Marcel Sebastian Kaufmann
type: MusicGroup
popularity: 40
followers: 6054
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb43931236b99b1905c0f20e15033bed5a8c43a7d696a33c0c86ed4380a39f561
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/70a945c8-d7b5-4c33-9dcd-43874ed74541.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/70a945c8-d7b5-4c33-9dcd-43874ed74541.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/70a945c8-d7b5-4c33-9dcd-43874ed74541
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb43931236b99b1905c0f20e15033bed5a8c43a7d696a33c0c86ed4380a39f561","name":"Marcel Sebastian Kaufmann","registered_at":"2026-06-12T00:39:28Z","symbol":"NIM0144918","token_address":"0xccbceae8ed2a9bc71577aa995919c4e8b095b564","type":"artist","uuid":"70a945c8-d7b5-4c33-9dcd-43874ed74541"}
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 0xb43931236b99b1905c0f20e15033bed5a8c43a7d696a33c0c86ed4380a39f561. 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/70a945c8-d7b5-4c33-9dcd-43874ed74541.json and https://artists.proofprofile.net/proofs/artist/70a945c8-d7b5-4c33-9dcd-43874ed74541.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb43931236b99b1905c0f20e15033bed5a8c43a7d696a33c0c86ed4380a39f561","name":"Marcel Sebastian Kaufmann","registered_at":"2026-06-12T00:39:28Z","symbol":"NIM0144918","token_address":"0xccbceae8ed2a9bc71577aa995919c4e8b095b564","type":"artist","uuid":"70a945c8-d7b5-4c33-9dcd-43874ed74541"}
album: Lovers Past
  type: MusicAlbum
  date published: 2024-01-12
  track: Lovers Past
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162219
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Lovers Past
      type: MusicAlbum
      date published: 2024-01-12
    isrc code: DGA0P2314291
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:05:56+00:00
album: This Morning With You
  type: MusicAlbum
  date published: 2024-02-02
  track: This Morning With You
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159212
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: This Morning With You
      type: MusicAlbum
      date published: 2024-02-02
    isrc code: DGA0Q2346572
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T10:20:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1dcca59ce603a76b95d79a6a24587d7a5f169bf0437726f3cf2166bbd66e9119
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2346572
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcca59ce603a76b95d79a6a24587d7a5f169bf0437726f3cf2166bbd66e9119. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA0Q2346572.
      date published: 2026-07-05T18:48:28Z
album: Back To Earth
  type: MusicAlbum
  date published: 2024-02-23
  track: Back To Earth
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159085
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Back To Earth
      type: MusicAlbum
      date published: 2024-02-23
album: Moonlit Flight
  type: MusicAlbum
  date published: 2024-03-15
  track: Moonlit Flight
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147812
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Moonlit Flight
      type: MusicAlbum
      date published: 2024-03-15
    isrc code: DGA0Q2346561
album: Thousand Times And Again
  type: MusicAlbum
  date published: 2024-04-05
  track: Thousand Times And Again
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145602
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Thousand Times And Again
      type: MusicAlbum
      date published: 2024-04-05
album: Wasted Waters
  type: MusicAlbum
  date published: 2024-04-26
  track: Wasted Waters
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143097
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Wasted Waters
      type: MusicAlbum
      date published: 2024-04-26
album: Stolen Moments
  type: MusicAlbum
  date published: 2024-05-17
  track: Stolen Moments
    type: MusicRecording
    duration: PT2M30S
    duration ms: 150144
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Stolen Moments
      type: MusicAlbum
      date published: 2024-05-17
album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07
  track: Wasted Waters
    type: MusicRecording
    duration: PT2M23S
    duration ms: 143097
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Endless Longing
      type: MusicAlbum
      date published: 2024-06-07
  track: Moonlit Flight
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147812
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Endless Longing
      type: MusicAlbum
      date published: 2024-06-07
  track: Joyful
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162322
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Endless Longing
      type: MusicAlbum
      date published: 2024-06-07
    isrc code: DGA0Q2346562
  track: Lovers Past
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162219
    explicit: false
    by artist: Marcel Sebastian Kaufmann
    in album: Endless Longing
      type: MusicAlbum
      date published: 2024-06-07
  track: Room in Your Heart
  track: Morning Dreams
  track: Stolen Moments
  track: Thousand Times And Again
  track: Breathing Delights
  track: Back To Earth
  track: Riverside Mind
  track: Endless Longing
  track: Pre-flight Thoughts
  track: This Morning With You
album: Endless Longing: Part 1 (Live)
album: Endless Longing: Part 2 (Live)
album: Endless Longing (Live)
album: yesterday's gone
album: a home in space
album: meadows flight
album: memories of a symphony
album: gratitude
album: evening walk
album: thoughts in transit
album: Farewell to Robin
album: Bluebird's Dawn
album: Goldfinch's Melody
album: Birds
album: summer in my mind
album: leaving the dark
album: spread your wings
album: chasing a distance
album: stages
album: adventurous hearts
album: a flock of swifts
album: journey beyond

Room in Your Heart
type: MusicRecording
duration: PT3M4S
duration ms: 184689
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07
isrc code: DGA0Q2346563
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-28T20:26:57+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf80655d884b09ce673b8b7fe68dc61a87fd3316bcb669ee95cc8c272275402e3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956375
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956375
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2346563
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T16:51:38Z
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80655d884b09ce673b8b7fe68dc61a87fd3316bcb669ee95cc8c272275402e3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA0Q2346563.
  date published: 2026-07-02T16:51:38Z

Morning Dreams
type: MusicRecording
duration: PT2M24S
duration ms: 144817
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07

Stolen Moments
type: MusicRecording
duration: PT2M30S
duration ms: 150144
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07

Thousand Times And Again
type: MusicRecording
duration: PT2M25S
duration ms: 145602
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07

Breathing Delights
type: MusicRecording
duration: PT2M10S
duration ms: 130617
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07
isrc code: DGA0Q2346567
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T22:43:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4d9c1772b977904c8daa86748dc6a8c60d8b1f0a5c3ef135f3aa5afbdd19f11
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956725
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block/956725
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA0Q2346567
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:12:41Z
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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d9c1772b977904c8daa86748dc6a8c60d8b1f0a5c3ef135f3aa5afbdd19f11. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DGA0Q2346567.
  date published: 2026-07-05T01:12:41Z

Back To Earth
type: MusicRecording
duration: PT2M39S
duration ms: 159085
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07

Riverside Mind
type: MusicRecording
duration: PT2M55S
duration ms: 175997
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07
isrc code: DGA0Q2346569

Endless Longing
type: MusicRecording
duration: PT2M35S
duration ms: 155755
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07
isrc code: DGA0Q2346570

Pre-flight Thoughts
type: MusicRecording
duration: PT2M32S
duration ms: 152014
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07
isrc code: DGA0Q2346571

This Morning With You
type: MusicRecording
duration: PT2M39S
duration ms: 159212
explicit: false
by artist: Marcel Sebastian Kaufmann
in album: Endless Longing
  type: MusicAlbum
  date published: 2024-06-07

Endless Longing: Part 1 (Live)
type: MusicAlbum
date published: 2024-06-28
track: Lovers Past - Live
  type: MusicRecording
  duration: PT2M44S
  duration ms: 164241
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 1 (Live)
    type: MusicAlbum
    date published: 2024-06-28
track: Pre-flight Thoughts - Live
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177527
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 1 (Live)
    type: MusicAlbum
    date published: 2024-06-28
track: Wasted Waters - Live
  type: MusicRecording
  duration: PT2M37S
  duration ms: 157073
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 1 (Live)
    type: MusicAlbum
    date published: 2024-06-28
track: Joyful - Live
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151627
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 1 (Live)
    type: MusicAlbum
    date published: 2024-06-28

Endless Longing: Part 2 (Live)
type: MusicAlbum
date published: 2024-07-19
track: Lovers Past - Live
  type: MusicRecording
  duration: PT2M44S
  duration ms: 164241
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 2 (Live)
    type: MusicAlbum
    date published: 2024-07-19
track: Pre-flight Thoughts - Live
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177527
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 2 (Live)
    type: MusicAlbum
    date published: 2024-07-19
track: Wasted Waters - Live
  type: MusicRecording
  duration: PT2M37S
  duration ms: 157073
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 2 (Live)
    type: MusicAlbum
    date published: 2024-07-19
track: Joyful - Live
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151627
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 2 (Live)
    type: MusicAlbum
    date published: 2024-07-19
track: Morning Dreams - Live
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152680
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 2 (Live)
    type: MusicAlbum
    date published: 2024-07-19
track: Stolen Moments - Live
  type: MusicRecording
  duration: PT2M17S
  duration ms: 137282
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 2 (Live)
    type: MusicAlbum
    date published: 2024-07-19
track: Room in Your Heart - Live
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169943
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing: Part 2 (Live)
    type: MusicAlbum
    date published: 2024-07-19

Endless Longing (Live)
type: MusicAlbum
date published: 2024-08-09
track: Lovers Past - Live
  type: MusicRecording
  duration: PT2M44S
  duration ms: 164241
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
track: Pre-flight Thoughts - Live
  type: MusicRecording
  duration: PT2M57S
  duration ms: 177527
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
track: Wasted Waters - Live
  type: MusicRecording
  duration: PT2M37S
  duration ms: 157073
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
  isrc code: DGA052445171
track: Joyful - Live
  type: MusicRecording
  duration: PT2M31S
  duration ms: 151627
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
track: Morning Dreams - Live
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152680
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
track: Stolen Moments - Live
  type: MusicRecording
  duration: PT2M17S
  duration ms: 137282
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
  isrc code: DGA052445174
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-16T08:28:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd90cd018335ede50e1c305b11f51e7ee65114315478c6118d054e7418fb06210
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958271
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/958271
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052445174
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-16T11:30:18Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90cd018335ede50e1c305b11f51e7ee65114315478c6118d054e7418fb06210. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:30:18Z), 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/DGA052445174.
    date published: 2026-07-16T11:30:18Z
track: Room in Your Heart - Live
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169943
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
  isrc code: DGA052445175
track: Riverside Mind - Live
  type: MusicRecording
  duration: PT4M2S
  duration ms: 242849
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
  isrc code: DGA052445176
track: This Morning With You - Live
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163490
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
  isrc code: DGA052445177
track: Endless Longing - Live
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144673
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
track: Thousand Times And Again - Live
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138505
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09
track: Moonlit Flight - Live
  type: MusicRecording
  duration: PT3M0S
  duration ms: 180114
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Endless Longing (Live)
    type: MusicAlbum
    date published: 2024-08-09

yesterday's gone
type: MusicAlbum
date published: 2024-08-30
track: yesterday's gone
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166793
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: yesterday's gone
    type: MusicAlbum
    date published: 2024-08-30
  isrc code: DGA082453345
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-16T00:21:32+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa77aef8e656a1190870ef7ad75f396455f78f3591c88fc237197380178b7ca23
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block/958224
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082453345
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77aef8e656a1190870ef7ad75f396455f78f3591c88fc237197380178b7ca23. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DGA082453345.
    date published: 2026-07-16T02:28:43Z

a home in space
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date published: 2024-09-20
track: a home in space
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193297
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: a home in space
    type: MusicAlbum
    date published: 2024-09-20
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  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
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  additional property: OTSVerificationAPI
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1b5d98b1e62126718db8a614670fe55b13707e6bddb91db7f7374ce4f6aabf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DGA082453349.
    date published: 2026-07-06T01:26:17Z

meadows flight
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date published: 2024-10-11
track: meadows flight
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  duration ms: 189739
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    type: MusicAlbum
    date published: 2024-10-11
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  additional property: OTSVerificationAPI
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74765be17587053093e5a0bbfa7ba8ccf687278d7d8e761a5e61e36cc5e769b6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA082453352.
    date published: 2026-07-03T19:59:51Z

memories of a symphony
type: MusicAlbum
date published: 2024-11-01
track: memories of a symphony
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185525
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: memories of a symphony
    type: MusicAlbum
    date published: 2024-11-01

gratitude
type: MusicAlbum
date published: 2024-11-22
track: gratitude
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169708
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: gratitude
    type: MusicAlbum
    date published: 2024-11-22
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4a8baa86195d5e74c0b832c359ad75e07c8f6c12597ee3dc7999297fcb788a0a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block/956776
  additional property: OTSVerificationAPI
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8baa86195d5e74c0b832c359ad75e07c8f6c12597ee3dc7999297fcb788a0a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DGA082453346.
    date published: 2026-07-05T10:59:37Z

evening walk
type: MusicAlbum
date published: 2024-12-13
track: evening walk
  type: MusicRecording
  duration: PT2M27S
  duration ms: 147988
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: evening walk
    type: MusicAlbum
    date published: 2024-12-13
  isrc code: DGA082453358

thoughts in transit
type: MusicAlbum
date published: 2025-01-17
track: yesterday's gone
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166793
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: gratitude
  type: MusicRecording
  duration: PT2M49S
  duration ms: 169708
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: passing by
  type: MusicRecording
  duration: PT3M30S
  duration ms: 210123
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: restless and peace
  type: MusicRecording
  duration: PT3M15S
  duration ms: 195557
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: a home in space
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193297
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: for your arrival
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156986
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: coffee in bed
  type: MusicRecording
  duration: PT2M36S
  duration ms: 156375
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: meadows flight
  type: MusicRecording
  duration: PT3M9S
  duration ms: 189739
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: memories of a symphony
  type: MusicRecording
  duration: PT3M5S
  duration ms: 185525
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: as you wished
  type: MusicRecording
  duration: PT3M13S
  duration ms: 193357
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: thoughts in transit
  type: MusicRecording
  duration: PT2M44S
  duration ms: 164181
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: chosen path
  type: MusicRecording
  duration: PT3M42S
  duration ms: 222200
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: then you appear
  type: MusicRecording
  duration: PT2M52S
  duration ms: 172507
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17
track: evening walk
  type: MusicRecording
  duration: PT2M27S
  duration ms: 147988
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: thoughts in transit
    type: MusicAlbum
    date published: 2025-01-17

Farewell to Robin
type: MusicAlbum
date published: 2025-03-21
track: Farewell to Robin
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146447
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Farewell to Robin
    type: MusicAlbum
    date published: 2025-03-21

Bluebird's Dawn
type: MusicAlbum
date published: 2025-04-11
track: Bluebird's Dawn
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141000
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Bluebird's Dawn
    type: MusicAlbum
    date published: 2025-04-11
track: Farewell to Robin
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146447
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Bluebird's Dawn
    type: MusicAlbum
    date published: 2025-04-11

Goldfinch's Melody
type: MusicAlbum
date published: 2025-05-02
track: Goldfinch's Melody
  type: MusicRecording
  duration: PT2M10S
  duration ms: 130666
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Goldfinch's Melody
    type: MusicAlbum
    date published: 2025-05-02
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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    value: 2026-07-02T21:50:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
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  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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    value: https://blockstream.info/api/block/956420
  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR2X42593398
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe959fc82702edcb10b24e2e8327fa70b1e4e0b4ea7b36e64358a123a85326891. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR2X42593398.
    date published: 2026-07-03T00:42:11Z
track: Bluebird's Dawn
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  explicit: false
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    type: MusicAlbum
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  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
    type: PropertyValue
    value: https://blockstream.info/api/block/958331
  additional property: OTSVerificationAPI
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b32145888743e901a35e46898da211000454d2fc3b5ef71f85a6e21f7fbb6. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:04Z), 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/FR2X42593399.
    date published: 2026-07-17T00:32:04Z
track: Farewell to Robin
  type: MusicRecording
  duration: PT2M26S
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  explicit: false
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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: OTSVerificationAPI
    type: PropertyValue
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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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c3a432b94b0fab7771f31b210088aa3abeeac624e37003f1c781243aeb82fe. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/FR2X42593400.
    date published: 2026-07-17T06:48:00Z

Birds
type: MusicAlbum
date published: 2025-05-23
track: Humming Bird
  type: MusicRecording
  duration: PT2M16S
  duration ms: 136000
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Birds
    type: MusicAlbum
    date published: 2025-05-23
track: Lament of the Lark
  type: MusicRecording
  duration: PT2M22S
  duration ms: 142398
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Birds
    type: MusicAlbum
    date published: 2025-05-23
track: Song for the Starling
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152000
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Birds
    type: MusicAlbum
    date published: 2025-05-23
track: Goldfinch's Melody
  type: MusicRecording
  duration: PT2M10S
  duration ms: 130666
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Birds
    type: MusicAlbum
    date published: 2025-05-23
track: Bluebird's Dawn
  type: MusicRecording
  duration: PT2M21S
  duration ms: 141000
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Birds
    type: MusicAlbum
    date published: 2025-05-23
track: Farewell to Robin
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146447
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: Birds
    type: MusicAlbum
    date published: 2025-05-23

summer in my mind
type: MusicAlbum
date published: 2025-06-13
track: summer in my mind
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190619
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: summer in my mind
    type: MusicAlbum
    date published: 2025-06-13

leaving the dark
type: MusicAlbum
date published: 2025-07-04
track: leaving the dark
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163436
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: leaving the dark
    type: MusicAlbum
    date published: 2025-07-04
track: summer in my mind
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190619
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: leaving the dark
    type: MusicAlbum
    date published: 2025-07-04
  isrc code: FR96X2545141

spread your wings
type: MusicAlbum
date published: 2025-07-25
track: spread your wings
  type: MusicRecording
  duration: PT2M38S
  duration ms: 158392
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: spread your wings
    type: MusicAlbum
    date published: 2025-07-25
track: leaving the dark
  type: MusicRecording
  duration: PT2M43S
  duration ms: 163436
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: spread your wings
    type: MusicAlbum
    date published: 2025-07-25
track: summer in my mind
  type: MusicRecording
  duration: PT3M10S
  duration ms: 190619
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: spread your wings
    type: MusicAlbum
    date published: 2025-07-25

chasing a distance
type: MusicAlbum
date published: 2025-08-15
track: chasing a distance
  type: MusicRecording
  duration: PT3M2S
  duration ms: 182006
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: chasing a distance
    type: MusicAlbum
    date published: 2025-08-15
track: spread your wings
  type: MusicRecording
  duration: PT2M38S
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  in album: chasing a distance
    type: MusicAlbum
    date published: 2025-08-15
track: leaving the dark
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  duration: PT2M43S
  duration ms: 163436
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: chasing a distance
    type: MusicAlbum
    date published: 2025-08-15

stages
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date published: 2025-09-05
track: stages
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    type: MusicAlbum
    date published: 2025-09-05
track: chasing a distance
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  duration: PT3M2S
  duration ms: 182006
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: stages
    type: MusicAlbum
    date published: 2025-09-05
track: spread your wings
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  duration ms: 158392
  explicit: false
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  in album: stages
    type: MusicAlbum
    date published: 2025-09-05
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  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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    value: 2026-07-02T22:10:57+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x8b21d7324a7f0d577e7f1de82f3d893ec02bc74a9e7e669b50d1d6461bcbb1d9
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
    type: PropertyValue
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-03T01:01:38Z

adventurous hearts
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date published: 2025-09-26
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  explicit: false
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    type: MusicAlbum
    date published: 2025-09-26
track: stages
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  duration: PT2M53S
  duration ms: 173552
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: adventurous hearts
    type: MusicAlbum
    date published: 2025-09-26
track: chasing a distance
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  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: adventurous hearts
    type: MusicAlbum
    date published: 2025-09-26

a flock of swifts
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date published: 2025-10-17
track: a flock of swifts
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  duration: PT2M24S
  duration ms: 144922
  explicit: false
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    type: MusicAlbum
    date published: 2025-10-17
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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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    value: 2026-07-03T21:18:05Z
  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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-03T21:18:05Z
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  duration: PT2M48S
  duration ms: 168539
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: a flock of swifts
    type: MusicAlbum
    date published: 2025-10-17
track: stages
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173552
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: a flock of swifts
    type: MusicAlbum
    date published: 2025-10-17

journey beyond
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date published: 2025-11-07
track: surely have mercy
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    type: MusicAlbum
    date published: 2025-11-07
track: stages
  type: MusicRecording
  duration: PT2M53S
  duration ms: 173552
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: melting a stone
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  duration: PT2M46S
  duration ms: 166809
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: chasing a distance
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  duration: PT3M2S
  duration ms: 182006
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: looking for someone
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  duration: PT3M12S
  duration ms: 192459
  explicit: false
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  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: leaving the dark
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  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: journey beyond
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  duration: PT3M2S
  duration ms: 182537
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: spread your wings
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  duration: PT2M38S
  duration ms: 158392
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: summer in my mind
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  duration: PT3M10S
  duration ms: 190619
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  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: adventurous hearts
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  duration: PT2M48S
  duration ms: 168539
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: next year
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  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: when you think of me
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  duration: PT2M55S
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  explicit: false
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  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: a flock of swifts
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  duration: PT2M24S
  duration ms: 144922
  explicit: false
  by artist: Marcel Sebastian Kaufmann
  in album: journey beyond
    type: MusicAlbum
    date published: 2025-11-07
track: a fading light
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  duration: PT3M0S
  duration ms: 180074
  explicit: false
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    type: MusicAlbum
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