EJ Serna
type: MusicGroup
genre: pinoy hip hop
popularity: 4
followers: 96
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7cea09a07daf9bc67ec713cec185db1570caebc03c5829a1d0fefa201f1a9598
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb635d15-0bdd-4c3a-9f4d-c99c6178613f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb635d15-0bdd-4c3a-9f4d-c99c6178613f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb635d15-0bdd-4c3a-9f4d-c99c6178613f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7cea09a07daf9bc67ec713cec185db1570caebc03c5829a1d0fefa201f1a9598","name":"EJ Serna","registered_at":"2026-06-21T16:53:33Z","symbol":"NIM1979846","token_address":"0x14de7982684b386b2f1a7f0effacb3bacb684a93","type":"artist","uuid":"fb635d15-0bdd-4c3a-9f4d-c99c6178613f"}
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 0x7cea09a07daf9bc67ec713cec185db1570caebc03c5829a1d0fefa201f1a9598. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb635d15-0bdd-4c3a-9f4d-c99c6178613f.json and https://artists.proofprofile.net/proofs/artist/fb635d15-0bdd-4c3a-9f4d-c99c6178613f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x7cea09a07daf9bc67ec713cec185db1570caebc03c5829a1d0fefa201f1a9598","name":"EJ Serna","registered_at":"2026-06-21T16:53:33Z","symbol":"NIM1979846","token_address":"0x14de7982684b386b2f1a7f0effacb3bacb684a93","type":"artist","uuid":"fb635d15-0bdd-4c3a-9f4d-c99c6178613f"}
album: Di Bale
  type: MusicAlbum
  date published: 2022-11-25
album: Kwarto
  type: MusicAlbum
  date published: 2023-03-10
album: Lust Hour
  type: MusicAlbum
  date published: 2024-04-26
album: Aning
  type: MusicAlbum
  date published: 2024-06-28
  track: Aning
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196363
    explicit: false
    by artist: EJ Serna
    in album: Aning
      type: MusicAlbum
      date published: 2024-06-28
    genre: pinoy hip hop
    isrc code: TCAIJ2403781
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x05db07301bbb508650dff8a2a4f223d2bdd3151f3366a540cbd064921da6b6ad
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958907
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958907
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIJ2403781
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T18:23:14Z
    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 0x05db07301bbb508650dff8a2a4f223d2bdd3151f3366a540cbd064921da6b6ad. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:23:14Z), 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/TCAIJ2403781.
      date published: 2026-07-20T18:23:14Z
    audio: Aning
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.126
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.627
      additional property: Energy
        type: PropertyValue
        value: 0.556
      additional property: Speechiness
        type: PropertyValue
        value: 0.06
      additional property: Acousticness
        type: PropertyValue
        value: 0.453
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.329
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.714
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Aning
  type: MusicAlbum
  date published: 2024-06-28
  track: Aning
    type: MusicRecording
    duration: PT3M16S
    duration ms: 196363
    explicit: false
    by artist: EJ Serna
    in album: Aning
      type: MusicAlbum
      date published: 2024-06-28
    genre: pinoy hip hop
    isrc code: TCAIJ2403781
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T01:01:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x05db07301bbb508650dff8a2a4f223d2bdd3151f3366a540cbd064921da6b6ad
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958805
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958805
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAIJ2403781
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T02:22:58Z
    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 0x05db07301bbb508650dff8a2a4f223d2bdd3151f3366a540cbd064921da6b6ad. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TCAIJ2403781.
      date published: 2026-07-20T02:22:58Z
    audio: Aning
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.814
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.631
      additional property: Energy
        type: PropertyValue
        value: 0.555
      additional property: Speechiness
        type: PropertyValue
        value: 0.058
      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: Taste of U
album: END? (TEENAGE FEVER REMIX)
album: ZEEN.

Acousticness
type: PropertyValue
value: 0.437

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.11

Valence (Positivity)
type: PropertyValue
value: 0.327

Loudness (dB)
type: PropertyValue
value: -8.714

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Taste of U
type: MusicAlbum
date published: 2024-12-20

END? (TEENAGE FEVER REMIX)
type: MusicAlbum
date published: 2025-07-04

Lust Hour
type: MusicAlbum
date published: 2025-07-16

ZEEN.
type: MusicAlbum
date published: 2025-10-17