Mathias Grassow
type: MusicGroup
genre: ambient
genre: dark ambient
genre: drone
genre: space music
description: Mathias Grassow (9 May 1963 – 13 August 2025) was a German ambient musician whose recordings can also be classified in the genres of dark ambient and drone ambient. His music often has a meditative an
popularity: 22
followers: 4776
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xbe3a999dce533ab2ac29ce1b90f1d9586944ce16af6a10d424c2dbaf20c6dd56
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbf9db5d-91bf-4be3-a608-dadd728cc334.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbf9db5d-91bf-4be3-a608-dadd728cc334.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbf9db5d-91bf-4be3-a608-dadd728cc334
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3a999dce533ab2ac29ce1b90f1d9586944ce16af6a10d424c2dbaf20c6dd56. 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/dbf9db5d-91bf-4be3-a608-dadd728cc334.json and https://artists.proofprofile.net/proofs/artist/dbf9db5d-91bf-4be3-a608-dadd728cc334.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
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album: Psychic Dome
  type: MusicAlbum
  date published: 1993
album: In Search Of Sanity
  type: MusicAlbum
  date published: 1993-05-07
album: The Lanzarote Concert
  type: MusicAlbum
  date published: 1993-05-07
album: Ambience
  type: MusicAlbum
  date published: 1995
album: Lifecycle
  type: MusicAlbum
  date published: 1996
album: Prophecy
  type: MusicAlbum
  date published: 1998
album: Himalaya
  type: MusicAlbum
  date published: 2002-01-14
album: Elixir
  type: MusicAlbum
  date published: 2006
album: Emerald
  type: MusicAlbum
  date published: 2007-02-27
album: Deeper Purity
  type: MusicAlbum
  date published: 2007-08-31
album: Mind Riders
  type: MusicAlbum
  date published: 2007-10-16
album: Clear Light Of Death
  type: MusicAlbum
  date published: 2007-11-15
album: Highlights 1
  type: MusicAlbum
  date published: 2008-02-06
album: Highlights 2
  type: MusicAlbum
  date published: 2008-03-17
album: Highlights 3
  type: MusicAlbum
  date published: 2008-03-17
album: Inner Light
  type: MusicAlbum
  date published: 2008-05-23
album: Calibration
  type: MusicAlbum
  date published: 2009-01-08
album: Transpersonal
  type: MusicAlbum
  date published: 2009-05-11
album: Dissolution
  type: MusicAlbum
  date published: 2009-05-11
album: The Fragrance of Eternal Roses ( 2010 Remaster )
  type: MusicAlbum
  date published: 2010-01-08
album: Dämmerung
  type: MusicAlbum
  date published: 2012-12-01
  track: A Bed of Clouds
    type: MusicRecording
    duration: PT19M52S
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    explicit: false
    by artist: Mathias Grassow
    in album: Dämmerung
      type: MusicAlbum
      date published: 2012-12-01
    genre: ambient
    genre: dark ambient
    genre: drone
    genre: space music
    isrc code: USHM21396503
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    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlock
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21396503
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:01:38Z
    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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45253fdfb92771edb4c18465dceab501289e88d0db5642f21aea6aa1e0e54662. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USHM21396503.
      date published: 2026-07-03T01:01:38Z
    audio: A Bed of Clouds
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      additional property: Danceability
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      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: Major
  track: Setting Sun
    type: MusicRecording
    duration: PT9M44S
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    explicit: false
    by artist: Mathias Grassow
    in album: Dämmerung
      type: MusicAlbum
      date published: 2012-12-01
    genre: ambient
    genre: dark ambient
    genre: drone
    genre: space music
    isrc code: USHM21396504
    additional property: CopyrightID
    additional property: CopyrightStatus
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
    additional property: OTSHash
    additional property: OTSBitcoinBlock
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Setting Sun
  track: Last Rays
  track: Nightfall
  track: Entering the Between
album: Tara
album: Aeroarea
album: Interstellar Gravity
album: Wisdom of Fate
album: The Darklight Quest
album: The Nightquest Sessions
album: Ascending Rosespirals
album: Vivamus Sit Potens
album: Prague 2017
album: Jericho
album: Dagaz
album: Tarart Mima Mystery
album: A Symphony Of Steel World War I
album: A Symphony Of Steel World War II
album: Az-5
album: Too Much Distance
album: Namakar
album: Pränatal
album: The Secrets Of Chartres
album: Electric Bowls
album: The Fountain Of Remembrance
album: Bazaar
album: Europa - Through The Times
album: Afrika Through The Times
album: Asien Through The Times
album: Australien Through The Times
album: Südamerika Through The Times
album: The Mysterious 8Th Continent
album: Umlaufbahnen
album: The Salt Of Life
album: The Shamans Of Science: Al-Shaman Chapter I - Scripts And Secrets
album: The Shamans Of Science: Al-Shaman Chapter III - The Twelve Steps Of Magnum Opus
album: The Shamans Of Science: Al-Shaman Chapter II - Planets And Metals
album: Cascading Rosespirals
album: Spirals Of Roses In Time
album: Lichtwerk
album: Short Stories
album: Liana Of Spirits - Rank Of Souls
album: Natives & Origins

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CopyrightStatus
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value: registered

CopyrightRegisteredAt
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value: 2026-07-15T09:31:06+00:00

CopyrightChainExplorerURL
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value: https://explorer.copyrightchains.com/tx/0xb2b3784d647c3d2554d50329df41f0ebf65ffcf7f615d751bcc53b8e509db940

OTSHash
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OTSBitcoinBlock
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value: 958140

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958140

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21396504

OTSTimestamp
type: PropertyValue
value: 2026-07-15T10:05:23Z

OTSVerifyInstructions
type: PropertyValue
value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b3784d647c3d2554d50329df41f0ebf65ffcf7f615d751bcc53b8e509db940. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/USHM21396504.
date published: 2026-07-15T10:05:23Z

Setting Sun
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 77.432
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.067
additional property: Energy
  type: PropertyValue
  value: 0.196
additional property: Speechiness
  type: PropertyValue
  value: 0.051
additional property: Acousticness
  type: PropertyValue
  value: 0.724
additional property: Instrumentalness
  type: PropertyValue
  value: 0.784
additional property: Liveness
  type: PropertyValue
  value: 0.109
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.166
additional property: Loudness (dB)
  type: PropertyValue
  value: -24.108
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Last Rays
type: MusicRecording
duration: PT13M23S
duration ms: 803773
explicit: false
by artist: Mathias Grassow
in album: Dämmerung
  type: MusicAlbum
  date published: 2012-12-01
genre: ambient
genre: dark ambient
genre: drone
genre: space music
isrc code: USHM21396505
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-17T06:20:32+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea218cc35a518341b4a5e9e8cbc0f969e58c0e8ceb60b010d7c918a69a7fc282
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958376
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958376
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21396505
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-17T06:41:00Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea218cc35a518341b4a5e9e8cbc0f969e58c0e8ceb60b010d7c918a69a7fc282. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/USHM21396505.
  date published: 2026-07-17T06:41:00Z
audio: Last Rays
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 124.58
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.172
  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
    value: 0.055
  additional property: Acousticness
    type: PropertyValue
    value: 0.934
  additional property: Instrumentalness
    type: PropertyValue
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  additional property: Liveness
    type: PropertyValue
    value: 0.11
  additional property: Valence (Positivity)
    type: PropertyValue
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  additional property: Loudness (dB)
    type: PropertyValue
    value: -33.604
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
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Nightfall
type: MusicRecording
duration: PT6M4S
duration ms: 364266
explicit: false
by artist: Mathias Grassow
in album: Dämmerung
  type: MusicAlbum
  date published: 2012-12-01
genre: ambient
genre: dark ambient
genre: drone
genre: space music
isrc code: USHM21396506
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T09:32:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7378a2ab5c54b8a657230ff0cdfcdb7494000e3691fc6303af3505da8385c6ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958140
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958140
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21396506
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T10:05:23Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7378a2ab5c54b8a657230ff0cdfcdb7494000e3691fc6303af3505da8385c6ca. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/USHM21396506.
  date published: 2026-07-15T10:05:23Z
audio: Nightfall
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 60.188
  additional property: Musical Key
    type: PropertyValue
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  additional property: Mode (Major/Minor)
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    value: 1
  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
    value: 0.058
  additional property: Energy
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    value: 0.195
  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
    type: PropertyValue
    value: 0.72
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.89
  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.034
  additional property: Loudness (dB)
    type: PropertyValue
    value: -23.141
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    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Entering the Between
type: MusicRecording
duration: PT14M45S
duration ms: 885413
explicit: false
by artist: Mathias Grassow
in album: Dämmerung
  type: MusicAlbum
  date published: 2012-12-01
genre: ambient
genre: dark ambient
genre: drone
genre: space music
isrc code: USHM21396507
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-15T10:09:36+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x44029a90910443cd8917dc8a4bb13f33016b4f6d04f99499835e0e07521d10e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958146
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958146
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21396507
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-15T10:33:22Z
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44029a90910443cd8917dc8a4bb13f33016b4f6d04f99499835e0e07521d10e7. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USHM21396507.
  date published: 2026-07-15T10:33:22Z
audio: Entering the Between
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
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  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
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  additional property: Speechiness
    type: PropertyValue
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  additional property: Acousticness
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Tara
type: MusicAlbum
date published: 2013-06-01

Aeroarea
type: MusicAlbum
date published: 2015

Interstellar Gravity
type: MusicAlbum
date published: 2016
track: Underneath The Stars
  type: MusicRecording
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Wisdom of Fate
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The Darklight Quest
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The Nightquest Sessions
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Ascending Rosespirals
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Vivamus Sit Potens
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Prague 2017
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Jericho
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Dagaz
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Tarart Mima Mystery
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A Symphony Of Steel World War I
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A Symphony Of Steel World War II
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Az-5
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Too Much Distance
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Namakar
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Pränatal
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The Secrets Of Chartres
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Electric Bowls
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The Fountain Of Remembrance
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Bazaar
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Europa - Through The Times
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Afrika Through The Times
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Asien Through The Times
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Australien Through The Times
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Südamerika Through The Times
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The Mysterious 8Th Continent
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Umlaufbahnen
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The Salt Of Life
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The Shamans Of Science: Al-Shaman Chapter I - Scripts And Secrets
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The Shamans Of Science: Al-Shaman Chapter III - The Twelve Steps Of Magnum Opus
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The Shamans Of Science: Al-Shaman Chapter II - Planets And Metals
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Cascading Rosespirals
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Spirals Of Roses In Time
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Lichtwerk
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Short Stories
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Liana Of Spirits - Rank Of Souls
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Natives & Origins
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Through an unknown stargate
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Halla
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Codex Alimentarius
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Interstellar Ambience
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LYRAMOS
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Harmaja
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