CalVin
type: MusicGroup
description: Calvin may refer to: Names Calvin (given name) Particularly Calvin Coolidge, 30th President of the United States Calvin (surname) Particularly John Calvin, theologian Places In the United State
popularity: 22
followers: 1094
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb56c5a0bf6f4ff977bd9ffe379e694450761da323953ab2b8a809967b490a11
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baa36940-c4a6-4487-8a75-3426c6fbbfaa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/baa36940-c4a6-4487-8a75-3426c6fbbfaa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/baa36940-c4a6-4487-8a75-3426c6fbbfaa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0xbb56c5a0bf6f4ff977bd9ffe379e694450761da323953ab2b8a809967b490a11. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/baa36940-c4a6-4487-8a75-3426c6fbbfaa.json and https://artists.proofprofile.net/proofs/artist/baa36940-c4a6-4487-8a75-3426c6fbbfaa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Hasta Luego
  type: MusicAlbum
  date published: 2020-02-05
album: Hasta Luego
  type: MusicAlbum
  date published: 2020-07-01
album: Talk My Shit Starr
  type: MusicAlbum
  date published: 2020-08-07
album: Hasta Luego (feat. Lil Durk)
  type: MusicAlbum
  date published: 2020-11-11
album: Big Things
  type: MusicAlbum
  date published: 2020-12-04
album: Talk My Shit Starr (Deluxe)
  type: MusicAlbum
  date published: 2020-12-31
  track: Hasta Luego [Lil Durk Remix]
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172075
    explicit: true
    by artist: CalVin
    in album: Talk My Shit Starr (Deluxe)
      type: MusicAlbum
      date published: 2020-12-31
    isrc code: QZ5FA2050650
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T10:56:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7b07002390d9429c2717eea79d91629ce3f5429d3df29ea32f63de12b4fb3034
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958722
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958722
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FA2050650
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T11:03:50Z
    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 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 0x7b07002390d9429c2717eea79d91629ce3f5429d3df29ea32f63de12b4fb3034. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZ5FA2050650.
      date published: 2026-07-19T11:03:50Z
    audio: Hasta Luego [Lil Durk Remix]
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.946
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.943
      additional property: Energy
        type: PropertyValue
        value: 0.513
      additional property: Speechiness
        type: PropertyValue
        value: 0.134
      additional property: Acousticness
        type: PropertyValue
        value: 0.428
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.261
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.717
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.677
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Sunrise
  type: MusicAlbum
  date published: 2021-04-01
album: Acknowledge My Presence
  type: MusicAlbum
  date published: 2021-06-17
album: Rage
  type: MusicAlbum
  date published: 2021-07-29
album: Crunch Time
  type: MusicAlbum
  date published: 2021-12-22
album: Fourth Quarter
  type: MusicAlbum
  date published: 2021-12-30
album: XOXO
  type: MusicAlbum
  date published: 2022-02-11
album: take a look
  type: MusicAlbum
  date published: 2022-04-09
album: Freestyle
  type: MusicAlbum
  date published: 2022-06-22
album: Going Up
  type: MusicAlbum
  date published: 2022-08-30
album: Star's Eye View
  type: MusicAlbum
  date published: 2022-11-08
album: SHADOWS
  type: MusicAlbum
  date published: 2023-05-19
album: Going up
  type: MusicAlbum
  date published: 2023-09-15
album: IN THE GAME
  type: MusicAlbum
  date published: 2024-01-12
album: take It to the hood
  type: MusicAlbum
  date published: 2024-02-23
album: Where Ya Heart At ?
  type: MusicAlbum
  date published: 2024-07-31
album: Land Of The Free
  type: MusicAlbum
  date published: 2024-11-22
album: call it what you will
  type: MusicAlbum
  date published: 2025-04-04