oa
type: MusicGroup
description: OA, O.A., Oa, or oa may refer to: Arts and entertainment Oa (comics), a fictional planet in the DC Comics universe The OA, a television series OpenArena, a video game Opie and Anthony (often "O
popularity: 6
followers: 87
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x236d32330ff566427ce747f8eed44dd51c62317daf6f75a9c1d3503bffed7b14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce49cf30-bef6-4cf4-8538-f834283e5ef3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce49cf30-bef6-4cf4-8538-f834283e5ef3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce49cf30-bef6-4cf4-8538-f834283e5ef3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
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 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 0x236d32330ff566427ce747f8eed44dd51c62317daf6f75a9c1d3503bffed7b14. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce49cf30-bef6-4cf4-8538-f834283e5ef3.json and https://artists.proofprofile.net/proofs/artist/ce49cf30-bef6-4cf4-8538-f834283e5ef3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
album: 528 Hz Cosmos
  type: MusicAlbum
  date published: 2024-01-04
album: 528 Hz Aether
  type: MusicAlbum
  date published: 2023-12-13
album: Sol (528hz)
  type: MusicAlbum
  date published: 2023-11-13
album: Holding Space 432hz
  type: MusicAlbum
  date published: 2023-08-04
album: Mare
  type: MusicAlbum
  date published: 2023-07-17
album: Maui (Delta)
  type: MusicAlbum
  date published: 2023-07-07
  track: Maui (Delta)
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184000
    explicit: false
    by artist: oa
    in album: Maui (Delta)
      type: MusicAlbum
      date published: 2023-07-07
    isrc code: QZNWQ2350855
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-11T02:12:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9502d395208e83faf4a2410ff042e8c09e7cd1303411fd69c37b9f8bdba03a50
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 953520
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/953520
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWQ2350855
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-06-13T13:32:09Z
    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 0x9502d395208e83faf4a2410ff042e8c09e7cd1303411fd69c37b9f8bdba03a50. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZNWQ2350855.
      date published: 2026-06-13T13:32:09Z
    audio: Maui (Delta)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.251
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.108
      additional property: Energy
        type: PropertyValue
        value: 0.069
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.922
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.58
      additional property: Liveness
        type: PropertyValue
        value: 0.096
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.086
      additional property: Loudness (dB)
        type: PropertyValue
        value: -31.5
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Etna
  type: MusicAlbum
  date published: 2023-06-29
album: Terra
  type: MusicAlbum
  date published: 2023-05-09