Superdays
type: MusicGroup
popularity: 12
followers: 814
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xac582cf57166349f9dfce66c6c735b17b28131328d30e8589df3d915053ee888
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953719
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953719
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89eb0503-dfba-402d-80f5-03e3153a980e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/89eb0503-dfba-402d-80f5-03e3153a980e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/89eb0503-dfba-402d-80f5-03e3153a980e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T01:07:48Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac582cf57166349f9dfce66c6c735b17b28131328d30e8589df3d915053ee888. Chain 2 (Bitcoin): anchored in block 953719 (2026-06-15T01:07:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/89eb0503-dfba-402d-80f5-03e3153a980e.json and https://artists.proofprofile.net/proofs/artist/89eb0503-dfba-402d-80f5-03e3153a980e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T01:07:48Z
album: So Many Ways
  type: MusicAlbum
  date published: 2023-06-02
album: So Many Ways
  type: MusicAlbum
  date published: 2023-06-02
album: Over Again
  type: MusicAlbum
  date published: 2023-10-06
album: Over Again
  type: MusicAlbum
  date published: 2023-10-06
album: Promises
  type: MusicAlbum
  date published: 2024-03-25
  track: Promises
    type: MusicRecording
    duration: PT3M52S
    duration ms: 232013
    explicit: false
    by artist: Superdays
    in album: Promises
      type: MusicAlbum
      date published: 2024-03-25
    isrc code: ESA122405373
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T06:00:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb5fa1b159b28b36b9e33ae1af1356f83f46f333624b64867de71f64606c0efe3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958376
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958376
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA122405373
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T06:41:00Z
    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 0xb5fa1b159b28b36b9e33ae1af1356f83f46f333624b64867de71f64606c0efe3. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/ESA122405373.
      date published: 2026-07-17T06:41:00Z
    audio: Promises
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.011
      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: 0.509
      additional property: Energy
        type: PropertyValue
        value: 0.846
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.03
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.225
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.646
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.815
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Promises
  type: MusicAlbum
  date published: 2024-03-25
album: We Could Both Be So Happy
  type: MusicAlbum
  date published: 2024-10-25
  track: We Could Both Be So Happy
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179772
    explicit: false
    by artist: Superdays
    in album: We Could Both Be So Happy
      type: MusicAlbum
      date published: 2024-10-25
    isrc code: QZWFL2404950
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:00:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcab0f7ea22d9f29a4a2f210de2bb9fe5a00befc65b40a6e5c60bed50613c7d19
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958761
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFL2404950
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:03:08Z
    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 0xcab0f7ea22d9f29a4a2f210de2bb9fe5a00befc65b40a6e5c60bed50613c7d19. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:03:08Z), 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/QZWFL2404950.
      date published: 2026-07-19T20:03:08Z
    audio: We Could Both Be So Happy
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.994
      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: 0.586
      additional property: Energy
        type: PropertyValue
        value: 0.696
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      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
album: Perfect Moment
album: Endless Romance

Acousticness
type: PropertyValue
value: 0.086

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.174

Valence (Positivity)
type: PropertyValue
value: 0.6

Loudness (dB)
type: PropertyValue
value: -4.818

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Perfect Moment
type: MusicAlbum
date published: 2025-03-21

Endless Romance
type: MusicAlbum
date published: 2025-09-19