Letters VS. Numbers
type: MusicGroup
popularity: 5
followers: 200
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ea2ddcf3aacfbe04ceaccf216b92eef179ca7755a114e22f1deca1d42fd2215
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fab23528-747b-4099-ae09-a6694781f159.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fab23528-747b-4099-ae09-a6694781f159.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fab23528-747b-4099-ae09-a6694781f159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ea2ddcf3aacfbe04ceaccf216b92eef179ca7755a114e22f1deca1d42fd2215","name":"Letters VS. Numbers","registered_at":"2026-06-21T17:06:25Z","symbol":"NIM1981342","token_address":"0xf9fb88c1badd02c82d5c9ce7ab452b06cf88264a","type":"artist","uuid":"fab23528-747b-4099-ae09-a6694781f159"}
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 0x9ea2ddcf3aacfbe04ceaccf216b92eef179ca7755a114e22f1deca1d42fd2215. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fab23528-747b-4099-ae09-a6694781f159.json and https://artists.proofprofile.net/proofs/artist/fab23528-747b-4099-ae09-a6694781f159.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x9ea2ddcf3aacfbe04ceaccf216b92eef179ca7755a114e22f1deca1d42fd2215","name":"Letters VS. Numbers","registered_at":"2026-06-21T17:06:25Z","symbol":"NIM1981342","token_address":"0xf9fb88c1badd02c82d5c9ce7ab452b06cf88264a","type":"artist","uuid":"fab23528-747b-4099-ae09-a6694781f159"}
album: My Turn To Evil
  type: MusicAlbum
  date published: 2011-05-13
album: My Turn to Evil
  type: MusicAlbum
  date published: 2014-12-22
  track: My Turn to Evil
    type: MusicRecording
    duration: PT4M21S
    duration ms: 261146
    explicit: false
    by artist: Letters VS. Numbers
    in album: My Turn to Evil
      type: MusicAlbum
      date published: 2014-12-22
    isrc code: TCAEA1972607
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T01:40:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd5ce5538c08a0cdae9f09e41b55b78c1cdc740ed50ed3d0015d6344f59e38a07
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958224
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958224
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAEA1972607
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T02:28:43Z
    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 0xd5ce5538c08a0cdae9f09e41b55b78c1cdc740ed50ed3d0015d6344f59e38a07. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAEA1972607.
      date published: 2026-07-16T02:28:43Z
    audio: My Turn to Evil
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.958
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.453
      additional property: Energy
        type: PropertyValue
        value: 0.913
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.093
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.02
      additional property: Liveness
        type: PropertyValue
        value: 0.334
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.284
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.126
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Other People
  type: MusicAlbum
  date published: 2020-04-05
album: XXI
  type: MusicAlbum
  date published: 2020-10-01
album: Head Static
  type: MusicAlbum
  date published: 2020-12-01
album: I'll Find You
  type: MusicAlbum
  date published: 2021-02-14