El Tando
type: MusicGroup
genre: finnish hip hop
popularity: 11
followers: 245
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a449f6f8e2f7331fc7659f6c6c5b57fb7efbc8532b736b6020fa5a86b2006ad
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8931810-8fef-4a1a-b607-e6ab20e83784.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8931810-8fef-4a1a-b607-e6ab20e83784.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c8931810-8fef-4a1a-b607-e6ab20e83784
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3a449f6f8e2f7331fc7659f6c6c5b57fb7efbc8532b736b6020fa5a86b2006ad","name":"El Tando","registered_at":"2026-06-15T01:30:58Z","symbol":"NIM0639732","token_address":"0xbca7e0aa69349afa3cf4329279ec1ee44e07b224","type":"artist","uuid":"c8931810-8fef-4a1a-b607-e6ab20e83784"}
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 0x3a449f6f8e2f7331fc7659f6c6c5b57fb7efbc8532b736b6020fa5a86b2006ad. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8931810-8fef-4a1a-b607-e6ab20e83784.json and https://artists.proofprofile.net/proofs/artist/c8931810-8fef-4a1a-b607-e6ab20e83784.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x3a449f6f8e2f7331fc7659f6c6c5b57fb7efbc8532b736b6020fa5a86b2006ad","name":"El Tando","registered_at":"2026-06-15T01:30:58Z","symbol":"NIM0639732","token_address":"0xbca7e0aa69349afa3cf4329279ec1ee44e07b224","type":"artist","uuid":"c8931810-8fef-4a1a-b607-e6ab20e83784"}
album: Tuuliajolla
  type: MusicAlbum
  date published: 2019-05-03
album: Backbone
  type: MusicAlbum
  date published: 2019-11-27
album: Mun Wavy
  type: MusicAlbum
  date published: 2020-02-21
album: Unia meistä
  type: MusicAlbum
  date published: 2020-08-14
album: Damagee
  type: MusicAlbum
  date published: 2020-12-28
album: Steppaan
  type: MusicAlbum
  date published: 2021-03-07
album: Tuuliajolla
  type: MusicAlbum
  date published: 2021-09-15
album: Ei Kiinosta
  type: MusicAlbum
  date published: 2022-03-21
album: Broken Homes
  type: MusicAlbum
  date published: 2024-09-06
album: Veljeni Vartija
  type: MusicAlbum
  date published: 2024-10-04
album: Freddie King
  type: MusicAlbum
  date published: 2024-12-27
album: Päärooli
  type: MusicAlbum
  date published: 2025-02-28
  track: Päärooli
    type: MusicRecording
    duration: PT2M38S
    duration ms: 158400
    explicit: false
    by artist: El Tando
    in album: Päärooli
      type: MusicAlbum
      date published: 2025-02-28
    genre: finnish hip hop
    isrc code: AUMEV2518650
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:03:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x554812df1fa102d181fa71d3b1dea2c88e3684fff6388a4ac042e95c3906bb08
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2518650
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x554812df1fa102d181fa71d3b1dea2c88e3684fff6388a4ac042e95c3906bb08. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AUMEV2518650.
      date published: 2026-07-04T10:04:33Z
    audio: Päärooli
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.99
      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: 0.825
      additional property: Energy
        type: PropertyValue
        value: 0.455
      additional property: Speechiness
        type: PropertyValue
        value: 0.1
      additional property: Acousticness
        type: PropertyValue
        value: 0.05
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.348
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.276
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: sinisiä nuotteja
  type: MusicAlbum
  date published: 2025-04-18
album: Daniel Sedin
  type: MusicAlbum
  date published: 2025-07-18
track: Bars On Bars I S2:E14
  type: MusicRecording
  duration: PT2M29S
  duration ms: 149387
  explicit: false
  by artist: Bars On Bars
  by artist: El Tando
  in album: Bars On Bars I S2:E14
    type: MusicAlbum
    date published: 2023-11-17
  genre: finnish-drill
  isrc code: QZTBE2308924
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-23T18:35:01+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9688083047491a7ef8789f206b94a7123af426618ff27ccf7eefdfd039dfac36
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBE2308924
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Bars On Bars I S2:E14

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9688083047491a7ef8789f206b94a7123af426618ff27ccf7eefdfd039dfac36. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZTBE2308924.
date published: 2026-07-02T03:55:08Z

Bars On Bars I S2:E14
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 116.639
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 5
additional property: Danceability
  type: PropertyValue
  value: 0.852
additional property: Energy
  type: PropertyValue
  value: 0.386
additional property: Speechiness
  type: PropertyValue
  value: 0.459
additional property: Acousticness
  type: PropertyValue
  value: 0.044
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.07
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.412
additional property: Loudness (dB)
  type: PropertyValue
  value: -18.218
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor