Daniel Marcus
type: MusicGroup
genre: musicals
description: Daniel Marcus is an American science fiction author from Berkeley, California. He has written numerous short stories that have appeared in Witness, Asimov's Science Fiction, Realms of Fantasy, The Ma
popularity: 24
followers: 143
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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: 2026-06-12T19:24:56Z
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album: My Street
  type: MusicAlbum
  date published: 2010-10-19
album: Thriller X
  type: MusicAlbum
  date published: 2023-11-23
album: 2022
  type: MusicAlbum
  date published: 2023-11-28
album: Beats'Man
  type: MusicAlbum
  date published: 2023-12-29
album: After Bass
  type: MusicAlbum
  date published: 2024-02-06
album: Scp 096
  type: MusicAlbum
  date published: 2024-08-19
album: Party People
  type: MusicAlbum
  date published: 2024-08-21
album: Dancing Feet
  type: MusicAlbum
  date published: 2024-09-27
album: New Game
  type: MusicAlbum
  date published: 2025-03-21
track: Cop Song
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  duration: PT2M43S
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  by artist: Jeff McCarthy
  by artist: Daniel Marcus
  by artist: Rachel Coloff
  by artist: Rick Crom
  by artist: Victor W. Hawks
  by artist: Megan Lawrence
  by artist: Lawrence Street
  by artist: Kay Walbye
  in album: Urinetown The Musical (Original Broadway Cast Recording)
    type: MusicAlbum
    date published: 2001-07-09
  popularity: 29
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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: 2026-06-13T12:47:07Z
  audio: Cop Song
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    additional property: Danceability
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track: Don't Be the Bunny
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  duration: PT3M2S
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  by artist: John Cullum
  by artist: Jennifer Laura Thompson
  by artist: David Beach
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  by artist: Daniel Marcus
  by artist: Jeff McCarthy
  by artist: Nancy Opel
  in album: Urinetown The Musical (Original Broadway Cast Recording)
    type: MusicAlbum
    date published: 2001-07-09
  popularity: 25
  genre: musicals
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  subject of: OpenTimestamps Proof of Existence
  audio: Don't Be the Bunny
track: Why Did I Listen to That Man?

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 0xc44cc065cebc6295a313d134a4500949d1511f7518f52e02fdfc906c41f4829c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USBC10100402.
date published: 2026-06-13T12:53:06Z

Don't Be the Bunny
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  value: 136.564
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additional property: Time Signature
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  value: 5
additional property: Danceability
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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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Why Did I Listen to That Man?
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duration ms: 188706
explicit: false
by artist: Nancy Opel
by artist: John Deyle
by artist: Hunter Foster
by artist: Jeff McCarthy
by artist: Daniel Marcus
by artist: Lawrence Street
by artist: Victor W. Hawks
by artist: Jennifer Laura Thompson
in album: Urinetown The Musical (Original Broadway Cast Recording)
  type: MusicAlbum
  date published: 2001-07-09
popularity: 25
isrc code: USBC10100407
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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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb091124e6b7aa531fcf018bb02f796225388b92d19c08f201180487ad7554f42. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USBC10100407.
  date published: 2026-06-13T12:53:06Z
audio: Why Did I Listen to That Man?
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