thumb|250px| Los Brincos (the Jumps) were one of the most successful Spanish rock bands of the 1960s, and were sometimes called the "Spanish Beatles".Made in Spain: Studies in Popular Music, ed. Sílvi
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 0xe8453898bb5d7c89c3b94e4e4a2993697c26efd3e2f7c870538cb65668fe1f0c. 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/c8fb0644-87ad-43c2-802f-47d3e135a446.json and https://artists.proofprofile.net/proofs/artist/c8fb0644-87ad-43c2-802f-47d3e135a446.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 0x1a507ea54a991e68249cdcb44d2c5711f618aae638048b10db6fa7c6716ae20d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:21:38Z), 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/ES5100100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da13532eabdb2bbe5a067c10a3617055b6e9895a01328542e899346e8adb22e. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:17:02Z), 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/ES5100100290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da8449c04791a7805c48e5a7da4ae89dd7cdc3dd0c36477afadf6c5cf5cb3bd. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:32:01Z), 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/ES5100100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2a33323acdc9653cf891d1651982b11ecaa07b51d415f9deb28ae7a23b1c85. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/ES5100100309.
Bravo por los Brincos Medley: Mejor / Flamenco / Un Sorbito de Champagne
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030c5c39580f139fbfa922bf171870c57bd1cbbeffa18f7f87c0eb9060766fe0. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ESA031912420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78531e22697af253e6990a1afc4a19cbb5e2726ee2a9ee46e82ec5137a33544. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ES5106400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11dfa54827f2d69d2cd24bc72f1c8139fd0a48ef0f6af5db97fb7b00da65e07. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:49:03Z), 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/ESA031424570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f74244a0a456437115390fa0f50b623ffa0f011464cb0b55b84262c8a0f032. 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/ESA031424574.
Reserva Especial: Todos los Grandres Éxitos 1964 - 1971
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a398901b3559a2512eb4ea6110454e0fb45af6cdf3827e63051cb67b556fe6. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/ES5100100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5991b3baabc64e0c8f5c2d848ef1cce26c14350328db5f2a9481642ff049fb47. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES5100100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44288011de7d586da88d29febfd720f37fd4d16dde3e3f9326565e20ae64bbda. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ES5100100299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7cbb0a3e6e0c31d9b4630706ca05395f2db4389d78f9614da214b94720f408. 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/ES5100100312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1ee6fb2eb6627418fe64e3251233d9d6ff544034f8af814bc989c19d468336. 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/ES5100100316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e2f4160721d7dc81443e15be698e9cd686fa1167d2bcd0b974ee663c49b755b. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:11:26Z), 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/ES5100100322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d7fb50657a56cecd14f43b69a98325aeaa23a944b5608ffa1c40f54eb37397. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES5100100318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda90601261dcd7a0103e5a98b2d8407f7ad738f64f1b8a74b4dad70db6c41458. 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/ES5106700052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360fd69e7d32e9e0ecbd062ba25610c10e3f98fadeda5e7827b0cf13bcf6ed12. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/ES5106700054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664df1705a99b9c936a235cdd6d2991aacda682a5a0f6c1fef2ddea45c10f7a9. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/ES5106800027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65dd7690b52bd64814e2dcd5c016d7e0f8752ac47e4d876fa4fcb06be6eec967. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:27:51Z), 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/ES64A1045214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592ae61731ed9e6f8fb5f5d4093d28c3cb8467480465b4f323b28c22d7d5ca88. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ES64A1050016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647f8eb82fd43e72dbe6b47fd3a54612dd5113fd236942ff7845672350ae5ad3. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QM6P41549027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c8dbdfc5a9167c6f5f3c1d3342f88a2622b1730fe16ca74fa10d16fe87b27b0. 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/QM6P41549030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fef1b3f41706a83a7b79526ae7076f80f5a3ee5f336c09b4b299a978ccdce2b. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QM6P41549031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23148cd3f28990c980089db678413aed696498be85a797f384aa7cc679be2d53. Chain 2 (Bitcoin): anchored in block 957644 (2026-07-12T03:18:52Z), 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/QM6P41549032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d37fb0cf59cfcb2aaf1ae92640a307241ee805e46ac897548ea44212157bbc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM6P41549033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ef91ad06a62681fa5529663d279a94605af9c7c9adbcdfaa181c649720be14. 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/QM6P41549035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afd92d6da8b899a43036c5ddfe11480bc6acf2c5b4ff1365982c6b0ae819f92. 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/QM6P41549036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ff78b19f61404b94e7ca8e931d6c7b4e75789ea70909970136d47903cbbf7d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM6P41549037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed3b5ede8b39c697ed241035c4f14a24f722842b6ff2685339d3da0de2e63dd. 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/QM6P41549038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f1369735c749ec45bf09733d726d41289089e65be60bf57953fbe3dfb044d0. 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/ES71G1307162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5991b3baabc64e0c8f5c2d848ef1cce26c14350328db5f2a9481642ff049fb47. 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/ES5100100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1a887b7498b59d3f4c686c437d6e666a1b1cc6f17e75525806f580f7c54f51. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:53:16Z), 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/ES5100100301.