Ultras
type: MusicGroup
description: thumb|Ultras of Neftochimic Burgas at Lazur Stadium in Burgas, Bulgaria, 2014 right|thumb|Ultras of Lazio at Olympic Stadium of Rome, Italy in 2007 Ultras are a type of association football fans who a
popularity: 2
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ae6c22e415a562f6b2a9834a121793e85f0f9dc4ad05e812cb8c6aa68d6a761
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/882703cb-2ca1-4750-b485-e68d61daf83c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/882703cb-2ca1-4750-b485-e68d61daf83c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/882703cb-2ca1-4750-b485-e68d61daf83c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
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 0x9ae6c22e415a562f6b2a9834a121793e85f0f9dc4ad05e812cb8c6aa68d6a761. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/882703cb-2ca1-4750-b485-e68d61daf83c.json and https://artists.proofprofile.net/proofs/artist/882703cb-2ca1-4750-b485-e68d61daf83c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
album: With The Sound
  type: MusicAlbum
  date published: 2025-07-25
  track: With The Sound
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220516
    explicit: false
    by artist: Ultras
    in album: With The Sound
      type: MusicAlbum
      date published: 2025-07-25
    isrc code: QMDA62559962
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      value: 2026-07-20T04:44:01+00:00
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    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958825
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMDA62559962
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T04:55:29Z
    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 0xe0a319379fd431d91686beb5095099f4f4f6e3c6350c2a63c695320bf037839f. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/QMDA62559962.
      date published: 2026-07-20T04:55:29Z
    audio: With The Sound
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 161.967
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.395
      additional property: Energy
        type: PropertyValue
        value: 0.737
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.136
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.741
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.28
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Who Did It
  type: MusicAlbum
  date published: 2025-09-12
album: The Dream
  type: MusicAlbum
  date published: 2025-11-07