Sam Leyden
type: MusicGroup
popularity: 2
followers: 145
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51a4965006ffb7661200800e45ee8168666830fb332c797f6926498f2ff94604
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a1c4ba9-999c-4402-95b8-ed65f4f872eb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a1c4ba9-999c-4402-95b8-ed65f4f872eb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a1c4ba9-999c-4402-95b8-ed65f4f872eb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51a4965006ffb7661200800e45ee8168666830fb332c797f6926498f2ff94604","name":"Sam Leyden","registered_at":"2026-06-15T22:37:49Z","symbol":"NIM0853738","token_address":"0xd798fd3d8ea1712e855b8839cef854083ce4c411","type":"artist","uuid":"1a1c4ba9-999c-4402-95b8-ed65f4f872eb"}
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 0x51a4965006ffb7661200800e45ee8168666830fb332c797f6926498f2ff94604. Chain 2 (Bitcoin): anchored in block 953915 (2026-06-16T08:36:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a1c4ba9-999c-4402-95b8-ed65f4f872eb.json and https://artists.proofprofile.net/proofs/artist/1a1c4ba9-999c-4402-95b8-ed65f4f872eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T08:36:32Z
  text: {"copyright_id":"0x51a4965006ffb7661200800e45ee8168666830fb332c797f6926498f2ff94604","name":"Sam Leyden","registered_at":"2026-06-15T22:37:49Z","symbol":"NIM0853738","token_address":"0xd798fd3d8ea1712e855b8839cef854083ce4c411","type":"artist","uuid":"1a1c4ba9-999c-4402-95b8-ed65f4f872eb"}
album: Silent Cries
  type: MusicAlbum
  date published: 2024-04-12
album: I Practice Writing Suicide Notes
  type: MusicAlbum
  date published: 2024-06-21
  track: I Practice Writing Suicide Notes
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179335
    explicit: false
    by artist: Sam Leyden
    in album: I Practice Writing Suicide Notes
      type: MusicAlbum
      date published: 2024-06-21
    isrc code: QZNWS2487358
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T05:19:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaa8bc4b3c830a3b2218fb644092cc9a7cadcf24209df34de62eb6fa5aa8d885f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959103
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959103
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2487358
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:56:21Z
    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 0xaa8bc4b3c830a3b2218fb644092cc9a7cadcf24209df34de62eb6fa5aa8d885f. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/QZNWS2487358.
      date published: 2026-07-22T05:56:21Z
    audio: I Practice Writing Suicide Notes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.378
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.63
      additional property: Energy
        type: PropertyValue
        value: 0.099
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.956
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.118
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.066
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.435
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: True Story
  type: MusicAlbum
  date published: 2024-08-23
album: Always a Home (At Christmas)
  type: MusicAlbum
  date published: 2024-11-20
album: Always a Home (At Christmas) Radio Edit
  type: MusicAlbum
  date published: 2024-12-09
album: Worth The Wait
  type: MusicAlbum
  date published: 2025-05-02
album: Worth The Wait (As Written)
  type: MusicAlbum
  date published: 2025-05-16
album: Colorado
  type: MusicAlbum
  date published: 2025-07-10