Berrogüetto was a folk band from Galicia, formed in the spring of 1995. They were signed to BOA records and released their first album Navicularia in 1996, going on to receive various awards. The nam
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 0xaa23d9a9d6e55cb7281a88964a967cb5249230bd1b487dafbac7518974bd1c4c. 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/4c2e8da1-106b-4310-a6c8-079ced2bf77e.json and https://artists.proofprofile.net/proofs/artist/4c2e8da1-106b-4310-a6c8-079ced2bf77e.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 0xbedcc0bccc12677a992f70d119a03770d3b53becc69a6110acc28e31e7d7286f. 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/ES6089630202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e69f1162ff9de400ea83dcb359f778ee5ebee5f4e14aa0eb7833d5fd07afb7c. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES6089630203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664bd393836fece237bfcb650828f8f39bbb5e560312d71e749ddfba59f38b1e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:46:01Z), 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/ES6089630207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x334303d80cdae638d22c71513a5095802bb86659d8b932f54972aee94629f044. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ES6089630208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248da21fefca912f31de3c900d5cf1db39ee1087859e85e19f3ce55a698aa079. 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/ES6089931601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23605971cba55e68c395ccc8aa2d8d5baeeafc6263f523d6052d22dac5fe48e. 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/ES6089931602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8df3c2e181a571582676573c516dfdf6d7521cbbab173207e4aee6c7a9f9413. 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/ES6089931605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4e1f412f4f52a702a2a9570f5e2ab6bbde1399a0a17894e33b3622e39fc558. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ES6089931606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf30484aae8ef34878e1f30b59b46fbe2886f4c5db2fc18fb6312d8697cbdc0a. 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/ES6089931609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0cd8721b50b7bd8d715c8ab890c9c3223543ed1fa535e1f813a4b3bdb066b19. 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/ES6089931611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde4bdc8f611a1844114cfa1a200ae4a1924e8ffa17676d8a3d15eae120b37bb. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ES6080132902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeead35d08ab1d794507a528b1127e2a5f722127250110902113c21b3d1d9b8e2. 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/ES6080132903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5872add398d501820361562376eb79ba547ecde6eb0e15f937cfb5050e304f71. 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/ES6080132906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd35a065856bc24823d0f3cd76a62ba58395ccc48702d3758ea0fca26f6dd832. 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/ES6080132907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad06ebd2eceb351443fee1a56235e94abce817f5079738ef2d4b9c691537698c. 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/ES6080132910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec2ffc5d3cfcf0223660e9b083781c3baed63793d76299d1b20fc4293d69371. 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/ES6080132911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3365fd88ff78422bea4db5e7aaa743dc58606ae25ddcd21e5dcffd82e335300a. 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/ES6080132912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2b65532f171ce904b44bff5460104d15cecc4dbc6d2843789312575eea6d16. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES31C1000201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf896befee65cabc29058ae9ffd2cc26f26fdf71538532d7499b976be90bcd520. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/ES31C1000202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b6f47724c4ed12a59633aef4ab4ed2987eb14d663346e10d767d2e41b1487f. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/ES31C1000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40a09cde9da13b0e78cca18c7fde67fee603f873659600694048a8956a70fe4. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ES6080630101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38972dcae87016c82b0c52c2e8cacb3f3a282643ef9ce5e8a9e5816ac72553a9. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/ES6080630104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb0de4a96577c3a167bdc08456db36088a207b608c26f986b7ac9c65461ad7c. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/ES6080630106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0a36b75828011132454696644c1b43f7a845f9d6bf1cfc6f635ca1ebf20880. 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/ES6089831401.