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 0x14eee2d481836f4cee4a4767883e474ee35f48473bdfc599560f1b7b6bd5e045. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8fd2b27-9d1c-4627-b50d-e4c5efb76ff1.json and https://artists.proofprofile.net/proofs/artist/c8fd2b27-9d1c-4627-b50d-e4c5efb76ff1.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 0xec7de5b320b7c819b40cdcdcb1224597a0345c55c0085bac2a957d1ad8f0fa5d. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/QZXLZ2522957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd527e2584e024899a4420eb845c99166049b4e6d1195354a3f88308db2a6ea64. 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/CA5KR1833199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4035e505dbc34ab39c07dedf27a98057c826f35bd2e29bf295cd2dd3011e95. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:04:26Z), 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/CA5KR1833200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1098dbc1058f5de31f7a86a46339fd4d23095eee5ad62112e853def291bafb2c. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/CA5KR1833204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d18c77768943dc07acec17ffa006643eff94a275335d1b8e61d177aa088a854. 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/CA5KR1835258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e34ca3259fa3e52c040e370205021b0acbba781cc8c066f5dcd57edf9493f84. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:53:22Z), 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/CA5KR1835259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2245c11c4a1c32d11da01988580cb135cce5baebb1e3b9677f4722e3ec34bd99. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:34:23Z), 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/CA5KR1835260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9bab4005333bc8d603f2eca81e70558788e8a785c5c4a6011066314891d060f. 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/CA5KR1835261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094f62e0c0f0e80be073d202a17eff228975f42f317df1f55ea2b0d540f2596f. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:23:10Z), 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/CA5KR1835262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45927b6de0c5f81834ec9a86e1ba6e0803e4b9741d619d599258c5a2ec58810f. 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/CA5KR1835268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc98b9e89d69638f3de331f6070fe7de3abaeab46dfb78e84f95131ab34c57c. 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/CA5KR1835232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab56b3f1aef1a160f4183a2f2bf39fd601d7b12facb25bcb431b04d217d0a21. 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/CA5KR1835235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623bd327d8f1ebfc7a8d7cba7a4a01b47561982413c8018c63fdc0f627cac04c. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/CA5KR1838780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccbe87d8c720607a003f68596fa42e624255d66d4afa0d0060a9e4047bfbaf89. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CA5KR1838781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x259f47ee133eb3d707942241925fb646820ea1da5065ae33e5192cd3da32d901. 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/CA5KR1838783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45494471b6cfbb6fd6584083ebbd101b159e43ced10c99363126130951c32467. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/CA5KR1838784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad2d322250f92d737d4c1afa090767fe6c1ec5d6683fc35f855454c4d08b8948. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T20:39:57Z), 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/CA5KR1838786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d10a782157bf8a83ca776b349761c2927d3479b5bc28611afaa8a00c6fc33e. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/CA5KR1838790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7deb6ca760344d4d4811708db767abca96e78791e10808abe0935c6efe357056. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:42:54Z), 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/US3DF1840538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefcafbe7c022c99bedb7f0fbd94062503e91882af51abbc9212fd7fdb0c3a674. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USANG1900130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75740175dcd9d7e33c1f31504e5542e928bb56774581b77da59775b429646489. Chain 2 (Bitcoin): anchored in block 958682 (2026-07-19T06:17:12Z), 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/USANG1900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f8728c737a5854932b0781d287b201f7b8d6b4e7082a2009bf8da9c069daa0. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:24:39Z), 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/USANG1900134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf68d7f0e0ffb662bbf0cb1659eec7f3ad6a7caa1cf7f3fd901250b8b76cbe2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USDXS2003356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dbd0380309692d91c6d4a1dfb95d36b32cfabace55c6e68143154f02b2a6492. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-22T02:20:36Z), 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/CA5KR0017688.
El Tiburón De Matamoros Tributo A Rigo Tovar Con...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27418ae5adc57e8d3fd6b405e960ac698281d3b97f8a501b6d304686effdfa29. 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/USANG2030813.
Los Grandes Cantan Con Fidencio Villanueva
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906bc83da6e98d1375f3c192c97e866dd7ff3fcddaa72666458ac74f27ce06ae. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/CA5KR0015577.