Tiempos Duros
type: MusicGroup
genre: hardcore
genre: hardcore punk
popularity: 5
followers: 1469
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc504a01915048fedd4406a2a318d413baa29d24d0470c37a6017f698bf1f58a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954028
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954028
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a26d5c9-5529-497e-98e9-372d8f28aeeb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a26d5c9-5529-497e-98e9-372d8f28aeeb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a26d5c9-5529-497e-98e9-372d8f28aeeb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:08:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc504a01915048fedd4406a2a318d413baa29d24d0470c37a6017f698bf1f58a","name":"Tiempos Duros","registered_at":"2026-06-16T09:48:27Z","symbol":"NIM1013898","token_address":"0x978e63bac30ab951d87262fee41b52b23007481d","type":"artist","uuid":"3a26d5c9-5529-497e-98e9-372d8f28aeeb"}
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 0xcc504a01915048fedd4406a2a318d413baa29d24d0470c37a6017f698bf1f58a. Chain 2 (Bitcoin): anchored in block 954028 (2026-06-17T01:08:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a26d5c9-5529-497e-98e9-372d8f28aeeb.json and https://artists.proofprofile.net/proofs/artist/3a26d5c9-5529-497e-98e9-372d8f28aeeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:08:06Z
  text: {"copyright_id":"0xcc504a01915048fedd4406a2a318d413baa29d24d0470c37a6017f698bf1f58a","name":"Tiempos Duros","registered_at":"2026-06-16T09:48:27Z","symbol":"NIM1013898","token_address":"0x978e63bac30ab951d87262fee41b52b23007481d","type":"artist","uuid":"3a26d5c9-5529-497e-98e9-372d8f28aeeb"}
album: Don't Need It
  type: MusicAlbum
  date published: 1982
album: We Bite
  type: MusicAlbum
  date published: 1983
album: Tiempos Duros
  type: MusicAlbum
  date published: 2010-01-01
album: El Fin De Los Tiempos
  type: MusicAlbum
  date published: 2019-03-18
album: El Fin De Los Tiempos
  type: MusicAlbum
  date published: 2019-03-30
album: Vivos o Muertos
  type: MusicAlbum
  date published: 2021-05-09