Vieja Guardia
type: MusicGroup
genre: mexican hip hop
popularity: 8
followers: 3687
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0ceb1ac753fd9ce582db317f03fbe50c19bb7ef4d1391f140e5c70ef759de832
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39e2fd82-5637-4364-b7df-4ba8e0742373.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/39e2fd82-5637-4364-b7df-4ba8e0742373.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/39e2fd82-5637-4364-b7df-4ba8e0742373
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0ceb1ac753fd9ce582db317f03fbe50c19bb7ef4d1391f140e5c70ef759de832","name":"Vieja Guardia","registered_at":"2026-06-16T10:05:23Z","symbol":"NIM1017945","token_address":"0x43eecd4ac3febd53aed2f4cf1892e1a8dc2b4cb5","type":"artist","uuid":"39e2fd82-5637-4364-b7df-4ba8e0742373"}
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 0x0ceb1ac753fd9ce582db317f03fbe50c19bb7ef4d1391f140e5c70ef759de832. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/39e2fd82-5637-4364-b7df-4ba8e0742373.json and https://artists.proofprofile.net/proofs/artist/39e2fd82-5637-4364-b7df-4ba8e0742373.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0x0ceb1ac753fd9ce582db317f03fbe50c19bb7ef4d1391f140e5c70ef759de832","name":"Vieja Guardia","registered_at":"2026-06-16T10:05:23Z","symbol":"NIM1017945","token_address":"0x43eecd4ac3febd53aed2f4cf1892e1a8dc2b4cb5","type":"artist","uuid":"39e2fd82-5637-4364-b7df-4ba8e0742373"}
album: De Vuelta A Los 90´s (Feat. Muelas, Big Metra, Mc Luka, Morfo 3030, Aztek 732, Gogo Rass, El Sepulturero)
  type: MusicAlbum
  date published: 2019-12-20
  track: De Vuelta A Los 90´s (Feat. Muelas, Big Metra, Mc Luka, Morfo 3030, Aztek 732, Gogo Rass, El Sepulturero)
album: Corazon de Leon (feat. Muelas De Gallo, Big Metra, Gogo Ras, Mc Luka, DJ Aztek 732, Jerry Funk & Morfo 3030)
  type: MusicAlbum
  date published: 2020-05-20

De Vuelta A Los 90´s (Feat. Muelas, Big Metra, Mc Luka, Morfo 3030, Aztek 732, Gogo Rass, El Sepulturero)
type: MusicRecording
duration: PT3M27S
duration ms: 207378
explicit: true
by artist: Vieja Guardia
in album: De Vuelta A Los 90´s (Feat. Muelas, Big Metra, Mc Luka, Morfo 3030, Aztek 732, Gogo Rass, El Sepulturero)
  type: MusicAlbum
  date published: 2019-12-20
genre: mexican hip hop
isrc code: QZDQH1809271
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-11T16:33:46+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd47f6571a9168bcaf47808ed110e448b6ecb346e53b85a211d17e502804b5198
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDQH1809271
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47f6571a9168bcaf47808ed110e448b6ecb346e53b85a211d17e502804b5198. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZDQH1809271.
  date published: 2026-06-13T13:32:09Z
audio: De Vuelta A Los 90´s (Feat. Muelas, Big Metra, Mc Luka, Morfo 3030, Aztek 732, Gogo Rass, El Sepulturero)
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 120.012
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.85
  additional property: Energy
    type: PropertyValue
    value: 0.907
  additional property: Speechiness
    type: PropertyValue
    value: 0.303
  additional property: Acousticness
    type: PropertyValue
    value: 0.182
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.132
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.608
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.772
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major