Marcus Foster
type: MusicGroup
genre: indie folk
description: Marcus Albert Foster (March 31, 1923 – November 6, 1973) was an American educator who gained a national reputation for educational excellence while serving as principal of Simon Gratz High School in P
popularity: 14
followers: 12950
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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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  date published: 2026-06-15T11:52:51Z
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album: The Flowerpot Sessions (2CD Set)
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  date published: 2011-01-01
  track: You're The One That I Want - Live At The Flowerpot, Kentish Town, July 2010
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    by artist: Damien Rice
    by artist: Angus & Julia Stone
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      date published: 2011-01-01
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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: 2026-06-13T12:53:06Z
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  track: Patient Love - Live At The Flowerpot, Kentish Town, July 2010
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    by artist: Passenger
    by artist: Angus & Julia Stone
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      date published: 2011-01-01
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-22T15:41:47Z
    audio: Patient Love - Live At The Flowerpot, Kentish Town, July 2010
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  track: All I Want - Live At The Flowerpot, Kentish Town, July 2010
album: Ministry of Stories - Share More Air
album: I Was Broken (Instrumental)
album: Letting Go
album: Marcus Foster | OurVinyl Sessions
album: Worn Down by Time
album: The Last House
album: Rest of My Days (feat. Marcus Foster)

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All I Want - Live At The Flowerpot, Kentish Town, July 2010
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by artist: Sarah Blasko
in album: The Flowerpot Sessions (2CD Set)
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-06-13T12:47:07Z
audio: All I Want - Live At The Flowerpot, Kentish Town, July 2010
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Ministry of Stories - Share More Air
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date published: 2013-10-30
track: Round and Round
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  popularity: 11
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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: 2026-07-06T01:25:57Z
  audio: Round and Round
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I Was Broken (Instrumental)
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date published: 2023-10-13

Letting Go
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date published: 2016-10-14
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  genre: indie-folk
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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
    type: DigitalDocument
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    date published: 2026-07-02T03:55:08Z
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track: How Many Times
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
  audio: How Many Times
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Marcus Foster | OurVinyl Sessions
type: MusicAlbum
date published: 2013-07-23

Worn Down by Time
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date published: 2012-04-29
track: Worn Down by Time
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    date published: 2012-04-29
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
  audio: Worn Down by Time
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The Last House
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date published: 2012
track: I Won't Let Love Get in the Way
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  genre: indie-folk
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:30:09Z
  audio: I Won't Let Love Get in the Way
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track: In This Town
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    type: MusicAlbum
    date published: 2012
  genre: indie-folk
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  additional property: OTSVerifyInstructions
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  subject of: OpenTimestamps Proof of Existence
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    date published: 2026-07-02T03:55:08Z
  audio: In This Town
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track: Solid Ground
  type: MusicRecording
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    date published: 2012
  genre: indie-folk
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  subject of: OpenTimestamps Proof of Existence
  audio: Solid Ground

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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa795eeb15e379998c66db02e1ee7b3466c6cb9e2f97047e64b5c03bcc556dc1b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBK4S1200005.
date published: 2026-07-02T03:55:08Z

Solid Ground
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additional property: Tempo (BPM)
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Rest of My Days (feat. Marcus Foster)
type: MusicAlbum
date published: 2014-03-10