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 0x4fad92b4b77e218cb673e6a24a8180e19e9036329ffe9ed5bab863fa108e3dbe. Chain 2 (Bitcoin): anchored in block 953907 (2026-06-16T07:39:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/177e0aa6-ce40-42a0-8c5f-605ed660ea01.json and https://artists.proofprofile.net/proofs/artist/177e0aa6-ce40-42a0-8c5f-605ed660ea01.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 0xcb77337da337571a26c24a54c5377a3384e516647c0819910c3c54b9ad19c611. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5701700800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c487efe3c25e9f9920f23ed6022f4cff1216cb0fb2a9cbb4a02461cd701a7c1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5701700802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7148381f9876c88a593f0617682f09eb64c9aba56f29b8d1a4867d46dbaef6. 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/ES5701700805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e72b3bc023ee9f0a65454a1263470a246f9230b97b898e9cc0be6d5ebd74822. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5701700808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bcfcd302eebcadd69066c7e292dd867bf5fbe76a12c818c27ba7c9742e7cee4. 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/ES5701700809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc182e37837188434ea4580298f21c3edddb6d598553340d4e25c65b8f8240a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES5701700824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x101db88976b1489c313b8f539ae2b9edf474de1fe572350c5cf8cc53940438f7. 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/ES5701700828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd8a28d3841f84ffccf6d80323a4d2b5ed8349fcda093f703f1912d3f28cf09. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES5701700803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d49625497e30f8b3d49eb3cd2eb5201dc9e1e1ffe30025d131c9298c9a90dbc. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES5701700804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f4e310d2c4dee224f64ebb2c8ead2dc9590dcf546bc779281776a74f467286. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/ES5701700806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf50f22571fb394969b593593453ea74dd95e8c7c2d18dd6e5b4a0505a7b1fc73. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ES5701700807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4a270a1926b0f8d860854bb8329ed7666f9458f62ebe3f889e474e3292daba. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/ES5701700834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730436412fda4a7d49a1a46dccedb426939e9553f223e80072776bf61db579ec. 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/ES71G1502739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf871b20debd0a876d4f2ae2bae0310357358a061d00cb389c034c99ad4bbd14. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES71G1502744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e721f6e95f82ee0e8984ca7bc5d6c5121cd41fffe2e8dcc1c0f4d401cd62232. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/ES71G1502740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996b7704b2b7b5324966ba3bd02d6fc61e443f20d9dfede6cfff4792bdac371a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ES7141100061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4228bf68f8528075c47acc8f6c3fcb573cc9d070cf4efbbd05ea0cfefbadc8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES7141100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ff847e076f52e3a2382c4cfad7f05568f21578bbb8c8d053f11f2eae143a4a. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/ES7141100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e35fa3f1ccd8499539e19e06893b6e3d31a49a9afbd772d307a205ce644867. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES7141100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ad61b1e469fed559e8aece6b70291498547f64a5744f506453d45f38cf8dd7. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/ES7141100064.
El mejor gol de Cunningham (Deconstruida)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5fc2a5346b5844df52d70a2240040241ca356c18b9e509360111cb40126b99. 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/ES29B1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd4ecb4a41e793bb693df1b8d23ff48873a92f036949c0fe101f822ace8004c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES29B1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03d8ba0a6cd66e873498757d8e05c2782d541f2ffd5799186dd53c47051395c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES29B1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada7e05a012c3db5fd40f9ed1fa34753c2cc4cb9c15265c68a2831cc80a649fa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES29B1600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540d260d07814a77db4e5f83bde2ebc5a6c2a1160d3fe662804a2f7db389364c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES29B1600011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913cd7eb0af4a29b1c97acdbc5488ae4417dcf1760d3838789e8cf4a0c0b3eab. 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/ES29B1600012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5813cf05d69af259c73737dffb93e61687fecb1bc772ef01e81e33318062e774. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/ES29B1600013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d30789c1c311106e43d2de0e0ccdcbe19741f6c4ec1feacdbd84976984ae23. 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/ES29B1600015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33ec88de3ff8bb22688233be8d442e944d83b979a526ac9ab7f15b2964a55bf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES29B1600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec0bc94a7907689240e88054dd0b44ed17f1a5d49f82d9a47eb80db4e02299e. 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/ES29B1600021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001ed88092ce1309f9daf32fa1a37281c51b1a72b68a08b6e9ecbe88da09f78b. 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/ES29B1600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6b23d836967f04ad718dff0678d9b2f657eee8d3474c9c3a996cd1c2e199df. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/ES29B1600002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96373e39d73278ec4d1a88e59736d68465f7f3c2e62f642d4131d0191b7dbe12. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES6172323070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23564cafa80ca1ddfa2878270c9ad5bd554c57888ee66a560a5d1f3e7abbe9f8. 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/ES6172323115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dbe54a4f0ce0c681734e112194c370c4d1cd0c8943b7fe0ee3375f61c5c2f0c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES6172323066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf1bae2b8b6c9b74db09286c2d7f035601df2379513697cc12929a230029fc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES6172323119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ab0e0f8ef63208664e0003536be0aed4e4d18fbb87f7a02d923ac8017061a8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/ES6172323094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e23c82d7c7c48a72eebddfec88d6e96934bd3576a4236923c3a266974f6e2a9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES6610400067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e25ea2a5fe6f641863f19dca86e744c6bd3f56825278e005edc49825702c736. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES6610400068.
Con Los Ojos Abiertos (Versiones Pandémicas)