Sundrowned
type: MusicGroup
genre: post-rock
genre: sludge metal
popularity: 2
followers: 957
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a08090d19753920510cfebf04b24f06314e2e11ed2b7b73d8045645c8e5f43e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/178999c2-8db0-4acc-94a0-f1e6ee09b673.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/178999c2-8db0-4acc-94a0-f1e6ee09b673.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/178999c2-8db0-4acc-94a0-f1e6ee09b673
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
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 0x0a08090d19753920510cfebf04b24f06314e2e11ed2b7b73d8045645c8e5f43e. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/178999c2-8db0-4acc-94a0-f1e6ee09b673.json and https://artists.proofprofile.net/proofs/artist/178999c2-8db0-4acc-94a0-f1e6ee09b673.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: La Tristesse Durera Toujours
  type: MusicAlbum
  date published: 2020-11-18
album: La Tristesse Durera Toujours
  type: MusicAlbum
  date published: 2020-11-18
album: Ruins
  type: MusicAlbum
  date published: 2021-02-10
album: Ruins
  type: MusicAlbum
  date published: 2021-02-10
album: Ethereal
  type: MusicAlbum
  date published: 2021-05-21
album: Ethereal
  type: MusicAlbum
  date published: 2021-05-21
album: Become Ethereal
  type: MusicAlbum
  date published: 2021-06-18
album: Become Ethereal
  type: MusicAlbum
  date published: 2021-06-18
album: Levitating
  type: MusicAlbum
  date published: 2021-09-24
album: Levitating
  type: MusicAlbum
  date published: 2021-09-24
album: Become Ethereal (Instrumental)
  type: MusicAlbum
  date published: 2021-11-26
album: Glacious
  type: MusicAlbum
  date published: 2022-09-16
album: The Seed
  type: MusicAlbum
  date published: 2025-06-27
album: Wisteria
  type: MusicAlbum
  date published: 2025-08-01
  track: Wisteria
    type: MusicRecording
    duration: PT4M32S
    duration ms: 272077
    explicit: false
    by artist: Sundrowned
    in album: Wisteria
      type: MusicAlbum
      date published: 2025-08-01
    genre: post-rock
    genre: sludge metal
    isrc code: NOFYD2308541
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:10:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1b32d35a283c47aca3b36abbc053a7019adea60ee3d143c1c61b247b355f7b04
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFYD2308541
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0x1b32d35a283c47aca3b36abbc053a7019adea60ee3d143c1c61b247b355f7b04. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NOFYD2308541.
      date published: 2026-07-05T04:47:21Z
    audio: Wisteria
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.938
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.352
      additional property: Energy
        type: PropertyValue
        value: 0.906
      additional property: Speechiness
        type: PropertyValue
        value: 0.07
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.904
      additional property: Liveness
        type: PropertyValue
        value: 0.41
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.278
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.588
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ilex
  type: MusicAlbum
  date published: 2025-08-29
album: Higanbana
  type: MusicAlbum
  date published: 2025-09-26