Opia
type: MusicGroup
genre: doom metal
genre: gothic metal
popularity: 5
followers: 258
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc165e6cebf81660240559bf884a04fc07ba64b9c45d4fcac6711a064b7d083fc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4092c7ad-9752-4648-867a-ad75eec5cd3e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4092c7ad-9752-4648-867a-ad75eec5cd3e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4092c7ad-9752-4648-867a-ad75eec5cd3e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
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 0xc165e6cebf81660240559bf884a04fc07ba64b9c45d4fcac6711a064b7d083fc. 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/4092c7ad-9752-4648-867a-ad75eec5cd3e.json and https://artists.proofprofile.net/proofs/artist/4092c7ad-9752-4648-867a-ad75eec5cd3e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
album: On Death's Door Part I
  type: MusicAlbum
  date published: 2025-01-24
  track: On Death's Door Part I
    type: MusicRecording
    duration: PT5M26S
    duration ms: 326440
    explicit: false
    by artist: Opia
    in album: On Death's Door Part I
      type: MusicAlbum
      date published: 2025-01-24
    genre: doom metal
    genre: gothic metal
    isrc code: NLWJ22500133
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:45:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x63d05d643a751feb1f6c2fb4fe6735156fcf4fc48932d545dc4d06a7f1cc7597
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLWJ22500133
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x63d05d643a751feb1f6c2fb4fe6735156fcf4fc48932d545dc4d06a7f1cc7597. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/NLWJ22500133.
      date published: 2026-07-06T01:26:17Z
    audio: On Death's Door Part I
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.991
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.486
      additional property: Energy
        type: PropertyValue
        value: 0.919
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.756
      additional property: Liveness
        type: PropertyValue
        value: 0.268
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.151
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.892
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Fade
  type: MusicAlbum
  date published: 2025-02-26
  track: The Fade
    type: MusicRecording
    duration: PT5M19S
    duration ms: 319839
    explicit: false
    by artist: Opia
    in album: The Fade
      type: MusicAlbum
      date published: 2025-02-26
    genre: doom metal
    genre: gothic metal
    isrc code: NLWJ22500135
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T17:41:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x63ea5197377db767d3d2eea3f1b5683d1d543771eddc434bfcffe7cfc775bbbe
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958918
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958918
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLWJ22500135
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T17:58:04Z
    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 0x63ea5197377db767d3d2eea3f1b5683d1d543771eddc434bfcffe7cfc775bbbe. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/NLWJ22500135.
      date published: 2026-07-20T17:58:04Z
    audio: The Fade
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 109.996
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.504
      additional property: Energy
        type: PropertyValue
        value: 0.804
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.151
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.905
      additional property: Liveness
        type: PropertyValue
        value: 0.099
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Man Proposes, God Disposes
album: I Welcome Thee, Eternal Sleep

Valence (Positivity)
type: PropertyValue
value: 0.143

Loudness (dB)
type: PropertyValue
value: -9.81

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Man Proposes, God Disposes
type: MusicAlbum
date published: 2025-03-28

I Welcome Thee, Eternal Sleep
type: MusicAlbum
date published: 2025-04-25