Calm Symphony
type: MusicGroup
popularity: 4
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x471c16d6f5996a58a78405f7f3e17ae06b4f4740d4445c3f3934bb310d8c7d9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d142135-7436-4038-a25a-5b4a4bdc571e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4d142135-7436-4038-a25a-5b4a4bdc571e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4d142135-7436-4038-a25a-5b4a4bdc571e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x471c16d6f5996a58a78405f7f3e17ae06b4f4740d4445c3f3934bb310d8c7d9e","name":"Calm Symphony","registered_at":"2026-06-16T16:24:34Z","symbol":"NIM1108404","token_address":"0x4369d145242434149cd82578743417001874e12e","type":"artist","uuid":"4d142135-7436-4038-a25a-5b4a4bdc571e"}
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 0x471c16d6f5996a58a78405f7f3e17ae06b4f4740d4445c3f3934bb310d8c7d9e. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4d142135-7436-4038-a25a-5b4a4bdc571e.json and https://artists.proofprofile.net/proofs/artist/4d142135-7436-4038-a25a-5b4a4bdc571e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x471c16d6f5996a58a78405f7f3e17ae06b4f4740d4445c3f3934bb310d8c7d9e","name":"Calm Symphony","registered_at":"2026-06-16T16:24:34Z","symbol":"NIM1108404","token_address":"0x4369d145242434149cd82578743417001874e12e","type":"artist","uuid":"4d142135-7436-4038-a25a-5b4a4bdc571e"}
album: Sleepy Story
  type: MusicAlbum
  date published: 2024-04-12
  track: Sleepy Story
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238116
    explicit: false
    by artist: Calm Symphony
    in album: Sleepy Story
      type: MusicAlbum
      date published: 2024-04-12
    isrc code: SE7DX2401317
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T23:27:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4b39f0eab335726ad67a4a1c848bb87dc6b90578c29ed4de8a9e2d87f458da39
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE7DX2401317
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x4b39f0eab335726ad67a4a1c848bb87dc6b90578c29ed4de8a9e2d87f458da39. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/SE7DX2401317.
      date published: 2026-07-04T11:19:20Z
    audio: Sleepy Story
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.524
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.152
      additional property: Energy
        type: PropertyValue
        value: 0.002
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.987
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.951
      additional property: Liveness
        type: PropertyValue
        value: 0.108
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.04
      additional property: Loudness (dB)
        type: PropertyValue
        value: -45.252
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Serene Sublimity
  type: MusicAlbum
  date published: 2024-09-20
album: Betelgeuse's Breath
  type: MusicAlbum
  date published: 2025-01-31
album: Subconscious Ebb
  type: MusicAlbum
  date published: 2025-05-16