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 0xac34dbd47df9da04be47f7ef4cfc53f00fcd0496c27c6fe268da8f2e5ff6b020. 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/42b61b49-fa54-45da-b7ad-b7ffdbdd879f.json and https://artists.proofprofile.net/proofs/artist/42b61b49-fa54-45da-b7ad-b7ffdbdd879f.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 0xda53071ea823e28880309955a2a5974e722fea1855bc9322dbbf92f8d7578fef. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES61964336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40ada3f5e65f028cdd611dd9b1217b86d0418068fc75176d8bb752e9631abc2. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T02:57:05Z), 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/QZES61964339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d166f5029d46ffd92f995329656d9696e559c015c2cd0d1227c3c739d391048. Chain 2 (Bitcoin): anchored in block 958116 (2026-07-15T09:59:12Z), 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/QZES61964340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd77b8e19a62b92b992c86d74b155aba8ce5f960a0c2176161b87dd011f02ea. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZES61964341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482a5089c136e450ebcbdc6cc813fbb5d39623c2df4df91ea11704290eaf515b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:53:46Z), 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/QZES61964342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14088aea920dd644e021470fc5b6e50355eccc4ed08241e43b993aeaa7be4ce. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZES61964343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482a5089c136e450ebcbdc6cc813fbb5d39623c2df4df91ea11704290eaf515b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZES61964342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969d76f7671d34142afd290fe1cb57e55fd5b40ee1a662da1a0f5d3afee8fba0. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/QZES61964347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969d76f7671d34142afd290fe1cb57e55fd5b40ee1a662da1a0f5d3afee8fba0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZES61964347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3debbbf4c8286e51677afbdc1206691b3165e288b8f78821f17418966ae9c4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZHN61993982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d387649e648e14653cb8fd81d4d2c761aa7934a9c47528f6edb6f67f9cda4c0. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6P1934609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe808ee8eedd8ab25ad6f3de781bfff95c87c73086cad1c31f051ec5bfe0187b6. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/QZFZ62094230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46f426c2b5058743112b6d6737ff2d65df8137846efb68a622ed4053fab22c5. 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/MXD782202850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9088dfde36c0bf0a6eeb1dcf81edfb5780f21a41fd02a5b17e0499f9d57654ad. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:49:52Z), 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/MXD782203716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555bf153c962389e8487b16a73a124b20ee5918ce9934213cf98b033c88ce094. 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/MXD782400592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ca8f7d8aa825d343581e3914de2e7183ddcfde96fb359833d72122fe0dea9e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/MXD782402046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be0b76da720c0ee434ed9aca1b05fd20ad956689773737d0f3dccc70b75f10e. 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/MXD782402045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc53a68c5a364a132c36a492a11b6c43c63dc182aeee2ca6e1472029e367500cb. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:38:37Z), 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/MXD782402047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62051386be6d1f3c5d8c850f06559801964c27c82224f8500f9fb744ab65fc4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXD782402048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c6855bd797f18af0cbb950965ca516c47233e7e46038b96eb31aea29446128. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXD782402049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72e1b77dbe06c402422228d1a1b579575db0d3318261a4edd4ce06bd9bcdc2d5. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/MXD782402050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca98f643921597e796577f67329895648d6219c3ba93805c4995b0a653d04d7. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:48:42Z), 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/MXD782402051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56576a1077c2b00b22874a2fcb24b53e45ce27480d3017df7d0603b0999a24b. 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/MXD782402293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e51716e7cfe5127909528829290ab97f2a07cfcea89d4aa149b31745cb95d1e. 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/MXD782402231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5823b02fd51650b9c7e9b433cde247dbe485ee9b94f226c28e0348a4e463b43. 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/MXF152500243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ef259da9472b3ffa05d97d48db41e73bbc87c2be91120e64d34ef60a3f8072. 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/BK4DA2503121.
Cóyotl (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6261eddc40665e739eb95fc5ded6c577a73e17838a9f53fe967490e6fdc14aa2. 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/MXF152500498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebab2fc4a696a864ace095a2b641d288f637885b7a61a44e2dc6151f8a1334fc. 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/QZVR82300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x871bbb244d8ddaf568038283e125376646fa91a8547e58d1a1e3fcdbf812a719. 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/USA2P2441394.
Cumbia Cande - En Vivo Desde el Teatro Metropólitan
Ritmo, Sabor & Cumbia (En Vivo Desde el Teatro Metropólitan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56667f01f42ac78db08863120d90e5f8eeff970be241ffdb0ac89794e36c1048. 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/QZTVM2310353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c5801e08bec3396ce069fa9456f7aebb61a0e1c19d749d776553131f046471. 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/MXF152500413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d5e1e8b213669c2802eade2a8fe51e4fcf1e2eb2ea856ba918e6a88ebfbd58. 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/MXF152402389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6345e0fbc047d6189052952268a73116e475274a3864b48fe4ecdd612ca3bd0. 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/MXF152401761.
El Niño - feat. Eme Malafe, Los Pream, Mélissa Hié, Ophélia Hié, Joan as Police Woman, Marco Carrión & Alansito Vega
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd46b0d79cdf6661514e0b5af65a91eb8529c1f3d09584da4f7236689faeea3fb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GB5KW2500637.