Erdna
type: MusicGroup
popularity: 18
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x87b81961aeea5bcc047c0b1041a12c92a2bc69bb652e31e387f0a581ed2bafad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a503ce8-d517-49ea-a5ff-24ea9c731b0d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a503ce8-d517-49ea-a5ff-24ea9c731b0d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a503ce8-d517-49ea-a5ff-24ea9c731b0d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
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 0x87b81961aeea5bcc047c0b1041a12c92a2bc69bb652e31e387f0a581ed2bafad. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a503ce8-d517-49ea-a5ff-24ea9c731b0d.json and https://artists.proofprofile.net/proofs/artist/3a503ce8-d517-49ea-a5ff-24ea9c731b0d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
album: Andre on His Own (A.O.H.O)
  type: MusicAlbum
  date published: 2020-09-29
album: Rain on
  type: MusicAlbum
  date published: 2020-10-05
album: Rooftop Jingles
  type: MusicAlbum
  date published: 2020-10-09
album: Malastatate
  type: MusicAlbum
  date published: 2020-10-10
album: Space Kitten
  type: MusicAlbum
  date published: 2020-10-11
album: Nico's Song
  type: MusicAlbum
  date published: 2020-10-14
album: A Ditty for Nick G.
  type: MusicAlbum
  date published: 2020-10-15
album: Ocean Waves
  type: MusicAlbum
  date published: 2020-10-17
album: (Not) Among Us
  type: MusicAlbum
  date published: 2020-10-20
album: Nice
  type: MusicAlbum
  date published: 2020-10-29
album: Lo-Fi Vibes
  type: MusicAlbum
  date published: 2020-10-31
album: her
  type: MusicAlbum
  date published: 2020-11-07
album: thank you
  type: MusicAlbum
  date published: 2020-11-08
album: generic youtube beat
  type: MusicAlbum
  date published: 2020-11-08
album: time to give thanks [thanksgiving]
  type: MusicAlbum
  date published: 2020-11-19
album: 2003
  type: MusicAlbum
  date published: 2020-11-24
album: Stormy Pleasures
  type: MusicAlbum
  date published: 2020-12-04
album: A Lo-Fi Christmas
  type: MusicAlbum
  date published: 2020-12-24
album: Lo-Fi Vibes 2
  type: MusicAlbum
  date published: 2021-02-14
album: Lo-Fi Vibes 3
  type: MusicAlbum
  date published: 2021-04-01
album: Lo-Fi Vibes 4
  type: MusicAlbum
  date published: 2021-05-15
album: Lo-fi Vibes 5 (4)
  type: MusicAlbum
  date published: 2022-08-20
album: CTRL + play
  type: MusicAlbum
  date published: 2025-05-28
  track: lo-fi orch
    type: MusicRecording
    duration: PT0M45S
    duration ms: 45176
    explicit: false
    by artist: Erdna
    in album: CTRL + play
      type: MusicAlbum
      date published: 2025-05-28
    isrc code: QZTAU2525457
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:43:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x03b21bd144d33003693e63b72470ad0940f8a190e961bbe947d6a3b9f11832ac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAU2525457
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x03b21bd144d33003693e63b72470ad0940f8a190e961bbe947d6a3b9f11832ac. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTAU2525457.
      date published: 2026-07-05T10:01:46Z
    audio: lo-fi orch
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 170.155
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.382
      additional property: Energy
        type: PropertyValue
        value: 0.371
      additional property: Speechiness
        type: PropertyValue
        value: 0.066
      additional property: Acousticness
        type: PropertyValue
        value: 0.111
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.883
      additional property: Liveness
        type: PropertyValue
        value: 0.511
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.04
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.303
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor