Sebastian Zawadzki
type: MusicGroup
genre: neoclassical
description: Sebastian Zawadzki (born 14 October 1991) is a Polish-born jazz pianist, composer and film composer based in Copenhagen, Denmark. He has released albums since 2014 and composes and arranges music for
popularity: 30
followers: 12263
additional property: CopyrightID
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additional property: OTSVerifyInstructions
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  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1732039f89a1bf89589092a62dc49f06da24f267a65f29172c0c7bc9a2596d6. 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/39192f18-45da-413b-8bd9-251c06e8bcbf.json and https://artists.proofprofile.net/proofs/artist/39192f18-45da-413b-8bd9-251c06e8bcbf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T21:20:00Z
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album: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2012-08-02
album: Between the Dusk of a Summer Night
  type: MusicAlbum
  date published: 2017-07-15
album: Between the Dusk of a Summer Night
  type: MusicAlbum
  date published: 2017-07-15
album: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2018-01-01
album: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2018-01-01
album: Norn
  type: MusicAlbum
  date published: 2018-03-24
album: Norn
  type: MusicAlbum
  date published: 2018-03-24
album: Norn
  type: MusicAlbum
  date published: 2018-03-24
album: Norn
  type: MusicAlbum
  date published: 2018-03-24
album: Norn
  type: MusicAlbum
  date published: 2018-03-24
album: Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2018-08-02
album: Piano Works, Vol. 2
  type: MusicAlbum
  date published: 2018-08-02
album: Alongside the Meadow
  type: MusicAlbum
  date published: 2018-11-16
album: Time Capsule
  type: MusicAlbum
  date published: 2018-11-24
album: If It Was Now
  type: MusicAlbum
  date published: 2018-12-08
album: Entropy
  type: MusicAlbum
  date published: 2019-02-22
album: Songs About Time
  type: MusicAlbum
  date published: 2019-03-01
album: Songs About Time
  type: MusicAlbum
  date published: 2019-03-01
album: Piano Works, Vol. 3
  type: MusicAlbum
  date published: 2019-08-09
album: Piano Works, Vol. 3
  type: MusicAlbum
  date published: 2019-08-09
album: Spirituality
  type: MusicAlbum
  date published: 2020-01-10
album: Songs about Time
  type: MusicAlbum
  date published: 2020-03-01
  track: Time Capsule
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    by artist: Sebastian Zawadzki
    in album: Songs about Time
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      date published: 2020-03-01
    genre: neoclassical
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-20T13:19:29Z
    audio: Time Capsule
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  track: Heban
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    by artist: Sebastian Zawadzki
    in album: Songs about Time
      type: MusicAlbum
      date published: 2020-03-01
    genre: neoclassical
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    subject of: OpenTimestamps Proof of Existence
    audio: Heban
  track: I Remember The Evening
  track: If It Was Now
  track: Proximity
  track: This Is What It Means To Be Free
album: Phenomenology
album: Palette #1
album: Far Away
album: Palette 1
album: Infinite Nature
album: Memories That Follow
album: The Now and the Ever
album: Out of the Night That Covers Me
album: Invictus
album: Our Roads
album: Light in the Shadow
album: Words
album: Palette 2
album: D'autres Esprits
album: Palette 3
album: Amarath
album: Viridian
album: Coquelicot
album: Aureolin
album: Purple
album: Phlox
album: Glaucous
album: Procyon
album: Vega
album: Rigel
album: Mimosa
album: Deneb
album: Spica
album: Altair
album: Hadar
album: Betelgeuse
album: Pollux
album: Antares
album: And The Days Kept Dripping
album: Two
album: Underestimated
album: Vibrations
album: November
album: Melancholia
album: Zdrowie
album: Estate

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OTSHash
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OTSVerificationAPI
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OTSTimestamp
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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

OpenTimestamps Proof of Existence
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encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef0e99465f7d7cafec26d27de40d5914efacb7a351059937963f83398752bd9c. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:47:24Z), 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/QZFZ32301251.
date published: 2026-07-15T14:47:24Z

Heban
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I Remember The Evening
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explicit: false
by artist: Sebastian Zawadzki
in album: Songs about Time
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  date published: 2020-03-01
genre: neoclassical
isrc code: QZFZ32301254
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additional property: CopyrightStatus
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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 0x3f675adc2e8fd65de75f252a5ad3da5af46a184c7463502496ee614310e4e169. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZFZ32301254.
  date published: 2026-07-18T03:34:53Z
audio: I Remember The Evening
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If It Was Now
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by artist: Sebastian Zawadzki
in album: Songs about Time
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  date published: 2020-03-01
genre: neoclassical
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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 0xe5810a31be5f11af6b7416fbe939535537a03c065315fba98ffcbcb72b6a5cd0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZFZ32301256.
  date published: 2026-07-18T12:14:37Z
audio: If It Was Now
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Proximity
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by artist: Sebastian Zawadzki
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genre: neoclassical
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-17T00:53:26Z
audio: Proximity
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This Is What It Means To Be Free
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-15T15:18:40Z
audio: This Is What It Means To Be Free
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Songs about Time
type: MusicAlbum
date published: 2020-03-01

Spirituality
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date published: 2020-04-08

Phenomenology
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date published: 2020-07-24

Piano Works, Vol. 2
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date published: 2020-08-09
track: Unstoppable Changes
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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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    date published: 2026-07-11T09:08:48Z
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Piano Works, Vol. 2
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date published: 2020-08-09
track: Unstoppable Changes
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-20T17:46:25Z
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Piano Works, Vol. 2
type: MusicAlbum
date published: 2020-08-09

Palette #1
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date published: 2020-11-12

Far Away
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date published: 2020-11-30

Far Away
type: MusicAlbum
date published: 2020-11-30

Far Away
type: MusicAlbum
date published: 2020-11-30

Palette 1
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date published: 2021-01-19

Phenomenology
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date published: 2021-02-09

Between the Dusk of a Summer Night
type: MusicAlbum
date published: 2021-02-19

Between the Dusk of a Summer Night
type: MusicAlbum
date published: 2021-02-19

Infinite Nature
type: MusicAlbum
date published: 2021-03-05

Infinite Nature
type: MusicAlbum
date published: 2021-03-05

Memories That Follow
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date published: 2021-03-15

The Now and the Ever
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date published: 2021-03-26

Out of the Night That Covers Me
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date published: 2021-04-05

Invictus
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date published: 2021-04-16

Between the Dusk of a Summer Night
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date published: 2021-04-25

Between the Dusk of a Summer Night
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date published: 2021-04-25

Between the Dusk of a Summer Night
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date published: 2021-04-25

Between the Dusk of a Summer Night
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date published: 2021-04-26

Between the Dusk of a Summer Night
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date published: 2021-04-26

Between the Dusk of a Summer Night
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date published: 2021-04-26

Between the Dusk of a Summer Night
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date published: 2021-04-26

Between the Dusk of a Summer Night
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date published: 2021-04-26

Our Roads
type: MusicAlbum
date published: 2021-04-30

Light in the Shadow
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date published: 2021-05-07

Words
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date published: 2021-05-21

Spirituality
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date published: 2021-05-28

Palette 2
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date published: 2021-06-18

D'autres Esprits
type: MusicAlbum
date published: 2021-06-25

Palette 3
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date published: 2021-07-16

Words
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date published: 2021-09-17

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-09-25

Spirituality
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date published: 2021-10-08

Our Roads
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date published: 2021-10-18

Spirituality
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date published: 2021-10-29

Far Away
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-11T09:35:53Z
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Far Away
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Far Away
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date published: 2021-11-29
track: Far Away
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-17T19:12:23Z
  audio: Far Away
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Far Away
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Far Away
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date published: 2021-11-30

Amarath
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Viridian
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date published: 2021-12-10

Entropy
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Coquelicot
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Aureolin
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Entropy
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Purple
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Phlox
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Glaucous
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Viridian
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date published: 2022-03-04

Procyon
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Vega
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Rigel
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Mimosa
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Deneb
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Spica
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date published: 2022-06-17

Altair
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date published: 2022-07-01

Viridian
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date published: 2022-07-01

Viridian
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date published: 2022-07-01
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-06T01:25:57Z
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Viridian
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Viridian
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Viridian
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Hadar
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Betelgeuse
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Pollux
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Antares
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Altair
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Altair
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Altair
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Altair
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Altair
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Altair
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Altair
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Altair
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date published: 2022-09-30

Far Away
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date published: 2022-11-30

Far Away
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date published: 2022-11-30

Far Away
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date published: 2022-11-30

Entropy
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date published: 2023-01-16

And The Days Kept Dripping
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date published: 2023-02-03

Two
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date published: 2023-03-10

Underestimated
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date published: 2023-03-24

Coquelicot
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date published: 2023-04-07

Vibrations
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date published: 2023-04-21

November
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date published: 2023-05-05

Melancholia
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date published: 2023-05-19

Zdrowie
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date published: 2023-06-02

Vibrations
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date published: 2023-06-18

Vibrations
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date published: 2023-06-18

Viridian
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date published: 2023-07-01

Estate
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date published: 2023-09-01

I Didn't Know What Time It Was
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date published: 2023-09-15

Spirituality
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date published: 2023-09-24

Spirituality
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date published: 2023-09-24

Spirituality
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date published: 2023-09-24

Time Remembered
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date published: 2023-09-29

Standards, Vol. 1
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date published: 2023-10-13

Standards, Vol. 1
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date published: 2023-10-13

Standards, Vol. 1
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date published: 2023-10-13

Quiessentia Inter Notas
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date published: 2023-11-24

Dulcis Experrectio
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date published: 2023-12-08

Synthscapi
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date published: 2023-12-22

Pax Elysium
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date published: 2023-12-30

Pax Elysium
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date published: 2024-01-05

Piano Works, Vol. 1
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date published: 2024-07-05

Pax Elysium
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date published: 2024-07-06

Pax Elysium
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date published: 2024-07-06

Pax Elysium
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Monochrome IV
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Monochrome III
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date published: 2024-10-11

Piano Works, Vol. 1
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date published: 2024-10-17

Monochrome V
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date published: 2024-11-01

Intermission III
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date published: 2024-11-22

Whispered Melodies
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date published: 2024-11-30

Whispered Melodies
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date published: 2024-11-30

Whispered Melodies
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Whispered Melodies
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Whispered Melodies
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date published: 2024-11-30

Introduction
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date published: 2024-12-13

Intermission II
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date published: 2024-12-27

Monochrome
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date published: 2025-01-10

Monochrome
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