QUARTERBACKS
type: MusicGroup
popularity: 6
followers: 103
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c4424584991f1611dcf897e61d72f3832810a0002ac8ab3c3068dce0ab39ec3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954729
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954729
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb8fc231-e56c-4bda-910e-3cde79ec9daa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb8fc231-e56c-4bda-910e-3cde79ec9daa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb8fc231-e56c-4bda-910e-3cde79ec9daa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:16:07Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4424584991f1611dcf897e61d72f3832810a0002ac8ab3c3068dce0ab39ec3. Chain 2 (Bitcoin): anchored in block 954729 (2026-06-21T18:16:07Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb8fc231-e56c-4bda-910e-3cde79ec9daa.json and https://artists.proofprofile.net/proofs/artist/fb8fc231-e56c-4bda-910e-3cde79ec9daa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:16:07Z
album: American Football Gridiron Video Game Soundtrack
  type: MusicAlbum
  date published: 2015-02-23
  track: Rock and Roll, Pt. 2 (From "Madden 11")
    type: MusicRecording
    duration: PT2M42S
    duration ms: 162028
    explicit: false
    by artist: QUARTERBACKS
    in album: American Football Gridiron Video Game Soundtrack
      type: MusicAlbum
      date published: 2015-02-23
    isrc code: QMVRR1531920
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T19:56:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa08c110f2f7626e7d277aa114a95b87b1fcea89c8e3b3c05433fcc35ca09c423
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958612
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958612
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1531920
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T21:29:37Z
    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 0xa08c110f2f7626e7d277aa114a95b87b1fcea89c8e3b3c05433fcc35ca09c423. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QMVRR1531920.
      date published: 2026-07-18T21:29:37Z
    audio: Rock and Roll, Pt. 2 (From "Madden 11")
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.195
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.582
      additional property: Energy
        type: PropertyValue
        value: 0.483
      additional property: Speechiness
        type: PropertyValue
        value: 0.119
      additional property: Acousticness
        type: PropertyValue
        value: 0.59
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.694
      additional property: Liveness
        type: PropertyValue
        value: 0.16
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.674
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.164
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Remember the Name (From "Madden 09")
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228000
    explicit: false
    by artist: QUARTERBACKS
    in album: American Football Gridiron Video Game Soundtrack
      type: MusicAlbum
      date published: 2015-02-23
    isrc code: QMVRR1435094
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T10:41:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x37e781ec1a17c68a080ef452023c759c71a7c756c57eda9b2007582fa2cd2654
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958404
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958404
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1435094
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T11:34:58Z
    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 0x37e781ec1a17c68a080ef452023c759c71a7c756c57eda9b2007582fa2cd2654. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QMVRR1435094.
      date published: 2026-07-17T11:34:58Z
    audio: Remember the Name (From "Madden 09")
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.417
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.684
      additional property: Energy
        type: PropertyValue
        value: 0.729
      additional property: Speechiness
        type: PropertyValue
        value: 0.245
      additional property: Acousticness
        type: PropertyValue
        value: 0.164
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.185
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.899
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.623
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name

Mode Name
type: PropertyValue
value: Major