Zack Medlin
type: MusicGroup
popularity: 3
followers: 157
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x861f9e10330f31089ce8d32eac81169e60d78006ddaf889c54c51f69933bef43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53f90e82-db80-4860-81e1-5df9e2aea3ea.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/53f90e82-db80-4860-81e1-5df9e2aea3ea.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/53f90e82-db80-4860-81e1-5df9e2aea3ea
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x861f9e10330f31089ce8d32eac81169e60d78006ddaf889c54c51f69933bef43","name":"Zack Medlin","registered_at":"2026-06-16T18:55:53Z","symbol":"NIM1144505","token_address":"0xeee453692498ea1352a4c5c0a78e14bec813a6aa","type":"artist","uuid":"53f90e82-db80-4860-81e1-5df9e2aea3ea"}
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 0x861f9e10330f31089ce8d32eac81169e60d78006ddaf889c54c51f69933bef43. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53f90e82-db80-4860-81e1-5df9e2aea3ea.json and https://artists.proofprofile.net/proofs/artist/53f90e82-db80-4860-81e1-5df9e2aea3ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x861f9e10330f31089ce8d32eac81169e60d78006ddaf889c54c51f69933bef43","name":"Zack Medlin","registered_at":"2026-06-16T18:55:53Z","symbol":"NIM1144505","token_address":"0xeee453692498ea1352a4c5c0a78e14bec813a6aa","type":"artist","uuid":"53f90e82-db80-4860-81e1-5df9e2aea3ea"}
album: voice memos
  type: MusicAlbum
  date published: 2022-07-15
  track: voice memos
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236575
    explicit: false
    by artist: Zack Medlin
    in album: voice memos
      type: MusicAlbum
      date published: 2022-07-15
    isrc code: QZK6G2279946
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T19:43:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x44b6d55ce1bb2ff4857f433f4a6f7c30004b86c4643e931c83631b818dd4450e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958607
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958607
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2279946
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T21:01:11Z
    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 0x44b6d55ce1bb2ff4857f433f4a6f7c30004b86c4643e931c83631b818dd4450e. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZK6G2279946.
      date published: 2026-07-18T21:01:11Z
    audio: voice memos
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.661
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.722
      additional property: Energy
        type: PropertyValue
        value: 0.73
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.499
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.155
      additional property: Liveness
        type: PropertyValue
        value: 0.192
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.846
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.631
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: American Dream
  type: MusicAlbum
  date published: 2023-08-18
album: voice memos
  type: MusicAlbum
  date published: 2024-08-27
album: Phone Book
  type: MusicAlbum
  date published: 2025-07-31