21KNM
type: MusicGroup
popularity: 12
followers: 343
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa2619a4a14f4c36092a774fed6f80f4589453ddc6e0fbc1944d6c87efa190c42
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6c07e9a-1b14-4175-ac5f-427fc8148291.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d6c07e9a-1b14-4175-ac5f-427fc8148291.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d6c07e9a-1b14-4175-ac5f-427fc8148291
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
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 0xa2619a4a14f4c36092a774fed6f80f4589453ddc6e0fbc1944d6c87efa190c42. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d6c07e9a-1b14-4175-ac5f-427fc8148291.json and https://artists.proofprofile.net/proofs/artist/d6c07e9a-1b14-4175-ac5f-427fc8148291.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
album: MAT Í LUUX
  type: MusicAlbum
  date published: 2024-02-22
  track: MAT Í LUUX
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193846
    explicit: true
    by artist: 21KNM
    in album: MAT Í LUUX
      type: MusicAlbum
      date published: 2024-02-22
    isrc code: DKBCA2400305
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T19:52:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3201e15e3eac02344a82291f5020f3d0f74f52d7d37d4cd52a8dc39f84530747
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKBCA2400305
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0x3201e15e3eac02344a82291f5020f3d0f74f52d7d37d4cd52a8dc39f84530747. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DKBCA2400305.
      date published: 2026-07-20T21:15:01Z
    audio: MAT Í LUUX
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.964
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.88
      additional property: Energy
        type: PropertyValue
        value: 0.515
      additional property: Speechiness
        type: PropertyValue
        value: 0.315
      additional property: Acousticness
        type: PropertyValue
        value: 0.342
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.664
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.481
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.613
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 21KNM
  type: MusicAlbum
  date published: 2024-03-07
  track: B.Í.L
    type: MusicRecording
    duration: PT2M20S
    duration ms: 140000
    explicit: true
    by artist: 21KNM
    in album: 21KNM
      type: MusicAlbum
      date published: 2024-03-07
    isrc code: DKBCA2400301
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T12:20:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xef64a4969adf233c1155cc1c21e351ef4cc6427995c1025ad22539b88149140e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958547
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958547
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKBCA2400301
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T12:44:05Z
    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 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 0xef64a4969adf233c1155cc1c21e351ef4cc6427995c1025ad22539b88149140e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/DKBCA2400301.
      date published: 2026-07-18T12:44:05Z
    audio: B.Í.L
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.039
      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: 0.915
      additional property: Energy
        type: PropertyValue
        value: 0.673
      additional property: Speechiness
        type: PropertyValue
        value: 0.17
      additional property: Acousticness
        type: PropertyValue
        value: 0.225
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.123
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.806
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.789
      additional property: Key Name
      additional property: Mode Name
album: Effo Date
album: CAMPING
album: GEKKURIN
album: KANN NAKAÐ MEIRA

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Effo Date
type: MusicAlbum
date published: 2024-06-20
track: Effo Date
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221538
  explicit: true
  by artist: 21KNM
  in album: Effo Date
    type: MusicAlbum
    date published: 2024-06-20
  isrc code: DKBCA2403601
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T08:10:42+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x151ad641e98604cbe2b301ebe9b9ebf8bbea03db1d899e300c313a8fd532e153
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKBCA2403601
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  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 0x151ad641e98604cbe2b301ebe9b9ebf8bbea03db1d899e300c313a8fd532e153. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DKBCA2403601.
    date published: 2026-07-03T08:56:35Z
  audio: Effo Date
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.951
    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: 0.718
    additional property: Energy
      type: PropertyValue
      value: 0.46
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.421
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.073
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.502
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.125
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

CAMPING
type: MusicAlbum
date published: 2024-12-05
track: CAMPING
  type: MusicRecording
  duration: PT3M11S
  duration ms: 191373
  explicit: true
  by artist: 21KNM
  in album: CAMPING
    type: MusicAlbum
    date published: 2024-12-05
  isrc code: DKBCA2403602
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T18:52:47+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa17d023c45f7f6e418e49b97bafcdac3eff5be352bc3b6c1636b8c4ccd243cf0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958444
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958444
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKBCA2403602
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:12:23Z
  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 0xa17d023c45f7f6e418e49b97bafcdac3eff5be352bc3b6c1636b8c4ccd243cf0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DKBCA2403602.
    date published: 2026-07-17T19:12:23Z
  audio: CAMPING
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 92.015
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.818
    additional property: Energy
      type: PropertyValue
      value: 0.486
    additional property: Speechiness
      type: PropertyValue
      value: 0.229
    additional property: Acousticness
      type: PropertyValue
      value: 0.131
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.233
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.659
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.226
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

GEKKURIN
type: MusicAlbum
date published: 2025-04-11

KANN NAKAÐ MEIRA
type: MusicAlbum
date published: 2025-05-16