ブラウンノイズ若返り
type: MusicGroup
popularity: 16
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f2763c3cf83bb1ba4d977e01d8fdaae85d88532da9ad05111dbcf06a1c19573
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/3ee204e5-8ef1-45b2-a8f6-91ed98030bae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3ee204e5-8ef1-45b2-a8f6-91ed98030bae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3ee204e5-8ef1-45b2-a8f6-91ed98030bae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f2763c3cf83bb1ba4d977e01d8fdaae85d88532da9ad05111dbcf06a1c19573","name":"ブラウンノイズ若返り","registered_at":"2026-06-14T11:02:41Z","symbol":"NIM0432564","token_address":"0xc7d139fddd6bf641a1d48af8d9a885bd57817a60","type":"artist","uuid":"3ee204e5-8ef1-45b2-a8f6-91ed98030bae"}
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 0x4f2763c3cf83bb1ba4d977e01d8fdaae85d88532da9ad05111dbcf06a1c19573. 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/3ee204e5-8ef1-45b2-a8f6-91ed98030bae.json and https://artists.proofprofile.net/proofs/artist/3ee204e5-8ef1-45b2-a8f6-91ed98030bae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x4f2763c3cf83bb1ba4d977e01d8fdaae85d88532da9ad05111dbcf06a1c19573","name":"ブラウンノイズ若返り","registered_at":"2026-06-14T11:02:41Z","symbol":"NIM0432564","token_address":"0xc7d139fddd6bf641a1d48af8d9a885bd57817a60","type":"artist","uuid":"3ee204e5-8ef1-45b2-a8f6-91ed98030bae"}
album: ホワイトノイズ & 超睡眠 - 400Hz
  type: MusicAlbum
  date published: 2020-11-11
  track: ホワイトノイズ & パワー昼寝 - 集中できる
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156876
    explicit: false
    by artist: ブラウンノイズ若返り
    in album: ホワイトノイズ & 超睡眠 - 400Hz
      type: MusicAlbum
      date published: 2020-11-11
    isrc code: PL39J2047620
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:06:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5cc75a017abf5915cccba20a4a3fd30c495aa2ca99f99bafd14e7a08560b6283
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL39J2047620
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:06:00Z
    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 0x5cc75a017abf5915cccba20a4a3fd30c495aa2ca99f99bafd14e7a08560b6283. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:06:00Z), 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/PL39J2047620.
      date published: 2026-07-20T12:06:00Z
    audio: ホワイトノイズ & パワー昼寝 - 集中できる
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 57.722
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.056
      additional property: Energy
        type: PropertyValue
        value: 0.259
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.973
      additional property: Liveness
        type: PropertyValue
        value: 0.274
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.111
      additional property: Loudness (dB)
        type: PropertyValue
        value: -23.148
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ホワイトノイズ パワー - 勉強やる気
  type: MusicAlbum
  date published: 2020-11-12
album: ホワイトノイズ全Hz & 超睡眠 - お昼寝用
  type: MusicAlbum
  date published: 2020-11-13
  track: ホワイトノイズ全Hz & 超睡眠 - 集中できる
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172386
    explicit: false
    by artist: ブラウンノイズ若返り
    in album: ホワイトノイズ全Hz & 超睡眠 - お昼寝用
      type: MusicAlbum
      date published: 2020-11-13
    isrc code: PL39J2047700
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T13:04:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x293c519d76745325415e6eac32314198df429f5e9960e5c15824076ebf31b0ee
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL39J2047700
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T16:06:57Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293c519d76745325415e6eac32314198df429f5e9960e5c15824076ebf31b0ee. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:06:57Z), 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/PL39J2047700.
      date published: 2026-07-19T16:06:57Z
    audio: ホワイトノイズ全Hz & 超睡眠 - 集中できる
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 50
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0
      additional property: Energy
        type: PropertyValue
        value: 0
      additional property: Speechiness
        type: PropertyValue
        value: 0
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: ホワイトノイズ全Hz & 超睡眠 - 勉強用
  track: ホワイトノイズ全Hz & 超睡眠 - 勉強やる気
  track: ホワイトノイズ全Hz & 超睡眠 - 超睡眠
  track: ホワイトノイズ全Hz & 超睡眠 - 超昼寝用
album: ホワイトノイズ全Hz & パワー昼寝 - 勉強用
album: 非常にリラックス, 静かな夏の夜に、涼しげな音楽
album: リラックスできる騒音で平和を感じる
album: 鳥の鳴き声と騒音
album: Winter Relaxation Brown Noise

Valence (Positivity)
type: PropertyValue
value: 0

Loudness (dB)
type: PropertyValue
value: -4.615

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

ホワイトノイズ全Hz & 超睡眠 - 勉強用
type: MusicRecording
duration: PT2M50S
duration ms: 170873
explicit: false
by artist: ブラウンノイズ若返り
in album: ホワイトノイズ全Hz & 超睡眠 - お昼寝用
  type: MusicAlbum
  date published: 2020-11-13
isrc code: PL39J2047701
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-18T08:51:52+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d77c95d1b4782c0b3c4062ee7f38cbfd05350006a77f572ad2f85a8f64e62a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958526
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958526
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL39J2047701
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-18T09:09:53Z
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 0x1d77c95d1b4782c0b3c4062ee7f38cbfd05350006a77f572ad2f85a8f64e62a3. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/PL39J2047701.
  date published: 2026-07-18T09:09:53Z
audio: ホワイトノイズ全Hz & 超睡眠 - 勉強用
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0
  additional property: Energy
    type: PropertyValue
    value: 0
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.615
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ホワイトノイズ全Hz & 超睡眠 - 勉強やる気
type: MusicRecording
duration: PT2M51S
duration ms: 171347
explicit: false
by artist: ブラウンノイズ若返り
in album: ホワイトノイズ全Hz & 超睡眠 - お昼寝用
  type: MusicAlbum
  date published: 2020-11-13
isrc code: PL39J2047702
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T12:18:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fdd7b64d1c83f29e409d9c0cde9b436692680394b6092212cf25bb5aec5999d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958728
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL39J2047702
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T12:24:55Z
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 0x0fdd7b64d1c83f29e409d9c0cde9b436692680394b6092212cf25bb5aec5999d. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/PL39J2047702.
  date published: 2026-07-19T12:24:55Z
audio: ホワイトノイズ全Hz & 超睡眠 - 勉強やる気
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 73.466
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.14
  additional property: Energy
    type: PropertyValue
    value: 0.739
  additional property: Speechiness
    type: PropertyValue
    value: 0.216
  additional property: Acousticness
    type: PropertyValue
    value: 0.054
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.967
  additional property: Liveness
    type: PropertyValue
    value: 0.123
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -17.243
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

ホワイトノイズ全Hz & 超睡眠 - 超睡眠
type: MusicRecording
duration: PT3M0S
duration ms: 180937
explicit: false
by artist: ブラウンノイズ若返り
in album: ホワイトノイズ全Hz & 超睡眠 - お昼寝用
  type: MusicAlbum
  date published: 2020-11-13
isrc code: PL39J2047703
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T02:46:22+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x36c4b2d918f885d75fe2a54c921006cc0e5359d74bb3effb42e74d285c06322d
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/PL39J2047703
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c4b2d918f885d75fe2a54c921006cc0e5359d74bb3effb42e74d285c06322d. 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/PL39J2047703.
  date published: 2026-07-05T10:01:46Z
audio: ホワイトノイズ全Hz & 超睡眠 - 超睡眠
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 50
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0
  additional property: Energy
    type: PropertyValue
    value: 0
  additional property: Speechiness
    type: PropertyValue
    value: 0
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.615
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Minor

ホワイトノイズ全Hz & 超睡眠 - 超昼寝用
type: MusicRecording
duration: PT2M55S
duration ms: 175781
explicit: false
by artist: ブラウンノイズ若返り
in album: ホワイトノイズ全Hz & 超睡眠 - お昼寝用
  type: MusicAlbum
  date published: 2020-11-13
isrc code: PL39J2047705
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-16T01:57:11+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf84bd224689c06462326444796a4cd68f4913e07ec6a44825a51e5205dfe90f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958228
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958228
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL39J2047705
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-16T04:59:03Z
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
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  encoding format: application/vnd.opentimestamps.ots
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  date published: 2026-07-16T04:59:03Z
audio: ホワイトノイズ全Hz & 超睡眠 - 超昼寝用
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ホワイトノイズ全Hz & パワー昼寝 - 勉強用
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