Yacob
type: MusicGroup
description: Yacob, Yakob or Yaqob is a masculine given name associated with Jacob, a surname and a patronymic. Bearers of the name include: Given name Yaqob (1590–1607), Emperor of Ethiopia Yaqob I, legendary
popularity: 6
followers: 564
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x74fd696822cd9db0b4d16cdf7de5848f7a2aa6cf6be7c6b53d41cc5b7f1de0ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65827009-7c5c-41fe-ae95-8f2390df6563.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/65827009-7c5c-41fe-ae95-8f2390df6563.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/65827009-7c5c-41fe-ae95-8f2390df6563
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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 0x74fd696822cd9db0b4d16cdf7de5848f7a2aa6cf6be7c6b53d41cc5b7f1de0ca. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65827009-7c5c-41fe-ae95-8f2390df6563.json and https://artists.proofprofile.net/proofs/artist/65827009-7c5c-41fe-ae95-8f2390df6563.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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  type: MusicAlbum
  date published: 2025-01-01
album: Brat
  type: MusicAlbum
  date published: 2025-01-01
  track: Brat
    type: MusicRecording
    duration: PT2M10S
    duration ms: 130093
    explicit: true
    by artist: Yacob
    in album: Brat
      type: MusicAlbum
      date published: 2025-01-01
    isrc code: QT3EX2489426
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T00:08:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe5e790a5f1a260e5689f8cfa0a1bedf97f27caba79d4b5acd45acc7a82e7c12b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958943
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958943
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3EX2489426
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T00:27:37Z
    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 0xe5e790a5f1a260e5689f8cfa0a1bedf97f27caba79d4b5acd45acc7a82e7c12b. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QT3EX2489426.
      date published: 2026-07-21T00:27:37Z
    audio: Brat
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 106.969
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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: BEEP BEEP
album: Nocna Zmiana
album: Metoda
album: Sen
album: Nie Sięgnę Dna

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.806

Energy
type: PropertyValue
value: 0.748

Speechiness
type: PropertyValue
value: 0.119

Acousticness
type: PropertyValue
value: 0.17

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.242

Valence (Positivity)
type: PropertyValue
value: 0.403

Loudness (dB)
type: PropertyValue
value: -6.615

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

Brat
type: MusicAlbum
date published: 2025-01-01

BEEP BEEP
type: MusicAlbum
date published: 2025-02-01

Nocna Zmiana
type: MusicAlbum
date published: 2025-03-27

Nocna Zmiana
type: MusicAlbum
date published: 2025-03-27

Metoda
type: MusicAlbum
date published: 2025-05-29

Sen
type: MusicAlbum
date published: 2025-06-15

Nie Sięgnę Dna
type: MusicAlbum
date published: 2025-10-03