Echo Void
type: MusicGroup
popularity: 3
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x911fb8f43274f7c47cd9ee8b86ee040a7887dc255751ab1a484d94615a400d18
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d6b5832-4324-4ba2-8d61-2dd59934b4ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d6b5832-4324-4ba2-8d61-2dd59934b4ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d6b5832-4324-4ba2-8d61-2dd59934b4ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x911fb8f43274f7c47cd9ee8b86ee040a7887dc255751ab1a484d94615a400d18","name":"Echo Void","registered_at":"2026-06-17T09:23:33Z","symbol":"NIM1351479","token_address":"0x90b2449c9522b1d4a0eacd233c308311cd9cb56c","type":"artist","uuid":"7d6b5832-4324-4ba2-8d61-2dd59934b4ae"}
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 0x911fb8f43274f7c47cd9ee8b86ee040a7887dc255751ab1a484d94615a400d18. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d6b5832-4324-4ba2-8d61-2dd59934b4ae.json and https://artists.proofprofile.net/proofs/artist/7d6b5832-4324-4ba2-8d61-2dd59934b4ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0x911fb8f43274f7c47cd9ee8b86ee040a7887dc255751ab1a484d94615a400d18","name":"Echo Void","registered_at":"2026-06-17T09:23:33Z","symbol":"NIM1351479","token_address":"0x90b2449c9522b1d4a0eacd233c308311cd9cb56c","type":"artist","uuid":"7d6b5832-4324-4ba2-8d61-2dd59934b4ae"}
album: Mega Tragedi
  type: MusicAlbum
  date published: 2025-03-15
  track: Mega Tragedi
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242059
    explicit: false
    by artist: Echo Void
    in album: Mega Tragedi
      type: MusicAlbum
      date published: 2025-03-15
    isrc code: GXD7V2513558
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T23:13:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfcb7b164c328908f20c70bd8ddc57502ac8cca162a34a4869879125c3a2930a3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958627
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958627
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GXD7V2513558
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T23:33:54Z
    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 0xfcb7b164c328908f20c70bd8ddc57502ac8cca162a34a4869879125c3a2930a3. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/GXD7V2513558.
      date published: 2026-07-18T23:33:54Z
    audio: Mega Tragedi
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.02
      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: 0.664
      additional property: Energy
        type: PropertyValue
        value: 0.863
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.183
      additional property: Liveness
        type: PropertyValue
        value: 0.626
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.34
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.018
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major