Lauma
type: MusicGroup
description: 250px|thumb|right|"Laumė/The Good Witch", 1980 wooden sculpture by Romas Venckus at the Hill of Witches Latvian Lauma or Lithuanian Laumė, or Yotvingian Łauma is a fairy-like woodland spirit, and guar
popularity: 12
followers: 160
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x381a3d62d8d842ce9e1764be150119ad1e03d497fb80c5414be8b12a4db14fe3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953617
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953617
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d30b29b-e350-4116-a92a-6fdcb9dfd96f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d30b29b-e350-4116-a92a-6fdcb9dfd96f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d30b29b-e350-4116-a92a-6fdcb9dfd96f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T09:00:45Z
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 0x381a3d62d8d842ce9e1764be150119ad1e03d497fb80c5414be8b12a4db14fe3. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d30b29b-e350-4116-a92a-6fdcb9dfd96f.json and https://artists.proofprofile.net/proofs/artist/1d30b29b-e350-4116-a92a-6fdcb9dfd96f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:00:45Z
album: Coeur de miel
  type: MusicAlbum
  date published: 2019-08-22
album: Pixels
  type: MusicAlbum
  date published: 2020-03-30
album: Just a Guy (Make me forget)
  type: MusicAlbum
  date published: 2023-09-04
album: Porte 13
  type: MusicAlbum
  date published: 2024-04-12
album: Ma Dame
  type: MusicAlbum
  date published: 2024-07-02
album: C'est ça c'est ça
  type: MusicAlbum
  date published: 2024-08-01
album: Le ciel est rose
  type: MusicAlbum
  date published: 2024-09-15
  track: Le ciel est rose
    type: MusicRecording
    duration: PT3M42S
    duration ms: 222169
    explicit: false
    by artist: Lauma
    in album: Le ciel est rose
      type: MusicAlbum
      date published: 2024-09-15
    isrc code: QZTB82495087
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T16:59:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x024f845b98df887afe235c8085baa34cdf74f73030f0a4dba95dcd0e517ca566
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB82495087
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:01:42Z
    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 0x024f845b98df887afe235c8085baa34cdf74f73030f0a4dba95dcd0e517ca566. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:01:42Z), 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/QZTB82495087.
      date published: 2026-07-19T20:01:42Z
    audio: Le ciel est rose
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.853
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.717
      additional property: Energy
        type: PropertyValue
        value: 0.349
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.9
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.105
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.191
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.128
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Je t'aime trop
  type: MusicAlbum
  date published: 2025-06-02
album: Prends mon épaule
  type: MusicAlbum
  date published: 2025-10-01