Sean McGowan
type: MusicGroup
description: Sean McGowan (born Sean Paul Michael McGowan; December 21, 1950), is an American activist and writer. Career As a writer, he was one of the subset of American writers to publish photographic novels,
popularity: 2
followers: 306
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c7fe6b5f995f318704e807db3a15cadfd727a4e3abb999ef512388343ad9285
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953864
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953864
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04552b0d-f2cc-4ca3-9945-a1aeef680c72.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04552b0d-f2cc-4ca3-9945-a1aeef680c72.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04552b0d-f2cc-4ca3-9945-a1aeef680c72
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T00:30:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c7fe6b5f995f318704e807db3a15cadfd727a4e3abb999ef512388343ad9285","name":"Sean McGowan","registered_at":"2026-06-15T14:56:45Z","symbol":"NIM0743744","token_address":"0x2e8bc6e8b46830dfbd219f4338160f17b9c274df","type":"artist","uuid":"04552b0d-f2cc-4ca3-9945-a1aeef680c72"}
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 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 0x0c7fe6b5f995f318704e807db3a15cadfd727a4e3abb999ef512388343ad9285. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04552b0d-f2cc-4ca3-9945-a1aeef680c72.json and https://artists.proofprofile.net/proofs/artist/04552b0d-f2cc-4ca3-9945-a1aeef680c72.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T00:30:31Z
  text: {"copyright_id":"0x0c7fe6b5f995f318704e807db3a15cadfd727a4e3abb999ef512388343ad9285","name":"Sean McGowan","registered_at":"2026-06-15T14:56:45Z","symbol":"NIM0743744","token_address":"0x2e8bc6e8b46830dfbd219f4338160f17b9c274df","type":"artist","uuid":"04552b0d-f2cc-4ca3-9945-a1aeef680c72"}
album: River Coffee
  type: MusicAlbum
  date published: 2001-01-01
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  type: MusicAlbum
  date published: 2008-01-01
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  type: MusicAlbum
  date published: 2011-08-12
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  type: MusicAlbum
  date published: 2022-01-03
album: Portmanteau
  type: MusicAlbum
  date published: 2023-09-07