Yesterday Once Again
type: MusicGroup
popularity: 13
followers: 165
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe151e1f4d0e3cd141cf523d9c92d6e321b01d8a54ca0e47d78da29e332386f53
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/784f6c51-0a9a-4e11-baff-896e9a7cff50.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/784f6c51-0a9a-4e11-baff-896e9a7cff50.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/784f6c51-0a9a-4e11-baff-896e9a7cff50
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe151e1f4d0e3cd141cf523d9c92d6e321b01d8a54ca0e47d78da29e332386f53","name":"Yesterday Once Again","registered_at":"2026-06-14T17:08:08Z","symbol":"NIM0519761","token_address":"0xa5461e67c55412ff1507c4afb882847c6a0c8a39","type":"artist","uuid":"784f6c51-0a9a-4e11-baff-896e9a7cff50"}
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 0xe151e1f4d0e3cd141cf523d9c92d6e321b01d8a54ca0e47d78da29e332386f53. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/784f6c51-0a9a-4e11-baff-896e9a7cff50.json and https://artists.proofprofile.net/proofs/artist/784f6c51-0a9a-4e11-baff-896e9a7cff50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0xe151e1f4d0e3cd141cf523d9c92d6e321b01d8a54ca0e47d78da29e332386f53","name":"Yesterday Once Again","registered_at":"2026-06-14T17:08:08Z","symbol":"NIM0519761","token_address":"0xa5461e67c55412ff1507c4afb882847c6a0c8a39","type":"artist","uuid":"784f6c51-0a9a-4e11-baff-896e9a7cff50"}
album: Summer in a Dream
  type: MusicAlbum
  date published: 2024-10-25
album: Afterglow
  type: MusicAlbum
  date published: 2024-11-22
  track: Afterglow
    type: MusicRecording
    duration: PT2M25S
    duration ms: 145250
    explicit: false
    by artist: Yesterday Once Again
    in album: Afterglow
      type: MusicAlbum
      date published: 2024-11-22
    isrc code: QZWFW2444840
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T01:15:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x87d0e868b0c16768904091c99a0c138726fad9d8ca946165ad178916b2057c69
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956430
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956430
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFW2444840
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T02:22:42Z
    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 0x87d0e868b0c16768904091c99a0c138726fad9d8ca946165ad178916b2057c69. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/QZWFW2444840.
      date published: 2026-07-03T02:22:42Z
    audio: Afterglow
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 85.077
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.557
      additional property: Energy
        type: PropertyValue
        value: 0.748
      additional property: Speechiness
        type: PropertyValue
        value: 0.074
      additional property: Acousticness
        type: PropertyValue
        value: 0.103
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.189
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.483
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Happy Old New Year
  type: MusicAlbum
  date published: 2025-01-03
album: Patois
  type: MusicAlbum
  date published: 2025-01-10
  track: Patois
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192000
    explicit: false
    by artist: Yesterday Once Again
    in album: Patois
      type: MusicAlbum
      date published: 2025-01-10
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    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
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    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x75c2899bde8b7cd29cc83d7541930f816cefed088845453e655ba30ec63f98ac
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958170
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958170
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFJ2409677
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T16:21:50Z
    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 0x75c2899bde8b7cd29cc83d7541930f816cefed088845453e655ba30ec63f98ac. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZWFJ2409677.
      date published: 2026-07-15T16:21:50Z
    audio: Patois
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.098
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.721
      additional property: Energy
        type: PropertyValue
        value: 0.512
      additional property: Speechiness
        type: PropertyValue
        value: 0.07
      additional property: Acousticness
        type: PropertyValue
        value: 0.428
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Exist For You
album: Future Nature
album: I (Friends)
album: Hazy (Cherry Juice & White Mercedes)

Liveness
type: PropertyValue
value: 0.126

Valence (Positivity)
type: PropertyValue
value: 0.776

Loudness (dB)
type: PropertyValue
value: -7.853

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Exist For You
type: MusicAlbum
date published: 2025-02-07

Future Nature
type: MusicAlbum
date published: 2025-07-05

I (Friends)
type: MusicAlbum
date published: 2025-10-10

Hazy (Cherry Juice & White Mercedes)
type: MusicAlbum
date published: 2025-10-31