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type: MusicGroup
genre: classical
popularity: 49
followers: 1148
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/85e3ac77-d626-4b40-8ca9-b745185d53a6.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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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 → block must exist at that height 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 0x10681d32921402b100e6844b6d2e38cc3f7af4c21efdc99742cf9657ac27193e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85e3ac77-d626-4b40-8ca9-b745185d53a6.json and https://artists.proofprofile.net/proofs/artist/85e3ac77-d626-4b40-8ca9-b745185d53a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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track: Requiem in D Minor, K. 626: Sequence: VI. Lacrimosa dies illa
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  by artist: Wolfgang Amadeus Mozart
  by artist: Magdaléna Hajóssyová
  by artist: Jaroslava Horska
  by artist: Jozef Kundlák
  by artist: Peter Mikulas
  by artist: Vladimir Ruso
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Philharmonic Orchestra
  by artist: Zdeněk Košler
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    date published: 2024-10-04
track: Requiem in D Minor, K. 626: Sequence: I. Dies irae
  type: MusicRecording
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  by artist: Wolfgang Amadeus Mozart
  by artist: Magdaléna Hajóssyová
  by artist: Jaroslava Horska
  by artist: Jozef Kundlák
  by artist: Peter Mikulas
  by artist: Vladimir Ruso
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Philharmonic Orchestra
  by artist: Zdeněk Košler
  in album: The Essential Mozart
    type: MusicAlbum
    date published: 2024-10-04
track: Requiem in D Minor, K. 626: Sequence: VI. Lacrimosa dies illa
  type: MusicRecording
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  by artist: Wolfgang Amadeus Mozart
  by artist: Magdaléna Hajóssyová
  by artist: Jaroslava Horska
  by artist: Jozef Kundlák
  by artist: Peter Mikulas
  by artist: Vladimir Ruso
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Philharmonic Orchestra
  by artist: Zdeněk Košler
  in album: Melancholy Classical
    type: MusicAlbum
    date published: 2024-07-05
track: Requiem in D Minor, K. 626: Sequence: VI. Lacrimosa dies illa
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199840
  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Magdaléna Hajóssyová
  by artist: Jaroslava Horska
  by artist: Jozef Kundlák
  by artist: Peter Mikulas
  by artist: Vladimir Ruso
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Philharmonic Orchestra
  by artist: Zdeněk Košler
  in album: Solemn Classical
    type: MusicAlbum
    date published: 2024-07-12
track: Requiem in D Minor, K. 626: Benedictus
  type: MusicRecording
  duration: PT5M44S
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  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Magdaléna Hajóssyová
  by artist: Jaroslava Horska
  by artist: Jozef Kundlák
  by artist: Peter Mikulas
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Philharmonic
  by artist: Zdeněk Košler
  in album: Chill With Mozart
    type: MusicAlbum
    date published: 2021-07-02
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  additional property: CopyrightStatus
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  additional property: OTSRecordURL
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    value: https://artists.proofprofile.net/proofs/track/1SPpQyN6M9WapzFheOLQxV.json
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1SPpQyN6M9WapzFheOLQxV
  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x1fc22cba164cda6c66760260d6e319f8958e4fce67ddab30fa6f7bed7c9cc7cd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1SPpQyN6M9WapzFheOLQxV.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1SPpQyN6M9WapzFheOLQxV.
    date published: 2026-07-08T03:22:41Z
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track: Requiem in D Minor, K. 626: Kyrie eleison
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  explicit: false
  by artist: Wolfgang Amadeus Mozart
  by artist: Magdaléna Hajóssyová
  by artist: Jaroslava Horska
  by artist: Jozef Kundlák
  by artist: Peter Mikulas
  by artist: Slovak Philharmonic Chorus
  by artist: Slovak Philharmonic
  by artist: Vladimir Ruso
  by artist: Zdeněk Košler
  in album: My First Mozart Album
    type: MusicAlbum
    date published: 2011-11-01
track: Requiem In D Minor, K. 626: Introit: Requiem Aeternam
  type: MusicRecording
  duration: PT5M2S
  duration ms: 302666
  explicit: false
  by artist: Slovak Philharmonic
  by artist: Magdaléna Hajóssyová
  by artist: Slovak Philharmonic Chorus
  by artist: Vladimir Ruso
  by artist: Stefan Klimo
  by artist: Jozef Kundlák
  by artist: Peter Mikulas
  by artist: Jaroslava Horska
  by artist: Wolfgang Amadeus Mozart
  in album: Mozart: Requiem In D Minor
    type: MusicAlbum
    date published: 1989-04-15
  isrc code: HKI199278101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSCanonicalRecord
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
track: Requiem In D Minor, K. 626: Kyrie Eleison
track: Requiem In D Minor, K. 626: Sequence: I. Dies Irae
track: Requiem In D Minor, K. 626: Sequence: II. Tuba Mirum
track: Requiem In D Minor, K. 626: Sequence: III. Rex Tremendae Majestatis
track: Requiem In D Minor, K. 626: Sequence: IV. Recordare, Jesu Pie
track: Requiem In D Minor, K. 626: Sequence: V. Confutatis Maledictis
track: Requiem In D Minor, K. 626: Sequence: VI. Lacrimosa Dies Illa
track: Requiem In D Minor, K. 626: Offertory: I. Domine Jesu Christe
track: Requiem In D Minor, K. 626: Offertory: II. Hostias Et Preces
track: Requiem In D Minor, K. 626: Sanctus
track: Requiem In D Minor, K. 626: Benedictus
track: Requiem In D Minor, K. 626: Agnus Dei
track: Requiem In D Minor, K. 626: Communion: Lux Aeterna

CopyrightRegisteredAt
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value: 2026-06-05T09:02:57+00:00

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0x4f143e5c2c16c548859767567fffda1d608365fb1228761f40e4e7e32375ed4b

OTSHash
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OTSBitcoinBlock
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value: 953513

OTSBitcoinBlockVerifyURL
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value: https://blockstream.info/api/block/953513

OTSRecordURL
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value: https://artists.proofprofile.net/proofs/track/6e7lvDgvrNCmXmGAVXGKhG.json

OTSVerificationAPI
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value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6e7lvDgvrNCmXmGAVXGKhG

OTSTimestamp
type: PropertyValue
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OTSCanonicalRecord
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value: {"copyright_id":"0x4f143e5c2c16c548859767567fffda1d608365fb1228761f40e4e7e32375ed4b","isrc":"HKI199278101","name":"Requiem In D Minor, K. 626: Introit: Requiem Aeternam","registered_at":"2026-06-05T09:02:57Z","spotify_id":"6e7lvDgvrNCmXmGAVXGKhG","type":"track"}

OTSVerifyInstructions
type: PropertyValue
value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f143e5c2c16c548859767567fffda1d608365fb1228761f40e4e7e32375ed4b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6e7lvDgvrNCmXmGAVXGKhG.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6e7lvDgvrNCmXmGAVXGKhG.
date published: 2026-06-13T12:47:07Z
text: {"copyright_id":"0x4f143e5c2c16c548859767567fffda1d608365fb1228761f40e4e7e32375ed4b","isrc":"HKI199278101","name":"Requiem In D Minor, K. 626: Introit: Requiem Aeternam","registered_at":"2026-06-05T09:02:57Z","spotify_id":"6e7lvDgvrNCmXmGAVXGKhG","type":"track"}

Requiem In D Minor, K. 626: Kyrie Eleison
type: MusicRecording
duration: PT2M44S
duration ms: 164000
explicit: false
by artist: Slovak Philharmonic
by artist: Jozef Kundlák
by artist: Slovak Philharmonic Chorus
by artist: Jaroslava Horska
by artist: Vladimir Ruso
by artist: Stefan Klimo
by artist: Peter Mikulas
by artist: Magdaléna Hajóssyová
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278102
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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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: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6w9eBsnjGEYLqzsR3LJt42.json
additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6w9eBsnjGEYLqzsR3LJt42
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb3cf7a55b765e192e9288f8da4f4b8f4745a6e6f74698080f3183dcc3751ebc6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6w9eBsnjGEYLqzsR3LJt42.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6w9eBsnjGEYLqzsR3LJt42.
  date published: 2026-06-13T17:25:41Z
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Requiem In D Minor, K. 626: Sequence: I. Dies Irae
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duration: PT1M46S
duration ms: 106133
explicit: false
by artist: Slovak Philharmonic
by artist: Magdaléna Hajóssyová
by artist: Peter Mikulas
by artist: Vladimir Ruso
by artist: Jaroslava Horska
by artist: Jozef Kundlák
by artist: Stefan Klimo
by artist: Slovak Philharmonic Chorus
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
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isrc code: HKI199278103
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2RVry0sPmDSZxnna3HAw7g
additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xd38c9655f9911f653b719444401f47b6306c44385d1f9a8bab96fcb890fa6915. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2RVry0sPmDSZxnna3HAw7g.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2RVry0sPmDSZxnna3HAw7g.
  date published: 2026-06-13T12:53:06Z
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Requiem In D Minor, K. 626: Sequence: II. Tuba Mirum
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duration: PT4M16S
duration ms: 256866
explicit: false
by artist: Slovak Philharmonic
by artist: Jozef Kundlák
by artist: Slovak Philharmonic Chorus
by artist: Vladimir Ruso
by artist: Jaroslava Horska
by artist: Magdaléna Hajóssyová
by artist: Stefan Klimo
by artist: Peter Mikulas
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278104
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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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: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xc136943adf2b40e9697141364522ffe932be113488b198f9528db5123c796605. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/01F7A57L6KCok5rh818x2K.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/01F7A57L6KCok5rh818x2K.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0xc136943adf2b40e9697141364522ffe932be113488b198f9528db5123c796605","isrc":"HKI199278104","name":"Requiem In D Minor, K. 626: Sequence: II. Tuba Mirum","registered_at":"2026-06-07T14:17:04Z","spotify_id":"01F7A57L6KCok5rh818x2K","type":"track"}

Requiem In D Minor, K. 626: Sequence: III. Rex Tremendae Majestatis
type: MusicRecording
duration: PT2M20S
duration ms: 140000
explicit: false
by artist: Slovak Philharmonic
by artist: Magdaléna Hajóssyová
by artist: Jozef Kundlák
by artist: Slovak Philharmonic Chorus
by artist: Peter Mikulas
by artist: Jaroslava Horska
by artist: Stefan Klimo
by artist: Vladimir Ruso
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278105
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T13:14:23+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c6f5d76882186b07bc80181ee8c5cda26bdcd820ae992ee88702c6cbc54277a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4qD0EceQ3BVrNFzlMf4cTj.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qD0EceQ3BVrNFzlMf4cTj
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8c6f5d76882186b07bc80181ee8c5cda26bdcd820ae992ee88702c6cbc54277a","isrc":"HKI199278105","name":"Requiem In D Minor, K. 626: Sequence: III. Rex Tremendae Majestatis","registered_at":"2026-06-05T13:14:23Z","spotify_id":"4qD0EceQ3BVrNFzlMf4cTj","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x8c6f5d76882186b07bc80181ee8c5cda26bdcd820ae992ee88702c6cbc54277a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4qD0EceQ3BVrNFzlMf4cTj.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4qD0EceQ3BVrNFzlMf4cTj.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x8c6f5d76882186b07bc80181ee8c5cda26bdcd820ae992ee88702c6cbc54277a","isrc":"HKI199278105","name":"Requiem In D Minor, K. 626: Sequence: III. Rex Tremendae Majestatis","registered_at":"2026-06-05T13:14:23Z","spotify_id":"4qD0EceQ3BVrNFzlMf4cTj","type":"track"}

Requiem In D Minor, K. 626: Sequence: IV. Recordare, Jesu Pie
type: MusicRecording
duration: PT6M27S
duration ms: 387000
explicit: false
by artist: Slovak Philharmonic
by artist: Vladimir Ruso
by artist: Jaroslava Horska
by artist: Slovak Philharmonic Chorus
by artist: Magdaléna Hajóssyová
by artist: Stefan Klimo
by artist: Peter Mikulas
by artist: Jozef Kundlák
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278106
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T01:41:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x803b16ed87aca116afbfeb2cf7d483656bce1a5abc3d2f33909214f739e5e802
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/65qjTV4cGdq3rbaSFgDaZR.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/65qjTV4cGdq3rbaSFgDaZR
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x803b16ed87aca116afbfeb2cf7d483656bce1a5abc3d2f33909214f739e5e802","isrc":"HKI199278106","name":"Requiem In D Minor, K. 626: Sequence: IV. Recordare, Jesu Pie","registered_at":"2026-06-06T01:41:33Z","spotify_id":"65qjTV4cGdq3rbaSFgDaZR","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x803b16ed87aca116afbfeb2cf7d483656bce1a5abc3d2f33909214f739e5e802. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/65qjTV4cGdq3rbaSFgDaZR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/65qjTV4cGdq3rbaSFgDaZR.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x803b16ed87aca116afbfeb2cf7d483656bce1a5abc3d2f33909214f739e5e802","isrc":"HKI199278106","name":"Requiem In D Minor, K. 626: Sequence: IV. Recordare, Jesu Pie","registered_at":"2026-06-06T01:41:33Z","spotify_id":"65qjTV4cGdq3rbaSFgDaZR","type":"track"}

Requiem In D Minor, K. 626: Sequence: V. Confutatis Maledictis
type: MusicRecording
duration: PT3M7S
duration ms: 187000
explicit: false
by artist: Slovak Philharmonic
by artist: Vladimir Ruso
by artist: Slovak Philharmonic Chorus
by artist: Stefan Klimo
by artist: Magdaléna Hajóssyová
by artist: Jaroslava Horska
by artist: Jozef Kundlák
by artist: Peter Mikulas
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278107
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T17:19:14+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99dc386f66731ef810bb9eb357a7fcb4e5507deea27df24dd624de484a08075f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/4yOTeF1PPNxTUC6BEoP7UU.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4yOTeF1PPNxTUC6BEoP7UU
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99dc386f66731ef810bb9eb357a7fcb4e5507deea27df24dd624de484a08075f","isrc":"HKI199278107","name":"Requiem In D Minor, K. 626: Sequence: V. Confutatis Maledictis","registered_at":"2026-06-05T17:19:14Z","spotify_id":"4yOTeF1PPNxTUC6BEoP7UU","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x99dc386f66731ef810bb9eb357a7fcb4e5507deea27df24dd624de484a08075f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4yOTeF1PPNxTUC6BEoP7UU.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/4yOTeF1PPNxTUC6BEoP7UU.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x99dc386f66731ef810bb9eb357a7fcb4e5507deea27df24dd624de484a08075f","isrc":"HKI199278107","name":"Requiem In D Minor, K. 626: Sequence: V. Confutatis Maledictis","registered_at":"2026-06-05T17:19:14Z","spotify_id":"4yOTeF1PPNxTUC6BEoP7UU","type":"track"}

Requiem In D Minor, K. 626: Sequence: VI. Lacrimosa Dies Illa
type: MusicRecording
duration: PT3M18S
duration ms: 198666
explicit: false
by artist: Slovak Philharmonic
by artist: Jaroslava Horska
by artist: Vladimir Ruso
by artist: Peter Mikulas
by artist: Stefan Klimo
by artist: Slovak Philharmonic Chorus
by artist: Jozef Kundlák
by artist: Magdaléna Hajóssyová
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278108
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-02T01:42:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e5602646eb4e2ce652aa09a11c513292aa7e9c10aa2f1742dd0c6e6e8224209
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/08B8Ki7qlUoT58Zd1trxkl.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08B8Ki7qlUoT58Zd1trxkl
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9e5602646eb4e2ce652aa09a11c513292aa7e9c10aa2f1742dd0c6e6e8224209","isrc":"HKI199278108","name":"Requiem In D Minor, K. 626: Sequence: VI. Lacrimosa Dies Illa","registered_at":"2026-06-02T01:42:33Z","spotify_id":"08B8Ki7qlUoT58Zd1trxkl","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x9e5602646eb4e2ce652aa09a11c513292aa7e9c10aa2f1742dd0c6e6e8224209. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/08B8Ki7qlUoT58Zd1trxkl.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08B8Ki7qlUoT58Zd1trxkl.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x9e5602646eb4e2ce652aa09a11c513292aa7e9c10aa2f1742dd0c6e6e8224209","isrc":"HKI199278108","name":"Requiem In D Minor, K. 626: Sequence: VI. Lacrimosa Dies Illa","registered_at":"2026-06-02T01:42:33Z","spotify_id":"08B8Ki7qlUoT58Zd1trxkl","type":"track"}

Requiem In D Minor, K. 626: Offertory: I. Domine Jesu Christe
type: MusicRecording
duration: PT3M34S
duration ms: 214666
explicit: false
by artist: Slovak Philharmonic
by artist: Slovak Philharmonic Chorus
by artist: Vladimir Ruso
by artist: Magdaléna Hajóssyová
by artist: Stefan Klimo
by artist: Peter Mikulas
by artist: Jozef Kundlák
by artist: Jaroslava Horska
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278109
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T17:17:17+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x143dd35a93fc66d7fdb3c2b2b3e27e5e0f9ad79b9753ffa7d5dcbc243068e128
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/3kKETcMRFP76UvK83pW6X9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3kKETcMRFP76UvK83pW6X9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x143dd35a93fc66d7fdb3c2b2b3e27e5e0f9ad79b9753ffa7d5dcbc243068e128","isrc":"HKI199278109","name":"Requiem In D Minor, K. 626: Offertory: I. Domine Jesu Christe","registered_at":"2026-06-05T17:17:17Z","spotify_id":"3kKETcMRFP76UvK83pW6X9","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x143dd35a93fc66d7fdb3c2b2b3e27e5e0f9ad79b9753ffa7d5dcbc243068e128. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3kKETcMRFP76UvK83pW6X9.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3kKETcMRFP76UvK83pW6X9.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0x143dd35a93fc66d7fdb3c2b2b3e27e5e0f9ad79b9753ffa7d5dcbc243068e128","isrc":"HKI199278109","name":"Requiem In D Minor, K. 626: Offertory: I. Domine Jesu Christe","registered_at":"2026-06-05T17:17:17Z","spotify_id":"3kKETcMRFP76UvK83pW6X9","type":"track"}

Requiem In D Minor, K. 626: Offertory: II. Hostias Et Preces
type: MusicRecording
duration: PT4M39S
duration ms: 279333
explicit: false
by artist: Slovak Philharmonic
by artist: Jozef Kundlák
by artist: Magdaléna Hajóssyová
by artist: Peter Mikulas
by artist: Vladimir Ruso
by artist: Slovak Philharmonic Chorus
by artist: Jaroslava Horska
by artist: Stefan Klimo
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278110
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T06:04:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc24aa7b910fa91e47c6b0c4208b29ea4b1c7dceba458a76159d89572e257a64b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953536
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953536
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/08ckBqGpc3lepDgVJiHShh.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08ckBqGpc3lepDgVJiHShh
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T17:25:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc24aa7b910fa91e47c6b0c4208b29ea4b1c7dceba458a76159d89572e257a64b","isrc":"HKI199278110","name":"Requiem In D Minor, K. 626: Offertory: II. Hostias Et Preces","registered_at":"2026-06-06T06:04:42Z","spotify_id":"08ckBqGpc3lepDgVJiHShh","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xc24aa7b910fa91e47c6b0c4208b29ea4b1c7dceba458a76159d89572e257a64b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/08ckBqGpc3lepDgVJiHShh.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/08ckBqGpc3lepDgVJiHShh.
  date published: 2026-06-13T17:25:41Z
  text: {"copyright_id":"0xc24aa7b910fa91e47c6b0c4208b29ea4b1c7dceba458a76159d89572e257a64b","isrc":"HKI199278110","name":"Requiem In D Minor, K. 626: Offertory: II. Hostias Et Preces","registered_at":"2026-06-06T06:04:42Z","spotify_id":"08ckBqGpc3lepDgVJiHShh","type":"track"}

Requiem In D Minor, K. 626: Sanctus
type: MusicRecording
duration: PT1M38S
duration ms: 98000
explicit: false
by artist: Slovak Philharmonic
by artist: Jozef Kundlák
by artist: Jaroslava Horska
by artist: Peter Mikulas
by artist: Slovak Philharmonic Chorus
by artist: Vladimir Ruso
by artist: Stefan Klimo
by artist: Magdaléna Hajóssyová
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278111
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-05T06:41:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcb5047bf98ccce74759a9ac3a29380f8d9a726f15438f70940bd5bec940ea553
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/5OjWZJWyPwC2PREwrVflfc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OjWZJWyPwC2PREwrVflfc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcb5047bf98ccce74759a9ac3a29380f8d9a726f15438f70940bd5bec940ea553","isrc":"HKI199278111","name":"Requiem In D Minor, K. 626: Sanctus","registered_at":"2026-06-05T06:41:28Z","spotify_id":"5OjWZJWyPwC2PREwrVflfc","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xcb5047bf98ccce74759a9ac3a29380f8d9a726f15438f70940bd5bec940ea553. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5OjWZJWyPwC2PREwrVflfc.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/5OjWZJWyPwC2PREwrVflfc.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0xcb5047bf98ccce74759a9ac3a29380f8d9a726f15438f70940bd5bec940ea553","isrc":"HKI199278111","name":"Requiem In D Minor, K. 626: Sanctus","registered_at":"2026-06-05T06:41:28Z","spotify_id":"5OjWZJWyPwC2PREwrVflfc","type":"track"}

Requiem In D Minor, K. 626: Benedictus
type: MusicRecording
duration: PT5M36S
duration ms: 336333
explicit: false
by artist: Slovak Philharmonic
by artist: Vladimir Ruso
by artist: Slovak Philharmonic Chorus
by artist: Magdaléna Hajóssyová
by artist: Jaroslava Horska
by artist: Jozef Kundlák
by artist: Peter Mikulas
by artist: Stefan Klimo
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278112
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T14:16:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fc22cba164cda6c66760260d6e319f8958e4fce67ddab30fa6f7bed7c9cc7cd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953515
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953515
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/6KqE04TC5W08HlCHFmcUpr.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6KqE04TC5W08HlCHFmcUpr
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:53:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1fc22cba164cda6c66760260d6e319f8958e4fce67ddab30fa6f7bed7c9cc7cd","isrc":"HKI199278112","name":"Requiem In D Minor, K. 626: Benedictus","registered_at":"2026-06-07T14:16:22Z","spotify_id":"6KqE04TC5W08HlCHFmcUpr","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x1fc22cba164cda6c66760260d6e319f8958e4fce67ddab30fa6f7bed7c9cc7cd. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6KqE04TC5W08HlCHFmcUpr.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/6KqE04TC5W08HlCHFmcUpr.
  date published: 2026-06-13T12:53:06Z
  text: {"copyright_id":"0x1fc22cba164cda6c66760260d6e319f8958e4fce67ddab30fa6f7bed7c9cc7cd","isrc":"HKI199278112","name":"Requiem In D Minor, K. 626: Benedictus","registered_at":"2026-06-07T14:16:22Z","spotify_id":"6KqE04TC5W08HlCHFmcUpr","type":"track"}

Requiem In D Minor, K. 626: Agnus Dei
type: MusicRecording
duration: PT3M46S
duration ms: 226000
explicit: false
by artist: Slovak Philharmonic
by artist: Peter Mikulas
by artist: Magdaléna Hajóssyová
by artist: Slovak Philharmonic Chorus
by artist: Jozef Kundlák
by artist: Jaroslava Horska
by artist: Vladimir Ruso
by artist: Stefan Klimo
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278113
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-06T11:25:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5110b06f89c1abb8ef8100be5996d85783f1567d8e4c95c23ecd4103b25d4e2a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953513
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/2nWY8LAqAJUh2nnrhxsAQD.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2nWY8LAqAJUh2nnrhxsAQD
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T12:47:07Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5110b06f89c1abb8ef8100be5996d85783f1567d8e4c95c23ecd4103b25d4e2a","isrc":"HKI199278113","name":"Requiem In D Minor, K. 626: Agnus Dei","registered_at":"2026-06-06T11:25:27Z","spotify_id":"2nWY8LAqAJUh2nnrhxsAQD","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0x5110b06f89c1abb8ef8100be5996d85783f1567d8e4c95c23ecd4103b25d4e2a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2nWY8LAqAJUh2nnrhxsAQD.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2nWY8LAqAJUh2nnrhxsAQD.
  date published: 2026-06-13T12:47:07Z
  text: {"copyright_id":"0x5110b06f89c1abb8ef8100be5996d85783f1567d8e4c95c23ecd4103b25d4e2a","isrc":"HKI199278113","name":"Requiem In D Minor, K. 626: Agnus Dei","registered_at":"2026-06-06T11:25:27Z","spotify_id":"2nWY8LAqAJUh2nnrhxsAQD","type":"track"}

Requiem In D Minor, K. 626: Communion: Lux Aeterna
type: MusicRecording
duration: PT5M48S
duration ms: 348266
explicit: false
by artist: Slovak Philharmonic
by artist: Jozef Kundlák
by artist: Jaroslava Horska
by artist: Peter Mikulas
by artist: Stefan Klimo
by artist: Slovak Philharmonic Chorus
by artist: Vladimir Ruso
by artist: Magdaléna Hajóssyová
by artist: Wolfgang Amadeus Mozart
in album: Mozart: Requiem In D Minor
  type: MusicAlbum
  date published: 1989-04-15
isrc code: HKI199278114
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T08:06:10+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb9d16badce4dac73eccdf5a2f0d97fd59f2fa85e8dce57fd9d45b8247bc5fd90
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953528
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/track/7DIrMFnfrUhk8Xn9vrXnKA.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7DIrMFnfrUhk8Xn9vrXnKA
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb9d16badce4dac73eccdf5a2f0d97fd59f2fa85e8dce57fd9d45b8247bc5fd90","isrc":"HKI199278114","name":"Requiem In D Minor, K. 626: Communion: Lux Aeterna","registered_at":"2026-06-07T08:06:10Z","spotify_id":"7DIrMFnfrUhk8Xn9vrXnKA","type":"track"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. 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 0xb9d16badce4dac73eccdf5a2f0d97fd59f2fa85e8dce57fd9d45b8247bc5fd90. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7DIrMFnfrUhk8Xn9vrXnKA.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/7DIrMFnfrUhk8Xn9vrXnKA.
  date published: 2026-06-13T15:41:10Z
  text: {"copyright_id":"0xb9d16badce4dac73eccdf5a2f0d97fd59f2fa85e8dce57fd9d45b8247bc5fd90","isrc":"HKI199278114","name":"Requiem In D Minor, K. 626: Communion: Lux Aeterna","registered_at":"2026-06-07T08:06:10Z","spotify_id":"7DIrMFnfrUhk8Xn9vrXnKA","type":"track"}