Placid
type: MusicGroup
genre: hardcore
genre: hardcore punk
description: Placid is a masculine given name, and may refer to: John Placid Adelham (17th century), English Protestant minister Saint Placid (6th century), Italian Christian monk Placid J. Podipara (20th cent
popularity: 6
followers: 511
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a69189095b13fc72477947e665e28ebf8784c023817f0d38d19e9e2268b5637
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/92c99a6f-a950-4726-b5ba-3ebbb1b3760d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/92c99a6f-a950-4726-b5ba-3ebbb1b3760d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/92c99a6f-a950-4726-b5ba-3ebbb1b3760d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
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 0x3a69189095b13fc72477947e665e28ebf8784c023817f0d38d19e9e2268b5637. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92c99a6f-a950-4726-b5ba-3ebbb1b3760d.json and https://artists.proofprofile.net/proofs/artist/92c99a6f-a950-4726-b5ba-3ebbb1b3760d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
album: Demo 2022
  type: MusicAlbum
  date published: 2022-04-29
album: Superstition
  type: MusicAlbum
  date published: 2023-01-27
album: Une femme sous influence
  type: MusicAlbum
  date published: 2023-10-26
album: Aller jamais retour
  type: MusicAlbum
  date published: 2024-03-07
album: Promo Tape
  type: MusicAlbum
  date published: 2025-03-21
  track: L‘écho dans le vide
    type: MusicRecording
    duration: PT1M35S
    duration ms: 95859
    explicit: false
    by artist: Placid
    in album: Promo Tape
      type: MusicAlbum
      date published: 2025-03-21
    genre: hardcore
    genre: hardcore punk
    isrc code: QZK6N2525339
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T12:28:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x74e8f5f1faa7ff6f1e3c6747a78f7c377ad2d1a8e2d86f172524ea6e67365724
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959128
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959128
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2525339
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T12:33:25Z
    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 0x74e8f5f1faa7ff6f1e3c6747a78f7c377ad2d1a8e2d86f172524ea6e67365724. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZK6N2525339.
      date published: 2026-07-22T12:33:25Z
    audio: L‘écho dans le vide
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 101.422
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.272
      additional property: Energy
        type: PropertyValue
        value: 0.853
      additional property: Speechiness
        type: PropertyValue
        value: 0.055
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.205
      additional property: Liveness
        type: PropertyValue
        value: 0.317
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.337
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.482
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Squatt
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159273
    explicit: false
    by artist: Placid
    in album: Promo Tape
      type: MusicAlbum
      date published: 2025-03-21
    genre: hardcore
    genre: hardcore punk
    isrc code: QZK6N2525341
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:03:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe273336572d1b6be48e041f6aa87e8465d0087c79fcf4d00e85eb31f324a5520
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6N2525341
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0xe273336572d1b6be48e041f6aa87e8465d0087c79fcf4d00e85eb31f324a5520. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZK6N2525341.
      date published: 2026-07-06T01:25:57Z
    audio: Squatt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.611
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.327
      additional property: Energy
        type: PropertyValue
        value: 0.84
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Speechiness
type: PropertyValue
value: 0.057

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.237

Liveness
type: PropertyValue
value: 0.094

Valence (Positivity)
type: PropertyValue
value: 0.304

Loudness (dB)
type: PropertyValue
value: -8.119

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Major