Martin Birch
type: MusicGroup
description: Martin Peter Birch (27 December 19489 August 2020) was a British music producer and sound engineer. He became renowned for engineering and producing albums recorded predominantly by British rock and
popularity: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xebd8f2d2a808d325d3e572c9666c3a1b0e94b7109585637f5dee670918180cc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953843
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953843
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/004a5e48-fc78-4001-afd0-018eb0334d9c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/004a5e48-fc78-4001-afd0-018eb0334d9c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/004a5e48-fc78-4001-afd0-018eb0334d9c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:27:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xebd8f2d2a808d325d3e572c9666c3a1b0e94b7109585637f5dee670918180cc2","name":"Martin Birch","registered_at":"2026-06-15T13:48:59Z","symbol":"NIM0727569","token_address":"0x97d6cf76b04a1a9819809a7f87d71e0decbf62c2","type":"artist","uuid":"004a5e48-fc78-4001-afd0-018eb0334d9c"}
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 0xebd8f2d2a808d325d3e572c9666c3a1b0e94b7109585637f5dee670918180cc2. Chain 2 (Bitcoin): anchored in block 953843 (2026-06-15T22:27:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/004a5e48-fc78-4001-afd0-018eb0334d9c.json and https://artists.proofprofile.net/proofs/artist/004a5e48-fc78-4001-afd0-018eb0334d9c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T22:27:31Z
  text: {"copyright_id":"0xebd8f2d2a808d325d3e572c9666c3a1b0e94b7109585637f5dee670918180cc2","name":"Martin Birch","registered_at":"2026-06-15T13:48:59Z","symbol":"NIM0727569","token_address":"0x97d6cf76b04a1a9819809a7f87d71e0decbf62c2","type":"artist","uuid":"004a5e48-fc78-4001-afd0-018eb0334d9c"}
album: Impairment
  type: MusicAlbum
  date published: 2025-07-18
  track: Impairment
    type: MusicRecording
    duration: PT2M4S
    duration ms: 124000
    explicit: false
    by artist: Martin Birch
    in album: Impairment
      type: MusicAlbum
      date published: 2025-07-18
    isrc code: DEZN82527061
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T13:37:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbb0d0a3d6c13e2015870d0e80c5ad84b1e8fdeb22588194659e16f5c967dc472
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958303
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958303
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZN82527061
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T16:39:24Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      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 0xbb0d0a3d6c13e2015870d0e80c5ad84b1e8fdeb22588194659e16f5c967dc472. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/DEZN82527061.
      date published: 2026-07-16T16:39:24Z
    audio: Impairment
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.991
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.685
      additional property: Energy
        type: PropertyValue
        value: 0.388
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.07
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.963
      additional property: Liveness
        type: PropertyValue
        value: 0.12
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.939
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.024
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor