K•Rex
type: MusicGroup
popularity: 18
followers: 426
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x742bf9c510ddb1fc396ad8ca0c9c88114292aaf577efe1b5f38627ba2ce0fdaa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04e6c403-4c83-4e91-9e9f-7f0e5d244650.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/04e6c403-4c83-4e91-9e9f-7f0e5d244650.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/04e6c403-4c83-4e91-9e9f-7f0e5d244650
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x742bf9c510ddb1fc396ad8ca0c9c88114292aaf577efe1b5f38627ba2ce0fdaa","name":"K•Rex","registered_at":"2026-06-14T04:56:38Z","symbol":"NIM0345277","token_address":"0x225860787792f83e177ab59ea6e183ac6bf2939f","type":"artist","uuid":"04e6c403-4c83-4e91-9e9f-7f0e5d244650"}
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 0x742bf9c510ddb1fc396ad8ca0c9c88114292aaf577efe1b5f38627ba2ce0fdaa. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04e6c403-4c83-4e91-9e9f-7f0e5d244650.json and https://artists.proofprofile.net/proofs/artist/04e6c403-4c83-4e91-9e9f-7f0e5d244650.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0x742bf9c510ddb1fc396ad8ca0c9c88114292aaf577efe1b5f38627ba2ce0fdaa","name":"K•Rex","registered_at":"2026-06-14T04:56:38Z","symbol":"NIM0345277","token_address":"0x225860787792f83e177ab59ea6e183ac6bf2939f","type":"artist","uuid":"04e6c403-4c83-4e91-9e9f-7f0e5d244650"}
album: Cat on your Bed
  type: MusicAlbum
  date published: 2024-10-02
album: Come Get Your Love!
  type: MusicAlbum
  date published: 2025-01-17
  track: Come Get Your Love!
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202122
    explicit: false
    by artist: K•Rex
    in album: Come Get Your Love!
      type: MusicAlbum
      date published: 2025-01-17
    isrc code: QT3F42458569
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:55:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x669173d5d63ee2a10392ff420a693ae75ce9c1f7cf7cda6812834f4d2c715243
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958152
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958152
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42458569
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T12:00:27Z
    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 0x669173d5d63ee2a10392ff420a693ae75ce9c1f7cf7cda6812834f4d2c715243. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QT3F42458569.
      date published: 2026-07-15T12:00:27Z
    audio: Come Get Your Love!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.986
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.801
      additional property: Energy
        type: PropertyValue
        value: 0.78
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.349
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.793
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.53
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Stop The War
  type: MusicAlbum
  date published: 2025-02-21
album: K•Rex: Stop The War
  type: MusicAlbum
  date published: 2025-02-21
  track: Come Get Your Love!
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202122
    explicit: false
    by artist: K•Rex
    in album: K•Rex: Stop The War
      type: MusicAlbum
      date published: 2025-02-21
    isrc code: QT3F42458569
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x669173d5d63ee2a10392ff420a693ae75ce9c1f7cf7cda6812834f4d2c715243
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F42458569
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T09:45:25Z
    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 0x669173d5d63ee2a10392ff420a693ae75ce9c1f7cf7cda6812834f4d2c715243. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/QT3F42458569.
      date published: 2026-07-20T09:45:25Z
    audio: Come Get Your Love!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.986
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.801
      additional property: Energy
        type: PropertyValue
        value: 0.78
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.349
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: Cat on your Bed
album: Catfish Town
album: Louisiana
album: Mr. Moon
album: STOP THE WAR (Latin Version)
album: Standing on this Bridge

Liveness
type: PropertyValue
value: 0.087

Valence (Positivity)
type: PropertyValue
value: 0.793

Loudness (dB)
type: PropertyValue
value: -5.53

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Cat on your Bed
type: MusicRecording
duration: PT3M20S
duration ms: 200500
explicit: false
by artist: K•Rex
in album: K•Rex: Stop The War
  type: MusicAlbum
  date published: 2025-02-21
isrc code: QZWFL2474869
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-21T05:37:05+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b6cf4d300f68bf988e631f2c962ab70d178972fd2818500c2c1d8e22f1aad66
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958975
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958975
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFL2474869
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-21T06:12:52Z
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 0x5b6cf4d300f68bf988e631f2c962ab70d178972fd2818500c2c1d8e22f1aad66. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZWFL2474869.
  date published: 2026-07-21T06:12:52Z
audio: Cat on your Bed
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 75.988
  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: 0.726
  additional property: Energy
    type: PropertyValue
    value: 0.703
  additional property: Speechiness
    type: PropertyValue
    value: 0.059
  additional property: Acousticness
    type: PropertyValue
    value: 0.141
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.313
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.895
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.558
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Catfish Town
type: MusicAlbum
date published: 2025-05-08

Louisiana
type: MusicAlbum
date published: 2025-06-13
track: Louisiana
  type: MusicRecording
  duration: PT3M43S
  duration ms: 223483
  explicit: false
  by artist: K•Rex
  in album: Louisiana
    type: MusicAlbum
    date published: 2025-06-13
  isrc code: QZRP42509070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T09:47:52+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9788201f739eee00c00f253509640d242c421136a8b5d114e35749487345fbd7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958397
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958397
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42509070
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T10:29:45Z
  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 0x9788201f739eee00c00f253509640d242c421136a8b5d114e35749487345fbd7. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZRP42509070.
    date published: 2026-07-17T10:29:45Z
  audio: Louisiana
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 88.999
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.773
    additional property: Energy
      type: PropertyValue
      value: 0.606
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.227
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.008
    additional property: Liveness
      type: PropertyValue
      value: 0.079
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.886
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.463
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

Mr. Moon
type: MusicAlbum
date published: 2025-08-15

STOP THE WAR (Latin Version)
type: MusicAlbum
date published: 2025-09-05

Standing on this Bridge
type: MusicAlbum
date published: 2025-10-22