Los Pericos is an Argentine band formed in 1987. The band has enjoyed international success, especially throughout South America. In 2006, the band received some notable exposure for North American a
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29bdb1cf40f4f3095c38c45c64f63b4d6b65e5ac6f58de8ad30fb7923ae9164f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/57e6f77b-a733-4c57-bea9-5707c8e7b12b.json and https://artists.proofprofile.net/proofs/artist/57e6f77b-a733-4c57-bea9-5707c8e7b12b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0a6c88988f03c73af1431d752daa62fb3d0a1060e4a5603cb59929d7bcf55e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ARF049400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0a6c88988f03c73af1431d752daa62fb3d0a1060e4a5603cb59929d7bcf55e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARF049400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f0cd881a48adf820f1c8976729910ffbcf10cb53de890b83b049b1d0a45383. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/ARF470900255.
Hemp! A Reggae Tribute to The Beatles, Vol. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03376d7f822a7b05b3d1a5a21cd74dc995a8648ee3a0b2e94d49adefc719ab05. 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/AR1K21300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e97f6fc74764a30eb37081e0516ba36c3e065f6f7d8b85259369a7a81eb41a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ARF049400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e97f6fc74764a30eb37081e0516ba36c3e065f6f7d8b85259369a7a81eb41a. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ARF049400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41e97f6fc74764a30eb37081e0516ba36c3e065f6f7d8b85259369a7a81eb41a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ARF049400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed49b13a81683cad2023f38319eff48cc07cce3ab3a1bb176fe30a4dc13d8d17. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ARF049800185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0a6c88988f03c73af1431d752daa62fb3d0a1060e4a5603cb59929d7bcf55e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ARF049400077.