Barry Martyn
type: MusicGroup
genre: ragtime
description: right|thumb|Martyn at the New Orleans Jazz & Heritage Festival Barry Martyn (born Barry Martyn Godfrey; 23 February 1941 – 17 July 2023) was an English jazz drummer, active principally on the New Orle
popularity: 15
followers: 291
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1c3b2a7c073a4f561b339c3cfa1de53cd18c549a673571e67c8f2d1e9eb58d1a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953638
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953638
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39a52cff-304c-4a6e-86a2-8d4f43436077.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39a52cff-304c-4a6e-86a2-8d4f43436077.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39a52cff-304c-4a6e-86a2-8d4f43436077
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:10:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1c3b2a7c073a4f561b339c3cfa1de53cd18c549a673571e67c8f2d1e9eb58d1a","name":"Barry Martyn","registered_at":"2026-06-14T10:29:37Z","symbol":"NIM0424674","token_address":"0x8ed287b2c500824eb8548149ed5150110283cce0","type":"artist","uuid":"39a52cff-304c-4a6e-86a2-8d4f43436077"}
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 0x1c3b2a7c073a4f561b339c3cfa1de53cd18c549a673571e67c8f2d1e9eb58d1a. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39a52cff-304c-4a6e-86a2-8d4f43436077.json and https://artists.proofprofile.net/proofs/artist/39a52cff-304c-4a6e-86a2-8d4f43436077.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:10:39Z
  text: {"copyright_id":"0x1c3b2a7c073a4f561b339c3cfa1de53cd18c549a673571e67c8f2d1e9eb58d1a","name":"Barry Martyn","registered_at":"2026-06-14T10:29:37Z","symbol":"NIM0424674","token_address":"0x8ed287b2c500824eb8548149ed5150110283cce0","type":"artist","uuid":"39a52cff-304c-4a6e-86a2-8d4f43436077"}
album: Barry Martyn on Tour 1969
  type: MusicAlbum
  date published: 1994
album: Barry Martyn's Legends of Jazz
  type: MusicAlbum
  date published: 1995
album: Vintage Barry Martyn 1959-1970
  type: MusicAlbum
  date published: 1996
album: On the Sophisticated Slide
  type: MusicAlbum
  date published: 1997
album: Where He Leads Me
  type: MusicAlbum
  date published: 2011-11-01