-15
album: Acoustic Shadows
  type: MusicAlbum
  date published: 2020-04-15
album: Acoustic Shadows
  type: MusicAlbum
  date published: 2020-04-15
album: On Opposite Sides of Sleep
  type: MusicAlbum
  date published: 2021-02-23
album: An Arc of the Horizon
  type: MusicAlbum
  date published: 2021-03-23
album: Tulsa
  type: MusicAlbum
  date published: 2022-11-17
album: Xtended Vox
  type: MusicAlbum
  date published: 2022-12-08
album: Of Shadow and Substance (Radio Edit)
  type: MusicAlbum
  date published: 2023-12-01
track: Strata
track: Amorphic Foothills
track: Dust Storm
track: Geology Of Fire
track: A Fissure Exhales

Strata
type: MusicRecording
duration: PT7M7S
duration ms: 427250
explicit: false
by artist: Lawrence English
by artist: Lea Bertucci
in album: Chthonic
  type: MusicAlbum
  date published: 2023-08-11
genre: ambient
genre: australian-experimental
genre: sound-art
genre: drone
genre: australian-ambient
genre: field-recording
genre: field-recording-ambient
genre: lowercase
isrc code: QZS832300049
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-07T08:28:47+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9a8432d4af3ba78b3d39bde603b7217fcac44fd38ed4f6e3b47261c19caf136
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/QZS832300049
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0xb9a8432d4af3ba78b3d39bde603b7217fcac44fd38ed4f6e3b47261c19caf136. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZS832300049.
  date published: 2026-07-08T03:20:19Z
audio: Strata
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 143.899
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.181
  additional property: Energy
    type: PropertyValue
    value: 0.441
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.676
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.99
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.034
  additional property: Loudness (dB)
    type: PropertyValue
    value: -19.325
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Amorphic Foothills
type: MusicRecording
duration: PT5M12S
duration ms: 312796
explicit: false
by artist: Lawrence English
by artist: Lea Bertucci
in album: Chthonic
  type: MusicAlbum
  date published: 2023-08-11
genre: ambient
genre: australian-experimental
genre: sound-art
genre: drone
genre: australian-ambient
genre: field-recording
genre: field-recording-ambient
genre: lowercase
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4e07735f4e6744b622bab7379949bffe9cb9116ae140309218789193223096. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZS832300045.
  date published: 2026-07-30T05:15:54Z
audio: Amorphic Foothills
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 106.073
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.107
  additional property: Energy
    type: PropertyValue
    value: 0.677
  additional property: Speechiness
    type: PropertyValue
    value: 0.148
  additional property: Acousticness
    type: PropertyValue
    value: 0.55
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.841
  additional property: Liveness
    type: PropertyValue
    value: 0.258
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.826
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: QZS832300045
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: 960209
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T05:15:54+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS832300045
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960209
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54+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

Dust Storm
type: MusicRecording
duration: PT8M15S
duration ms: 495263
explicit: false
by artist: Lawrence English
by artist: Lea Bertucci
in album: Chthonic
  type: MusicAlbum
  date published: 2023-08-11
genre: ambient
genre: australian-experimental
genre: sound-art
genre: drone
genre: australian-ambient
genre: field-recording
genre: field-recording-ambient
genre: lowercase
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f122b873daad659025d58f1333ca565bd18e7f1dc9dbe1e75a5f2216a16c48c. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZS832300046.
  date published: 2026-07-30T21:35:24Z
audio: Dust Storm
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.224
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.183
  additional property: Energy
    type: PropertyValue
    value: 0.803
  additional property: Speechiness
    type: PropertyValue
    value: 0.121
  additional property: Acousticness
    type: PropertyValue
    value: 0.192
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.843
  additional property: Liveness
    type: PropertyValue
    value: 0.465
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.016
  additional property: Loudness (dB)
    type: PropertyValue
    value: -18.638
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: QZS832300046
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: 960317
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T21:35:24+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS832300046
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960317
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960317
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T21:35:24+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

Geology Of Fire
type: MusicRecording
duration: PT5M11S
duration ms: 311412
explicit: false
by artist: Lawrence English
by artist: Lea Bertucci
in album: Chthonic
  type: MusicAlbum
  date published: 2023-08-11
genre: ambient
genre: australian-experimental
genre: sound-art
genre: drone
genre: australian-ambient
genre: field-recording
genre: field-recording-ambient
genre: lowercase
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93cbf40a4a9b52313804c8cc86d28834495e1b631b63f94950362f316cce437b. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QZS832300047.
  date published: 2026-07-31T06:58:00Z
audio: Geology Of Fire
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.009
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.069
  additional property: Energy
    type: PropertyValue
    value: 0.948
  additional property: Speechiness
    type: PropertyValue
    value: 0.129
  additional property: Acousticness
    type: PropertyValue
    value: 0.897
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.837
  additional property: Liveness
    type: PropertyValue
    value: 0.151
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.022
  additional property: Loudness (dB)
    type: PropertyValue
    value: -16.95
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: QZS832300047
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: 960362
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T06:58:00+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS832300047
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960362
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960362
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T06:58:00+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

A Fissure Exhales
type: MusicRecording
duration: PT12M25S
duration ms: 745397
explicit: false
by artist: Lawrence English
by artist: Lea Bertucci
in album: Chthonic
  type: MusicAlbum
  date published: 2023-08-11
genre: ambient
genre: australian-experimental
genre: sound-art
genre: drone
genre: australian-ambient
genre: field-recording
genre: field-recording-ambient
genre: lowercase
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7ba6d7c0097a134f6844f2c215a4b5b20047e9082abc5add3c530d5bcd45ae4. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/QZS832300048.
  date published: 2026-07-31T13:26:30Z
audio: A Fissure Exhales
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 102.801
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.1
  additional property: Energy
    type: PropertyValue
    value: 0.627
  additional property: Speechiness
    type: PropertyValue
    value: 0.362
  additional property: Acousticness
    type: PropertyValue
    value: 0.681
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.796
  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.036
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.182
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: QZS832300048
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: 960407
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T13:26:30+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS832300048
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960407
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T13:26:30+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