Signature
type: MusicGroup
description: thumb|300px| John Hancock's signature is the most prominent on the United States Declaration of Independence and the Articles of Confederation. The name "John Hancock" or just "Hancock" has become a s
popularity: 14
followers: 130
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953772
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/c8948628-7af7-4cda-aa7e-26e3a033de91.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8948628-7af7-4cda-aa7e-26e3a033de91.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c8948628-7af7-4cda-aa7e-26e3a033de91
additional property: OTSTimestamp
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  value: 2026-06-15T10:33:29Z
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 0xa0c700846bc0f1e71819d8d181dfb31ee6a69791b3e67a0e0a56c3e45447c70d. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8948628-7af7-4cda-aa7e-26e3a033de91.json and https://artists.proofprofile.net/proofs/artist/c8948628-7af7-4cda-aa7e-26e3a033de91.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T10:33:29Z
album: Solo-The PreGame
  type: MusicAlbum
  date published: 2018-01-22
album: 100k
  type: MusicAlbum
  date published: 2018-01-25
album: Solo-The Present
  type: MusicAlbum
  date published: 2018-12-19
  track: Intro
    type: MusicRecording
    duration: PT0M36S
    duration ms: 36075
    explicit: true
    by artist: Signature
    in album: Solo-The Present
      type: MusicAlbum
      date published: 2018-12-19
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2051015
    additional property: OTSTimestamp
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      value: 2026-07-17T02:35:39Z
    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 0xb11e8452552723553c8d07d01189857a3e7ea6319359953710e7485fc33fee2f. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T02:35:39Z), 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/QZNWW2051015.
      date published: 2026-07-17T02:35:39Z
    audio: Intro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 84.677
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.75
      additional property: Energy
        type: PropertyValue
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
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      additional property: Instrumentalness
        type: PropertyValue
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      additional property: Liveness
        type: PropertyValue
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
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album: Solo-Back & Forth
  type: MusicAlbum
  date published: 2019-12-19
album: Wonderful life
  type: MusicAlbum
  date published: 2020-02-28
album: Progress
  type: MusicAlbum
  date published: 2020-07-17
album: Life In The Shadows
  type: MusicAlbum
  date published: 2021-03-01
album: 1Cup 1L
  type: MusicAlbum
  date published: 2021-08-25
album: 5 Minute of Fire
  type: MusicAlbum
  date published: 2021-10-26
album: Out Smoking
  type: MusicAlbum
  date published: 2022-02-07
album: Manifesting
  type: MusicAlbum
  date published: 2022-07-28
album: Not Me
  type: MusicAlbum
  date published: 2022-08-16
album: Going Up
  type: MusicAlbum
  date published: 2023-02-14
album: 100K
  type: MusicAlbum
  date published: 2023-05-09
album: Thankful
  type: MusicAlbum
  date published: 2023-07-18
album: John Hancock Sneek Peek
  type: MusicAlbum
  date published: 2023-09-22
album: Signs of Superoirity
  type: MusicAlbum
  date published: 2023-10-03
album: 2Cups 2Ls (Direct Version)
  type: MusicAlbum
  date published: 2023-10-17
album: 2Cups 2Ls
  type: MusicAlbum
  date published: 2023-10-17
album: Bow Down
  type: MusicAlbum
  date published: 2023-11-12
album: John Hancock The Album
  type: MusicAlbum
  date published: 2023-11-26
album: Feel Something
  type: MusicAlbum
  date published: 2023-12-18
album: I Smoke Bud
  type: MusicAlbum
  date published: 2024-05-07
album: John Hancock The Album (Complete Version)
  type: MusicAlbum
  date published: 2024-06-18
album: Thankful (MeMix)
  type: MusicAlbum
  date published: 2024-07-11
album: SHIT HAPPENED
  type: MusicAlbum
  date published: 2024-08-25
album: Win Time, Pt. 1
  type: MusicAlbum
  date published: 2025-02-26
album: Angels (Shortned)

Angels (Shortned)
type: MusicAlbum
date published: 2025-03-01