greta langgin
type: MusicGroup
popularity: 6
followers: 358
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb9ead0441eb067f7ac4bf40e8ab5591a3ea988a1dd8547b005120a42075c5a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e16445e0-d99a-4f35-8b1a-fc4579795831.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e16445e0-d99a-4f35-8b1a-fc4579795831.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e16445e0-d99a-4f35-8b1a-fc4579795831
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbb9ead0441eb067f7ac4bf40e8ab5591a3ea988a1dd8547b005120a42075c5a5","name":"greta langgin","registered_at":"2026-06-21T06:33:39Z","symbol":"NIM1849777","token_address":"0x88b624f1a6caa69070e40aad14b09671f182f5f1","type":"artist","uuid":"e16445e0-d99a-4f35-8b1a-fc4579795831"}
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 0xbb9ead0441eb067f7ac4bf40e8ab5591a3ea988a1dd8547b005120a42075c5a5. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e16445e0-d99a-4f35-8b1a-fc4579795831.json and https://artists.proofprofile.net/proofs/artist/e16445e0-d99a-4f35-8b1a-fc4579795831.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xbb9ead0441eb067f7ac4bf40e8ab5591a3ea988a1dd8547b005120a42075c5a5","name":"greta langgin","registered_at":"2026-06-21T06:33:39Z","symbol":"NIM1849777","token_address":"0x88b624f1a6caa69070e40aad14b09671f182f5f1","type":"artist","uuid":"e16445e0-d99a-4f35-8b1a-fc4579795831"}
album: Self Growth
  type: MusicAlbum
  date published: 2023-12-31
album: Cautious
  type: MusicAlbum
  date published: 2024-01-22
album: 8:30
  type: MusicAlbum
  date published: 2024-02-26
album: Are You Listening?
  type: MusicAlbum
  date published: 2024-03-19
album: On My Mind
  type: MusicAlbum
  date published: 2024-04-01
album: Believe Me
  type: MusicAlbum
  date published: 2024-06-04
album: Now.
  type: MusicAlbum
  date published: 2024-07-01
album: At Least
  type: MusicAlbum
  date published: 2024-12-20
album: May I Teach You?
  type: MusicAlbum
  date published: 2025-01-29
album: Over and Over
  type: MusicAlbum
  date published: 2025-03-27
album: Forbidden
  type: MusicAlbum
  date published: 2025-05-03
  track: Forbidden
    type: MusicRecording
    duration: PT4M51S
    duration ms: 291962
    explicit: false
    by artist: greta langgin
    in album: Forbidden
      type: MusicAlbum
      date published: 2025-05-03
    isrc code: TCAJN2578151
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T05:34:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x327346a1b1c1437c378f3dfacd0e0274bf5403dfc413eaf3f26d683da242a066
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958834
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958834
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJN2578151
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T05:55:47Z
    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 0x327346a1b1c1437c378f3dfacd0e0274bf5403dfc413eaf3f26d683da242a066. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJN2578151 — a six-check JSON result.
      date published: 2026-07-20T05:55:47Z
    audio: Forbidden
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.982
      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: 0.444
      additional property: Energy
        type: PropertyValue
        value: 0.044
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.959
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.145
      additional property: Loudness (dB)
        type: PropertyValue
        value: -22.012
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major