CORE
type: MusicGroup
popularity: 22
followers: 1151
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb633557a2351a3646e35f0027528795896c104551d2d40053830f3badf36e51
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eb39c25b-64af-40a0-be07-d6a27eb56241.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eb39c25b-64af-40a0-be07-d6a27eb56241.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eb39c25b-64af-40a0-be07-d6a27eb56241
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0xbb633557a2351a3646e35f0027528795896c104551d2d40053830f3badf36e51. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb39c25b-64af-40a0-be07-d6a27eb56241.json and https://artists.proofprofile.net/proofs/artist/eb39c25b-64af-40a0-be07-d6a27eb56241.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Who We Are (Radio Single)
  type: MusicAlbum
  date published: 2022-04-02
album: Dead
  type: MusicAlbum
  date published: 2023-07-12
  track: Dead
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205405
    explicit: false
    by artist: CORE
    in album: Dead
      type: MusicAlbum
      date published: 2023-07-12
    isrc code: QZ3RV2399001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:33:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd5c322748fc87868569d17bb9a856e59d01e69402585f43aaeaf11fbed2ddb72
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ3RV2399001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0xd5c322748fc87868569d17bb9a856e59d01e69402585f43aaeaf11fbed2ddb72. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZ3RV2399001.
      date published: 2026-07-05T19:27:56Z
    audio: Dead
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.052
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.568
      additional property: Energy
        type: PropertyValue
        value: 0.897
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.327
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.414
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.967
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Save My Life
  type: MusicAlbum
  date published: 2023-07-14
album: Hammer Fist
  type: MusicAlbum
  date published: 2023-12-15
  track: Hammer Fist
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175575
    explicit: false
    by artist: CORE
    in album: Hammer Fist
      type: MusicAlbum
      date published: 2023-12-15
    isrc code: QZ3RV2399003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T23:19:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x542ba42f3853bbe6d981c7f684082f7521814eb0533030f7dfcffd30740909ba
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958079
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958079
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ3RV2399003
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T00:21:05Z
    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 0x542ba42f3853bbe6d981c7f684082f7521814eb0533030f7dfcffd30740909ba. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZ3RV2399003.
      date published: 2026-07-15T00:21:05Z
    audio: Hammer Fist
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 193.991
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.337
      additional property: Energy
        type: PropertyValue
        value: 0.974
      additional property: Speechiness
        type: PropertyValue
        value: 0.158
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.35
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: The End
album: What You Are
album: Wasted Time

Valence (Positivity)
type: PropertyValue
value: 0.13

Loudness (dB)
type: PropertyValue
value: -3.838

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

The End
type: MusicAlbum
date published: 2024-06-30

What You Are
type: MusicAlbum
date published: 2024-11-06

Wasted Time
type: MusicAlbum
date published: 2025-06-29