Marc Seales
type: MusicGroup
description: Marc Seales is an American jazz pianist associated with post-bop. He was a student at Western Washington University, serving his senior year from 1977 to 1978. Background As a Professor of Jazz Pia
popularity: 2
followers: 461
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf362b0be51d2fc588afc51a6f61d0cd046bafef1219cfb57f0b29f8155d4de2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25d1c522-186b-4441-ad22-73213ea42290.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/25d1c522-186b-4441-ad22-73213ea42290.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/25d1c522-186b-4441-ad22-73213ea42290
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf362b0be51d2fc588afc51a6f61d0cd046bafef1219cfb57f0b29f8155d4de2","name":"Marc Seales","registered_at":"2026-06-16T02:40:07Z","symbol":"NIM0911606","token_address":"0xffea4c8af38c3da4f5694e2f63b8bd35581881aa","type":"artist","uuid":"25d1c522-186b-4441-ad22-73213ea42290"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf362b0be51d2fc588afc51a6f61d0cd046bafef1219cfb57f0b29f8155d4de2. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25d1c522-186b-4441-ad22-73213ea42290.json and https://artists.proofprofile.net/proofs/artist/25d1c522-186b-4441-ad22-73213ea42290.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:18:37Z
  text: {"copyright_id":"0xcf362b0be51d2fc588afc51a6f61d0cd046bafef1219cfb57f0b29f8155d4de2","name":"Marc Seales","registered_at":"2026-06-16T02:40:07Z","symbol":"NIM0911606","token_address":"0xffea4c8af38c3da4f5694e2f63b8bd35581881aa","type":"artist","uuid":"25d1c522-186b-4441-ad22-73213ea42290"}
album: The Paris Suite
  type: MusicAlbum
  date published: 2009-01-30
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  type: MusicAlbum
  date published: 2014-01-21
album: American Songs: Place & Time, Vol. 3
  type: MusicAlbum
  date published: 2015-01-20
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  type: MusicAlbum
  date published: 2025-07-28
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  type: MusicAlbum
  date published: 2025-08-22