Los Saicos is a rock band formed in 1964 in Lima, Peru. Their use of fast tempos, screamed vocals and aggressive riffing has led publications to retrospectively credit them as pioneers of punk rock mu
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffa5bbe891094daa9d96993715908268e71e3f61f88c0fa96f2bdbeeee505bb. 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/a37c9980-de79-4607-b1dd-9e55f0dfbd4a.json and https://artists.proofprofile.net/proofs/artist/a37c9980-de79-4607-b1dd-9e55f0dfbd4a.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07e4b29eefebcf1b44d3ed3f7dc2e889bd30cb3bbb60fa03fd7fe416954c4d3. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USA371030815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c97889cc4ec6d9146b695370852da5b4dde44f2998d649586662dada92ba7b1. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USA371030816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84465d5fec2e1ff95f556eec5d73d8bba811153f4c46da63b187edb27767d73. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/USA371030817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d298fd7fa8b1a826781e596c0b93f7f211eaead0a37a085a654e2a4fce99c87. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USA371030819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea468f0a0846aaeb7670e13db5e5ca53f9c74e6f45ef05c49873d4785d71b1b. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USA371030822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987cf10299cc64eb64b5989e764a8a3863eab26c9fcb28e8b91f66653377c505. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USA371030814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07e4b29eefebcf1b44d3ed3f7dc2e889bd30cb3bbb60fa03fd7fe416954c4d3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA371030815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c97889cc4ec6d9146b695370852da5b4dde44f2998d649586662dada92ba7b1. Chain 2 (Bitcoin): anchored in block 959363 (2026-07-24T04:14:27Z), 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/USA371030816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84465d5fec2e1ff95f556eec5d73d8bba811153f4c46da63b187edb27767d73. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USA371030817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d298fd7fa8b1a826781e596c0b93f7f211eaead0a37a085a654e2a4fce99c87. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USA371030819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dda0abd4150554379d8318f91b7da53f89333f8d4e4084d41d5d0cc29092ce9. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/USA371030820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f09b4238a072ec84dcea63e024df6510923c9de265d00dbbc0ee593665c723. 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/USA371030821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea468f0a0846aaeb7670e13db5e5ca53f9c74e6f45ef05c49873d4785d71b1b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USA371030822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8097809520d93a6f0167810dc8229fd5672c4c89002ddf9cda28f6294aea1a94. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ES8592101890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a9fb55abd7d22aa5908a0effa8d3c9f7f240ed42277ad95fc03d882a095e01. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/ES8592101888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf875a59e5508feaad270955d2d62e378620c619bf6ef4a6b393d0c769d10c1d7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ES8592101889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d4b80c024a8768ca8aa3299d2faba68d66e7cd92e8b8d5377069a90fa4975b. 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/ES8591901788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b5ce8206d277f79449b2b06a5959bd23e095b7d32e93f53c5b0d305ca8c334. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES8591901789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17fa793fe4614de601035850ba69bb65b8a85a109e6de01b7e8c3173a4711a71. 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/QM6P42378631.
Electro Harmonix Presents Más Rock and Roll Vol. One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf56246893641d4d26a6810cd7442b6ef14548449924f15e0b391f2fc0f7468d9. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QMFMG1310788.