Christos Hatzis
type: MusicGroup
genre: indie jazz
genre: neofolk
description: Christos Hatzis (; born 1953) is a Juno Award-winning Greek-Canadian composer. Many of his compositions are performed internationally, and he is a professor at the Faculty of Music, University of Toro
popularity: 5
followers: 452
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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 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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album: Awakening
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  date published: 2005-01-01
album: Hatzis: Everlasting Light - The Music of Christos Hatzis
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  date published: 2006-01-01
  track: Fertility Rites: I. —
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      date published: 2006-01-01
    genre: indie jazz
    genre: neofolk
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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 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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      date published: 2026-07-08T03:22:41Z
    audio: Fertility Rites: I. —
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album: Constantinople
  type: MusicAlbum
  date published: 2006-01-01
album: Hatzis: Everlasting Light - The Music of Christos Hatzis
  type: MusicAlbum
  date published: 2006-01-01
album: Hatzis, C.: Byzantium
  type: MusicAlbum
  date published: 2012-04-01
album: Hatzis, C.: Byzantium
  type: MusicAlbum
  date published: 2012-04-01
album: Hatzis: Departures - Overscript
  type: MusicAlbum
  date published: 2014-04-01
album: Hatzis: Departures - Overscript
  type: MusicAlbum
  date published: 2014-04-01
album: Going Home Star: Truth and Reconciliation
  type: MusicAlbum
  date published: 2015-11-13
album: Going Home Star: Truth and Reconciliation
  type: MusicAlbum
  date published: 2015-11-13
album: Christos Hatzis: Lamento & Ecstasy
  type: MusicAlbum
  date published: 2020-01-24
album: Christos Hatzis: Lamento & Ecstasy
  type: MusicAlbum
  date published: 2020-01-24
album: Orbiting Garden
  type: MusicAlbum
  date published: 2025-07-11
track: Coming to
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  duration: PT3M15S
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  by artist: Christos Hatzis
  by artist: Hilary Hahn
  by artist: Cory Smythe
  in album: In 27 Pieces: the Hilary Hahn Encores
    type: MusicAlbum
    date published: 2013-01-01
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  subject of: OpenTimestamps Proof of Existence
  audio: Coming to
track: The Troparion of Kassiani
track: Old Photographs

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 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
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed0aad3162689fa8c362221e06c5971ae8a77e490fe62c0a3c64a02a4f4a341. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEN961205330.
date published: 2026-07-31T02:51:48Z

Coming to
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The Troparion of Kassiani
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by artist: Christos Hatzis
by artist: Patricia Rozario
by artist: English Chamber Choir
by artist: Guy Protheroe
in album: Choral Settings of Kassiani
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  date published: 2011-07-05
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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 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 0x82d6dfd05ea36ec5dcb7814fed9ebdfa00886d81a835842dfb30efedceb5ec09. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191112602.
  date published: 2026-07-08T03:22:41Z
audio: The Troparion of Kassiani
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Old Photographs
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by artist: Christos Hatzis
by artist: Gryphon Trio
in album: Canadian Premieres
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  date published: 2003
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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 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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  date published: 2026-07-31T03:15:04Z
audio: Old Photographs
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