Archie Keffert
type: MusicGroup
popularity: 2
followers: 28
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x28aa9daf8651f8696fea091298430f82d3a26c0a7a5fde31ec403113aab744ea
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e43e4855-f5cf-41ca-8523-e2f804e577c9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e43e4855-f5cf-41ca-8523-e2f804e577c9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e43e4855-f5cf-41ca-8523-e2f804e577c9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x28aa9daf8651f8696fea091298430f82d3a26c0a7a5fde31ec403113aab744ea","name":"Archie Keffert","registered_at":"2026-06-21T08:12:15Z","symbol":"NIM1871579","token_address":"0x5329795a0f740b36fe4373d18f7f4cc2fc84263a","type":"artist","uuid":"e43e4855-f5cf-41ca-8523-e2f804e577c9"}
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 0x28aa9daf8651f8696fea091298430f82d3a26c0a7a5fde31ec403113aab744ea. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e43e4855-f5cf-41ca-8523-e2f804e577c9.json and https://artists.proofprofile.net/proofs/artist/e43e4855-f5cf-41ca-8523-e2f804e577c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x28aa9daf8651f8696fea091298430f82d3a26c0a7a5fde31ec403113aab744ea","name":"Archie Keffert","registered_at":"2026-06-21T08:12:15Z","symbol":"NIM1871579","token_address":"0x5329795a0f740b36fe4373d18f7f4cc2fc84263a","type":"artist","uuid":"e43e4855-f5cf-41ca-8523-e2f804e577c9"}
album: Starts with You
  type: MusicAlbum
  date published: 2023-08-31
album: Down by the Willow
  type: MusicAlbum
  date published: 2024-11-08
  track: Down by the Willow
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206000
    explicit: false
    by artist: Archie Keffert
    in album: Down by the Willow
      type: MusicAlbum
      date published: 2024-11-08
    isrc code: GBGSN2400209
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T00:02:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x85528c631de0cb9c8fe91bdf8b9bc08203a6b6c7f5aec821c143b58f229f57b0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959080
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959080
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGSN2400209
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T00:07:05Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85528c631de0cb9c8fe91bdf8b9bc08203a6b6c7f5aec821c143b58f229f57b0. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/GBGSN2400209.
      date published: 2026-07-22T00:07:05Z
    audio: Down by the Willow
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.041
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.504
      additional property: Energy
        type: PropertyValue
        value: 0.557
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.191
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.538
      additional property: Liveness
        type: PropertyValue
        value: 0.204
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.183
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.977
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Get out of My Space
  type: MusicAlbum
  date published: 2025-05-09