Leen
type: MusicGroup
popularity: 5
followers: 351
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf95d8cff8876bbb40b07505c656688117f447b5378d31b271ca9b2e563f1de27
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5932d0ed-2518-47bb-86f6-6f1cf60fe6ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5932d0ed-2518-47bb-86f6-6f1cf60fe6ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5932d0ed-2518-47bb-86f6-6f1cf60fe6ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0xf95d8cff8876bbb40b07505c656688117f447b5378d31b271ca9b2e563f1de27. 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/5932d0ed-2518-47bb-86f6-6f1cf60fe6ae.json and https://artists.proofprofile.net/proofs/artist/5932d0ed-2518-47bb-86f6-6f1cf60fe6ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Refugee
  type: MusicAlbum
  date published: 2020-07-12
album: Refugee (Stripped)
  type: MusicAlbum
  date published: 2020-10-19
album: Your Hell
  type: MusicAlbum
  date published: 2021-11-12
album: Your Hell
  type: MusicAlbum
  date published: 2021-11-12
album: Still Make Your Tea
  type: MusicAlbum
  date published: 2022-04-01
album: Still Make Your Tea
  type: MusicAlbum
  date published: 2022-04-01
  track: Still Make Your Tea
    type: MusicRecording
    duration: PT3M35S
    duration ms: 215688
    explicit: false
    by artist: Leen
    in album: Still Make Your Tea
      type: MusicAlbum
      date published: 2022-04-01
    isrc code: SE4G42201701
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:01:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa39470df852a458e522527e6f194dd51a677f8c7e18759b7f8ab96a8da845306
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958771
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958771
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE4G42201701
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:01:41Z
    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 0xa39470df852a458e522527e6f194dd51a677f8c7e18759b7f8ab96a8da845306. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:01:41Z), 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/SE4G42201701.
      date published: 2026-07-19T22:01:41Z
    audio: Still Make Your Tea
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 179.167
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.341
      additional property: Energy
        type: PropertyValue
        value: 0.39
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.506
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.271
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.164
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.807
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Way Too Loud
  type: MusicAlbum
  date published: 2022-09-23
album: Way Too Loud
  type: MusicAlbum
  date published: 2022-09-23
album: Natt och dag
  type: MusicAlbum
  date published: 2022-11-04
album: Natt och dag
  type: MusicAlbum
  date published: 2022-11-04
album: Smoke
  type: MusicAlbum
  date published: 2023-04-28
album: Why Can't You Fly?
  type: MusicAlbum
  date published: 2024-03-22
album: Crystal Fight
  type: MusicAlbum
  date published: 2025-02-07
album: Kano Youlo
  type: MusicAlbum
  date published: 2025-04-25
album: SAXOPHONE
  type: MusicAlbum
  date published: 2025-10-31