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 0x3a0b245045659ce4194fb2558bf95b4c83c5f725529f41020743e302ccb2b2f8. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/40cdfbee-f843-4e58-b8bb-31e0c3e6200f.json and https://artists.proofprofile.net/proofs/artist/40cdfbee-f843-4e58-b8bb-31e0c3e6200f.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 0xd0bcc92a8886df73c4da070325ca03d703ab2e6812256ac9dcebe76560e051ed. 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/FRS182137681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc27a5b84424f23102ab066e43b18541d2d3da513ccd0444dfe03e0e3ee6324. 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/FRS182137682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd6ab5dd7438fcf30eca10b7d76e91fad4c236678c110530b290dfb14682002. 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/FRX452189616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c862b1352d9a19a0b807c802b440c13aa034efbca04ce5fee119be65e71ca6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX282166301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd2d453e25e62debbe1f78263190dc4510284abe9dc9f9ca8b184ac2cb751a5. 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/FR96X2199598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95af978c1f5ebb1b43ff5fc285e0bed67945a53d714c053bdce38782d5e4cec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR96X2199600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4488ee33fd9f9bd34b8c185f03a927c7570e1381f42fd15b384db913cd9b87. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR96X2199601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x286d96f6f02d5167a02e12590de8ba15dfce9b4e37ab3780ae685223fa940c48. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/FR96X2199602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f15abfffde86866ebf3c80cb55b014c9ad7fa2f6c1e0d1f5888e3a702d4b17. 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/FR96X2199603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71dddf984134fdcdde870232fa7f8d4be473b2eca3eeb1bc722007d07ed65094. 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/FR96X2199604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0fba8743dab3948efadc1c8b0fd7d3679d135a205ef2ed9ffdb01e7ca25fa88. 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/FR96X2199605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c02315f2001bd539a057cb92cb4440612135095f3e4aa6f199d000e17dfff12. 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/FR96X2199607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf9ab6ff5e58a5826fd7df216e811aa5cad27678f1d3cf3ea66e4468523821d. 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/FR96X2199610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ba7a893c81d19680abcb622d5024c0d1d40d8e72d6fa64e7c25b05a6cb138d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX202053929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457dacc4cb6aeecda4e6eaa102c515227f776976d5fd98ea6fab8005614bf17c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR96X2030072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e47c46b50c5d49ff4b13fac13a3c4c8bd9d189baf8987ab244ff464d40f834b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR96X1971014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061bffbf8019028da881732c4b013ee048970a23a42d20ca749b0f6e8080a58d. 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/FRX201912992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136a0e7fded8c60e165fa6b6ac30fbc211b92af9d3fd60ebb1f9f07512745105. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX201912995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832d90a62f558d232cd1940034b40dfb9e571667d840d5e2d0cfac4f35e812b4. 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/USHM22098529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9472e8c8914a1c19789fb81e939a3170837923a61f53c326fc1468cb3e2a4a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USHM22098531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffe88e3b6fc10a99d55a18156808d573cf45aa283bf975239cdf6356b2625159. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA062354041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea19690c978e9f838fff10927c521f5e647fc6560949da08fce8f0b0ade7d42f. 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/QZDQH2372334.
Jorge Santacruz Y Su Grupo Quinto Elemento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff11f306c655352c01a0ab978dae69764bd68dcd65577845dca721f88739d33. 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/FR59R2302103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f7510a154d7f30f4ea00c2ea34c0638a4e9dbf6b7229e60f8e80cc0653aa7d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USDXS2202166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ce7245168853d4959fc08fe12e9df5f94153daf46b541791671994abc7fe94. 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/DGA082388894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90fdc1b14f4d6b8f3201dcc534ded43e66fa3cc6d636158ce94908e81b592e3. 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/DGA0L2397306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa976fbceb6bfca0a0a4815e2ea3f674b05e9d7b50008d409934fbaad5d34a512. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DGA0R2404041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2cc456983444e4437092518dc1ea128a98d5d6acb507e1a7573232ac4cc8bc. 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/QZDQH2436807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81fb4e68598fc64c0ad2f020175ebd077fc9073ce2d65149e8f62a9d3b8872fd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDQH2432432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd007caa949a45de2ab37d520643eedf53dba295ad7b7498fc53367423d9d627. 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/USA2P2476860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09208a2e000d32a7a3dbac12a42510eeabfc81ec014d4624f2002d22267fd81. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DGA0S2460369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b0d972f5232d65cb72db342ecdf11081dc1d994c11ce04af8b6796c902ba43b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR10S2545729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90b874d4fba8dd75ae43649f677f095b2ab443a15548a6e05b201b1f2aab663. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2427557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e42108d79fca9af333fd31f5ac58802cdfbe46d7381cf67a059557ea1bcbb4. 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/QZDQH2421528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed4ba386a65a12542243e3be0b057bfeff30b7390227f13764481391542f7c5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2418101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d55221dd8d45345be358b5e25f0b2770d0ca4a988b5d2dd59d0364a456197e4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US3DF2436114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf1d409460ba6bf81078e0d503d19a4e6aedb111f8d8108d66c0fa443c836e09. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRX202479083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db6508d5f60ec1fec9b9e2534864c4e0d1b8301d6177d867eaa2787a003c50c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2412690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c0bd0ac18eb70cdfce9eef7912632ac672ffaebfb413ef45c908a9c37a625d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZDQH2412689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15b1287f13b758a91f62de2c1e344d3af3dd981e28307da8f0fabc68b39eea1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZDQH2412691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8702c5a88228cee28b68a59dc4c77dd6aeb6f2a0d11d86bdd645338f8c11a1d9. 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/QZDQH2410648.