Jef Martens
type: MusicGroup
popularity: 35
followers: 149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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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: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31ada9bcc1973a41f8bc587775c009f135c3300d1eb7cf797ad5e4b3d7527d2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf83cac0-467e-494d-8b12-da9b30e0fc71.json and https://artists.proofprofile.net/proofs/artist/bf83cac0-467e-494d-8b12-da9b30e0fc71.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
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album: Preludio 1
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  date published: 2025-01-02
album: All But Nothing
  type: MusicAlbum
  date published: 2025-01-02
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      type: MusicAlbum
      date published: 2025-01-02
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    additional property: OTSVerificationAPI
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    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 → 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20636fad3fbeef983837b3141e52869cada14b1f5ccad8d1c7d4dd81fec27ee0. 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/QMDA72470372.
      date published: 2026-07-02T16:51:38Z
    audio: All But Nothing
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album: OOOOI
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  date published: 2025-01-02
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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 → 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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c9312c90497d77e2108908ca7834ce0ea72966d04513d3e3ac2d3f5fc44f86. 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/QMDA72473196.
      date published: 2026-07-02T16:51:38Z
    audio: OOOOI
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        type: PropertyValue
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      additional property: Valence (Positivity)
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album: Obsidian Veil
album: A Year Of Meditations - I
album: Limestone Buffs
album: Variations sur un sentiment - Variation 2
album: Preludio 2
album: And Nothing More
album: OOOIO
album: What If We Just
album: Ozark Forest
album: Alabaster Drift
album: A Year Of Meditations - II
album: OOOII
album: Variations sur un sentiment - Variation 3
album: Preludio 3
album: Could This Be
album: Caves
album: A Year Of Meditations - III
album: Verdant Umber
album: Throw Away The Old
album: OOIOO
album: Variations sur un sentiment - Variation 4
album: Longing Hours
album: Preludio 4
album: For Us To Embrace
album: A Year Of Meditations - IV
album: Shoreline Reeds
album: Saffron Mote
album: Preludio 5
album: The Edge Of Anywhere
album: Variations sur un sentiment - Variation 5
album: OOIOI
album: Whatever There Might Be
album: Oak Savanna
album: A Year Of Meditations - V
album: Cobalt Vein
album: Preludio 6
album: OOIIO
album: Of A Different Kind
album: Variations sur un sentiment - Variation 6
album: On Our Path
album: Slate Whisper
album: Bear Bottom
album: A Year Of Meditations - VI
album: Variations sur un sentiment - Variation 7
album: Preludio 7
album: OOIII
album: The Richer Part Of Blue
album: Argent Veil
album: A Year Of Meditations - VII
album: To Where We Don't Remember
album: Freshwater Springs
album: Variations sur un sentiment - Variation 8
album: Preludio 8
album: OIOOO
album: Seconds Beating Slower
album: Black Rock Ledge
album: A Place Beyond The Pines
album: Ochre Dust
album: A Year Of Meditations - VIII
album: Preludio 9
album: OIOOI

Liveness
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value: 0.109

Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Obsidian Veil
type: MusicAlbum
date published: 2025-01-03

A Year Of Meditations - I
type: MusicAlbum
date published: 2025-01-03

Limestone Buffs
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date published: 2025-01-03
track: Limestone Buffs
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    type: MusicAlbum
    date published: 2025-01-03
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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 → 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9654a17d7c28dab6faa590a4d5597d2a626f90fb3f77a5719e63bad3e7b9fafa. 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/QMDA72474149.
    date published: 2026-07-02T16:51:38Z
  audio: Limestone Buffs
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Variations sur un sentiment - Variation 2
type: MusicAlbum
date published: 2025-01-16

Preludio 2
type: MusicAlbum
date published: 2025-01-16

And Nothing More
type: MusicAlbum
date published: 2025-01-16

OOOIO
type: MusicAlbum
date published: 2025-01-16

What If We Just
type: MusicAlbum
date published: 2025-01-17

Ozark Forest
type: MusicAlbum
date published: 2025-01-17

Alabaster Drift
type: MusicAlbum
date published: 2025-01-17

A Year Of Meditations - II
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date published: 2025-01-17

OOOII
type: MusicAlbum
date published: 2025-01-30

Variations sur un sentiment - Variation 3
type: MusicAlbum
date published: 2025-01-30

Preludio 3
type: MusicAlbum
date published: 2025-01-30

Could This Be
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date published: 2025-01-30

Caves
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date published: 2025-01-31

A Year Of Meditations - III
type: MusicAlbum
date published: 2025-01-31

Verdant Umber
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date published: 2025-01-31

Throw Away The Old
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date published: 2025-01-31

OOIOO
type: MusicAlbum
date published: 2025-02-13

Variations sur un sentiment - Variation 4
type: MusicAlbum
date published: 2025-02-13

Longing Hours
type: MusicAlbum
date published: 2025-02-13

Preludio 4
type: MusicAlbum
date published: 2025-02-13

For Us To Embrace
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date published: 2025-02-14

A Year Of Meditations - IV
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date published: 2025-02-14

Shoreline Reeds
type: MusicAlbum
date published: 2025-02-14

Saffron Mote
type: MusicAlbum
date published: 2025-02-14

Preludio 5
type: MusicAlbum
date published: 2025-02-27

The Edge Of Anywhere
type: MusicAlbum
date published: 2025-02-27

Variations sur un sentiment - Variation 5
type: MusicAlbum
date published: 2025-02-27

OOIOI
type: MusicAlbum
date published: 2025-02-27

Whatever There Might Be
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date published: 2025-02-28

Oak Savanna
type: MusicAlbum
date published: 2025-02-28

A Year Of Meditations - V
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date published: 2025-02-28

Cobalt Vein
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date published: 2025-02-28

Preludio 6
type: MusicAlbum
date published: 2025-03-13

OOIIO
type: MusicAlbum
date published: 2025-03-13

Of A Different Kind
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date published: 2025-03-13

Variations sur un sentiment - Variation 6
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date published: 2025-03-13

On Our Path
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date published: 2025-03-14

Slate Whisper
type: MusicAlbum
date published: 2025-03-14

Bear Bottom
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date published: 2025-03-14

A Year Of Meditations - VI
type: MusicAlbum
date published: 2025-03-14

Variations sur un sentiment - Variation 7
type: MusicAlbum
date published: 2025-03-27
track: Variations sur un sentiment - Variation 7
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e31aa59b79c170ece3aecdaf983680410cb360cfee6c949edb3fb5a6577bd4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMDA72468299.
    date published: 2026-07-05T10:01:46Z
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Valence (Positivity)
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Preludio 7
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date published: 2025-03-27
track: Preludio 7
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  additional property: OTSVerificationAPI
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  additional property: OTSVerifyInstructions
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13cfa4206f63770b193a43ffd5d1612c6dc8e37f2bb7bf45830d3a7f370aa2b. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QMDA72471039.
    date published: 2026-07-17T03:33:42Z
  audio: Preludio 7
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.128
    additional property: Energy
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      value: 0.206
    additional property: Speechiness
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    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.947
    additional property: Liveness
      type: PropertyValue
      value: 0.122
    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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OOIII
type: MusicAlbum
date published: 2025-03-27
track: OOIII
  type: MusicRecording
  duration: PT2M26S
  duration ms: 146625
  explicit: false
  by artist: Jef Martens
  in album: OOIII
    type: MusicAlbum
    date published: 2025-03-27
  isrc code: QMDA72473223
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72473223
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T21:10:33Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc0b0c5452769bc8f01c84380c1121a31bac2f74e63aac2fd72f7a84a25e4bb. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:10:33Z), 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/QMDA72473223.
    date published: 2026-07-19T21:10:33Z
  audio: OOIII
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.382
    additional property: Energy
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      value: 0.081
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.976
    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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The Richer Part Of Blue
type: MusicAlbum
date published: 2025-03-27
track: The Richer Part Of Blue
  type: MusicRecording
  duration: PT2M28S
  duration ms: 148625
  explicit: false
  by artist: Jef Martens
  in album: The Richer Part Of Blue
    type: MusicAlbum
    date published: 2025-03-27
  isrc code: QMDA72470687
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  additional property: CopyrightStatus
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
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    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72470687
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-04T11:19:20Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3a89172ec9abbb0401b8c4268c878c794d7edcd465b8686c17f45c5ea3ce3f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72470687.
    date published: 2026-07-04T11:19:20Z
  audio: The Richer Part Of Blue
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Argent Veil
type: MusicAlbum
date published: 2025-03-28
track: Argent Veil
  type: MusicRecording
  duration: PT2M32S
  duration ms: 152625
  explicit: false
  by artist: Jef Martens
  in album: Argent Veil
    type: MusicAlbum
    date published: 2025-03-28
  isrc code: QMDA72474282
  additional property: CopyrightID
  additional property: CopyrightStatus
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  additional property: CopyrightRegisteredAt
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  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72474282
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T20:39:28Z
  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 → 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8392bb4960c43007b122650c1882ab069cf00b4c882ef43cb750f41a98222e68. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:39:28Z), 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/QMDA72474282.
    date published: 2026-07-19T20:39:28Z
  audio: Argent Veil
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
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      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.426
    additional property: Energy
      type: PropertyValue
      value: 0.174
    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
      value: 0.989
    additional property: Instrumentalness
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      value: 0.96
    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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A Year Of Meditations - VII
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date published: 2025-03-28
track: A Year Of Meditations - VII
  type: MusicRecording
  duration: PT2M40S
  duration ms: 160625
  explicit: false
  by artist: Jef Martens
  in album: A Year Of Meditations - VII
    type: MusicAlbum
    date published: 2025-03-28
  isrc code: QMDA72474428
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  additional property: CopyrightStatus
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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
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72474428
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T04:47:21Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ad7dbbfcc349831e8e3ad28a19a2c6afb04e0dec624d4e2795cd33b198bc6c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMDA72474428.
    date published: 2026-07-05T04:47:21Z
  audio: A Year Of Meditations - VII
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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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
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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To Where We Don't Remember
type: MusicAlbum
date published: 2025-03-28
track: To Where We Don't Remember
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144625
  explicit: false
  by artist: Jef Martens
  in album: To Where We Don't Remember
    type: MusicAlbum
    date published: 2025-03-28
  isrc code: QMDA72475400
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xfa66bc164cc7980fb17d623db529779640ab09b863ef75eb23af3e6c8139ce1d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA72475400
  additional property: OTSTimestamp
    type: PropertyValue
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa66bc164cc7980fb17d623db529779640ab09b863ef75eb23af3e6c8139ce1d. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:10:39Z), 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/QMDA72475400.
    date published: 2026-07-21T15:10:39Z
  audio: To Where We Don't Remember
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.378
    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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    additional property: Instrumentalness
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    additional property: Liveness
      type: PropertyValue
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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    additional property: Mode Name
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Freshwater Springs
type: MusicAlbum
date published: 2025-03-28
track: Freshwater Springs
  type: MusicRecording
  duration: PT2M24S
  duration ms: 144625
  explicit: false
  by artist: Jef Martens
  in album: Freshwater Springs
    type: MusicAlbum
    date published: 2025-03-28
  isrc code: QMDA72474166
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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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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    value: 958690
  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 → 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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdee5f176edd907652cecedcadf0f031265ff39308814f762db0841f683e825b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QMDA72474166.
    date published: 2026-07-19T07:14:39Z
  audio: Freshwater Springs
    type: AudioObject
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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Variations sur un sentiment - Variation 8
type: MusicAlbum
date published: 2025-04-10

Preludio 8
type: MusicAlbum
date published: 2025-04-10

OIOOO
type: MusicAlbum
date published: 2025-04-10

Seconds Beating Slower
type: MusicAlbum
date published: 2025-04-10

Black Rock Ledge
type: MusicAlbum
date published: 2025-04-11
track: Black Rock Ledge
  type: MusicRecording
  duration: PT2M6S
  duration ms: 126625
  explicit: false
  by artist: Jef Martens
  in album: Black Rock Ledge
    type: MusicAlbum
    date published: 2025-04-11
  isrc code: QMDA72474168
  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: 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 → 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
  subject of: OpenTimestamps Proof of Existence
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Ochre Dust
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A Year Of Meditations - VIII
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Preludio 9
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OIOOI
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Five More Minutes
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Variations sur un sentiment - Variation 9
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A Year Of Meditations - IX
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Wildflower Meadows
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OIOIO
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If Anything Then What
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Variations sur un sentiment - Variation 10
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Preludio 10
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Glade Hillside
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A Year Of Meditations - X
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Aegean Depth
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Variations sur un sentiment - Variation 11
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Around The Long Bend
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Preludio 11
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The Cypress Tree
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A Year Of Meditations - XI
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Umber Shade
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Variations sur un sentiment - Variation 12
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Just Jericho
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Preludio 12
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Onyx Murmur
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A Year Of Meditations - XII
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Variations sur un sentiment - Variation 13
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The Calmness Of Your Waters
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OIIOI
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Preludio 13
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Although Not False
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The Halfway Inn
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Ashen Fern
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Far From The Madness
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date published: 2025-07-03

Preludio 14
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OIIIO
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track: OIIIO
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-03T08:56:35Z
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Claret Tinge
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date published: 2025-07-04

They Didn't Fly
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Cove Waters
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A Year Of Meditations - XIV
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-15T08:02:29Z
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Variations sur un sentiment - Variation 15
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The Old Ways Of Tomorrow
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date published: 2025-07-17

OIIII
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Preludio 15
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Marshlands
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-13T00:52:48Z
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A Year Of Meditations - XV
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Celadon Wisp
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date published: 2025-07-18

Falling Short Of Magic
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date published: 2025-07-18

Variations sur un sentiment - Variation 16
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date published: 2025-07-31

IOOOO
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date published: 2025-07-31

Nowhere Near
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Preludio 16
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Sepia Glimmer
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Sycamore Groves
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A River Running Dry
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A Year Of Meditations - XVI
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IOOOI
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-15T11:59:58Z
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Preludio 17
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Variations sur un sentiment - Variation 17
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T10:59:37Z
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Ancient History
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But Hear Us Now
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-05T10:59:37Z
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A Year Of Meditations - XVII
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Azure Crest
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    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2b699c4a701499a2e658c9cd320d232a73c02fe4cfb9088290bca59a83d7f9. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:06:03Z), 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/QMDA72474296.
    date published: 2026-07-20T08:06:03Z
  audio: Azure Crest
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    additional property: Danceability
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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The Old Trail
type: MusicAlbum
date published: 2025-08-15

Preludio 18
type: MusicAlbum
date published: 2025-08-28

Variations sur un sentiment - Variation 18
type: MusicAlbum
date published: 2025-08-28

Albeit Somewhat Strange
type: MusicAlbum
date published: 2025-08-28

IOOIO
type: MusicAlbum
date published: 2025-08-28

A Year Of Meditations - XVIII
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date published: 2025-08-29
track: A Year Of Meditations - XVIII
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    date published: 2025-08-29
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    date published: 2026-07-03T09:04:44Z
  audio: A Year Of Meditations - XVIII
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Whispering Pines
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date published: 2025-08-29
track: Whispering Pines
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08464262143ce4fa83f56a7650b581740ddcd2a31d64f479e58afb28071df2bb. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMDA72474188.
    date published: 2026-07-03T08:56:35Z
  audio: Whispering Pines
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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In This Old Cave
type: MusicAlbum
date published: 2025-08-29

Graphite Echo
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date published: 2025-08-29
track: Graphite Echo
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    date published: 2025-08-29
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  additional property: OTSTimestamp
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  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T08:20:06Z
  audio: Graphite Echo
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    additional property: Mode (Major/Minor)
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    additional property: Speechiness
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Variations sur un sentiment - Variation 19
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date published: 2025-09-11

Preludio 19
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date published: 2025-09-11
track: Preludio 19
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-15T06:58:20Z
  audio: Preludio 19
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IOOII
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date published: 2025-09-11
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:26:17Z
  audio: IOOII
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Mildly Entertaining
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date published: 2025-09-11

Crystal Canopies
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T06:56:49Z
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Sienna Trace
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date published: 2025-09-12

We Find Ourselves
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date published: 2025-09-12

A Year Of Meditations - XIX
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date published: 2025-09-12

Preludio 20
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date published: 2025-09-25

IOIOO
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Variations sur un sentiment - Variation 20
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A Brief Encounter
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A Year Of Meditations - XX
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Topaz Dawn
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Bottomlands
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In Shades Of Stone
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Variations sur un sentiment - Variation 21
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  subject of: OpenTimestamps Proof of Existence
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IOIOI
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Preludio 21
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Of A Certain Interest
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Pistachio Whisper
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A Simpler Way
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Heart Sediment
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A Year Of Meditations - XXI
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Variations sur un sentiment - Variation 22
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To Whom It Might Concern
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Preludio 22
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IOIIO
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A Year Of Meditations - XXII
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Looking At Things
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Sandalwood Blush
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Wet Sand
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Because Of This
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Variations sur un sentiment - Variation 23
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Preludio 23
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IOIII
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A Year Of Meditations - XXIII
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The Abandoned Lodge
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Midnight Sapphire
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The Birth Of Understanding
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