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type: MusicGroup
genre: choral
popularity: 6
additional property: CopyrightID
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: OTSProofURL
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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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track: Stabat mater dolorosa
track: Stabat Mater, Op. 58, B. 71: Eia, mater
track: Stabat Mater, Op. 58, B. 71: Fac ut ardeat cor meum
track: Stabat Mater, Op. 58, B. 71: Virgo virginum praeclara
track: Stabat Mater, Op. 58, B. 71: Inflammatus et accensus
track: Stabat Mater, Op. 58, B. 71: Quando corpus morietur
track: Stabat Mater, Op. 58, B. 71: Quis est homo?
track: Stabat Mater, Op. 58, B. 71: Tui nati vulnerati
track: Stabat Mater, Op. 58, B. 71: Fac ut portem Christi mortem
track: Psalm 149, Op. 79, B. 91: Psalm CXLIX, Op. 79

Stabat mater dolorosa
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duration ms: 1159933
explicit: false
by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
  type: MusicAlbum
  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: HKI190114901
additional property: CopyrightID
additional property: CopyrightStatus
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  value: registered
additional property: CopyrightRegisteredAt
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08Z
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
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T03:55:08Z
audio: Stabat mater dolorosa
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  additional property: Tempo (BPM)
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Stabat Mater, Op. 58, B. 71: Eia, mater
type: MusicRecording
duration: PT7M10S
duration ms: 430466
explicit: false
by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
  type: MusicAlbum
  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: HKI190114903
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
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additional property: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f3c2e9a633e3f5dbe98d33ab713861994d555a4874667ab0575bcc0800f5c08. 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/HKI190114903.
  date published: 2026-07-08T08:56:20Z
audio: Stabat Mater, Op. 58, B. 71: Eia, mater
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  additional property: Acousticness
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  additional property: Liveness
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Stabat Mater, Op. 58, B. 71: Fac ut ardeat cor meum
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duration: PT8M23S
duration ms: 503533
explicit: false
by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
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  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: HKI190114904
additional property: CopyrightID
additional property: CopyrightStatus
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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
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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
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  date published: 2026-07-08T03:22:41Z
audio: Stabat Mater, Op. 58, B. 71: Fac ut ardeat cor meum
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  additional property: Acousticness
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  additional property: Liveness
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Stabat Mater, Op. 58, B. 71: Virgo virginum praeclara
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duration: PT6M37S
duration ms: 397066
explicit: false
by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
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  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
isrc code: HKI190114907
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Stabat Mater, Op. 58, B. 71: Virgo virginum praeclara
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Stabat Mater, Op. 58, B. 71: Inflammatus et accensus
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by artist: Antonín Dvořák
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by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
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  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
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additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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: BitcoinTime
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-02T05:09:12Z
audio: Stabat Mater, Op. 58, B. 71: Inflammatus et accensus
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Stabat Mater, Op. 58, B. 71: Quando corpus morietur
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by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
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genre: classical
genre: late-romantic-era
genre: czech-classical
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bf9f76c5cbbc293bca72763757897f6e4905ef2048238af90bcc2a9d564569. 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/HKI190116003.
  date published: 2026-07-08T03:22:41Z
audio: Stabat Mater, Op. 58, B. 71: Quando corpus morietur
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Stabat Mater, Op. 58, B. 71: Quis est homo?
type: MusicRecording
duration: PT9M33S
duration ms: 573960
explicit: false
by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
  type: MusicAlbum
  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cbc025fe2200acd3b68f0b8da917205ef1de6d8b2516bf117bf53b8b5959b1. 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/HKI190114902.
  date published: 2026-07-31T19:53:13Z
audio: Stabat Mater, Op. 58, B. 71: Quis est homo?
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  additional property: Valence (Positivity)
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  additional property: Key Name
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isrc code: HKI190114902
additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
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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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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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

Stabat Mater, Op. 58, B. 71: Tui nati vulnerati
type: MusicRecording
duration: PT5M24S
duration ms: 324200
explicit: false
by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
  type: MusicAlbum
  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea9a6a7253cc597b4414bd1691da10eba120684a0ba21de3c55210f379427fb. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI190114905.
  date published: 2026-07-31T17:29:52Z
audio: Stabat Mater, Op. 58, B. 71: Tui nati vulnerati
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additional property: CopyrightID
additional property: ProofProfileEvidenceStatus
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additional property: TokenDeploymentConfirmed
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additional property: ContentHash
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additional property: BitcoinTime
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additional property: OTSVerificationAPI
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additional property: OTSHash
additional property: OTSBitcoinBlock
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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

Stabat Mater, Op. 58, B. 71: Fac ut portem Christi mortem
type: MusicRecording
duration: PT5M13S
duration ms: 313800
explicit: false
by artist: Antonín Dvořák
by artist: Christine Brewer
by artist: Marietta Simpson
by artist: John Aler
by artist: Ding Gao
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
  type: MusicAlbum
  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe587531924bf4ee4de3bcf442f78e73180cafb619e41946257ed3454ad9e60b9. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/HKI190116001.
  date published: 2026-07-31T18:48:12Z
audio: Stabat Mater, Op. 58, B. 71: Fac ut portem Christi mortem
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.249
  additional property: Energy
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  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
    type: PropertyValue
    value: 0.023
  additional property: Liveness
    type: PropertyValue
    value: 0.097
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.038
  additional property: Loudness (dB)
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  additional property: Key Name
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isrc code: HKI190116001
additional property: CopyrightID
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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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
  type: PropertyValue
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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

Psalm 149, Op. 79, B. 91: Psalm CXLIX, Op. 79
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duration: PT8M46S
duration ms: 526293
explicit: false
by artist: Antonín Dvořák
by artist: John Aler
by artist: Christine Brewer
by artist: Ding Gao
by artist: Marietta Simpson
by artist: The Washington Chorus
by artist: Washington Orchestra
by artist: Robert Shafer
in album: Dvorak: Stabat Mater / Psalm 149
  type: MusicAlbum
  date published: 2002-08-12
genre: classical
genre: late-romantic-era
genre: czech-classical
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5225a4af6e837d50034956fd1cecbcf225080b3e4b08de5c951c5b54c3a25f21. 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/HKI190116004.
  date published: 2026-08-01T01:44:32Z
audio: Psalm 149, Op. 79, B. 91: Psalm CXLIX, Op. 79
  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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    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
    type: PropertyValue
    value: 0.961
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.748
  additional property: Liveness
    type: PropertyValue
    value: 0.073
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.14
  additional property: Loudness (dB)
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isrc code: HKI190116004
additional property: CopyrightID
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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additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI190116004
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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