Luden&Somno
type: MusicGroup
genre: black metal
popularity: 8
followers: 321
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5183fcd0eeb4594be74c553d354e7d5a67d0a429e76765d12a52fff8fae2701a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/362bfd25-3c36-4f1e-80d1-c4fe7b002983.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/362bfd25-3c36-4f1e-80d1-c4fe7b002983.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/362bfd25-3c36-4f1e-80d1-c4fe7b002983
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
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 0x5183fcd0eeb4594be74c553d354e7d5a67d0a429e76765d12a52fff8fae2701a. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/362bfd25-3c36-4f1e-80d1-c4fe7b002983.json and https://artists.proofprofile.net/proofs/artist/362bfd25-3c36-4f1e-80d1-c4fe7b002983.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Dorimo Shiro
  type: MusicAlbum
  date published: 2023-10-25
album: Dark Sea
  type: MusicAlbum
  date published: 2023-11-26
  track: Dark Sea
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207826
    explicit: false
    by artist: Luden&Somno
    in album: Dark Sea
      type: MusicAlbum
      date published: 2023-11-26
    genre: black metal
    isrc code: TCAHQ2302491
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T14:49:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd0c90740194fd9b99b7f502908bf38c11180d181d893a559881679ab0a986657
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958170
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958170
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHQ2302491
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:52:38Z
    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 0xd0c90740194fd9b99b7f502908bf38c11180d181d893a559881679ab0a986657. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:52:38Z), 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/TCAHQ2302491.
      date published: 2026-07-15T17:52:38Z
    audio: Dark Sea
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.092
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.409
      additional property: Energy
        type: PropertyValue
        value: 0.573
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.302
      additional property: Liveness
        type: PropertyValue
        value: 0.153
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.181
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.831
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Obey
  type: MusicAlbum
  date published: 2024-02-15
album: Void
  type: MusicAlbum
  date published: 2024-03-15
  track: Void
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159428
    explicit: false
    by artist: Luden&Somno
    in album: Void
      type: MusicAlbum
      date published: 2024-03-15
    genre: black metal
    isrc code: TCAHZ2465274
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:40:41+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeae026648ea02a2d0670cadccc81a6974d81e92d72883e6b19347d2577ca0553
    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/TCAHZ2465274
    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 0xeae026648ea02a2d0670cadccc81a6974d81e92d72883e6b19347d2577ca0553. 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/TCAHZ2465274.
      date published: 2026-07-05T19:27:56Z
    audio: Void
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.924
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.307
      additional property: Energy
        type: PropertyValue
        value: 0.627
      additional property: Speechiness
        type: PropertyValue
        value: 0.048
      additional property: Acousticness
        type: PropertyValue
        value: 0.058
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.27
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Yıkılmadım
album: Мел йог1у буьйса
album: Хıу де ас
album: Нана
album: Дог а, кхетам а
album: Я убегал
album: Сознание

Liveness
type: PropertyValue
value: 0.102

Valence (Positivity)
type: PropertyValue
value: 0.166

Loudness (dB)
type: PropertyValue
value: -10.851

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Yıkılmadım
type: MusicAlbum
date published: 2024-04-26

Мел йог1у буьйса
type: MusicAlbum
date published: 2024-10-24

Хıу де ас
type: MusicAlbum
date published: 2024-11-22

Нана
type: MusicAlbum
date published: 2024-12-27

Дог а, кхетам а
type: MusicAlbum
date published: 2025-02-24

Я убегал
type: MusicAlbum
date published: 2025-03-28

Сознание
type: MusicAlbum
date published: 2025-07-11