One California Day
type: MusicGroup
genre: surf rock
description: One California Day is a 2007 documentary film about surfing shot in six coastal regions in California. Directed by Mark Jeremias and Jason Baffa, the film looks at the experience of California surfing
popularity: 6
followers: 864
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x099cac3fa5aaf693e26ba9ca67802373902158ad0cb94e6f190196d95608fd00
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ccbec115-4cd8-4eae-b967-7bbaa035972f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ccbec115-4cd8-4eae-b967-7bbaa035972f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ccbec115-4cd8-4eae-b967-7bbaa035972f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x099cac3fa5aaf693e26ba9ca67802373902158ad0cb94e6f190196d95608fd00","name":"One California Day","registered_at":"2026-06-20T23:25:43Z","symbol":"NIM1747626","token_address":"0xe4af134ae4599f268ba5ff56ab3ed7d352b1eca1","type":"artist","uuid":"ccbec115-4cd8-4eae-b967-7bbaa035972f"}
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 0x099cac3fa5aaf693e26ba9ca67802373902158ad0cb94e6f190196d95608fd00. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccbec115-4cd8-4eae-b967-7bbaa035972f.json and https://artists.proofprofile.net/proofs/artist/ccbec115-4cd8-4eae-b967-7bbaa035972f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0x099cac3fa5aaf693e26ba9ca67802373902158ad0cb94e6f190196d95608fd00","name":"One California Day","registered_at":"2026-06-20T23:25:43Z","symbol":"NIM1747626","token_address":"0xe4af134ae4599f268ba5ff56ab3ed7d352b1eca1","type":"artist","uuid":"ccbec115-4cd8-4eae-b967-7bbaa035972f"}
album: One California Day Soundtrack
  type: MusicAlbum
  date published: 2008-05-01
  track: California Opener
    type: MusicRecording
    duration: PT1M57S
    duration ms: 117252
    explicit: false
    by artist: One California Day
    in album: One California Day Soundtrack
      type: MusicAlbum
      date published: 2008-05-01
    genre: surf rock
    isrc code: USA2P0864273
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T10:38:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdbf58447f61b22d764774c0a8520d9c24b0b48bd47fda52b679a94aadb2c6a59
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958721
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958721
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P0864273
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T11:02:33Z
    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 0xdbf58447f61b22d764774c0a8520d9c24b0b48bd47fda52b679a94aadb2c6a59. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/USA2P0864273.
      date published: 2026-07-19T11:02:33Z
    audio: California Opener
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.012
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.429
      additional property: Energy
        type: PropertyValue
        value: 0.421
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.828
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.974
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.19
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.511
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Take 3
    type: MusicRecording
    duration: PT2M40S
    duration ms: 160256
    explicit: false
    by artist: One California Day
    in album: One California Day Soundtrack
      type: MusicAlbum
      date published: 2008-05-01
    genre: surf rock
    isrc code: USA2P0864278
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T09:59:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5de0673d1b1c6dd45191322042bd0d1987c96476cd6e17bab73a91e2fe6cc700
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958716
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958716
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USA2P0864278
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T10:15:55Z
    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 0x5de0673d1b1c6dd45191322042bd0d1987c96476cd6e17bab73a91e2fe6cc700. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USA2P0864278.
      date published: 2026-07-19T10:15:55Z
    audio: Take 3
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.865
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.824
      additional property: Energy
        type: PropertyValue
        value: 0.091
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.703
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.858
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.23

Loudness (dB)
type: PropertyValue
value: -23.169

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major