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 0xed77ded646924424571065ec15befd74f18c63b9db9c91b5c3e662397be384e4. 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/17a2c0cb-8021-4d70-95e0-2ca105a996a2.json and https://artists.proofprofile.net/proofs/artist/17a2c0cb-8021-4d70-95e0-2ca105a996a2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Corridos El Estilo Ee Los Dos Ee La Sierra
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 0xa8c03c1fb112f3509571bdc33402e94411f252ec4b8d4161126cdd04b7946057. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/MXF399401469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771e0c75b5cfa2febff9d6d886b328f5d11aa560ea54d24a1f9bf5b83d2bdd0f. 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/MXF399401465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c9f4a112b9eb4ea28d88b438a744f817e7d146acf1bf7daca7a7fcac2d076cb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/MXF399401466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30f1c6578d6f7ede1a3bd41b8e0b0d13fb9c1b2ea927953574dde539c9450db. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/MXF399401470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c3aee4017e243c76b7861535ec975fa089bd6167e8e3a165f9846159c7f81a0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/MXF399401473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fbfa6ed43654922237816ad444fb6b08a82950dce1bb0fae9fe453aebe88c8. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USZBG1200437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b472bfbaf839a05917390d4696ab3ea51ba5a38074b7ab2c23a344ba88cc23. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:07:06Z), 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/USZBG1200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cfdcf751d18e9327e90537f2493697c1f19f23bc1bfd3291e7b67f4fe9cc208. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USZBG1200439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27305faec1f8bf46ed21663b20e62bc4a9fab421a3c1e803f00899895bde01c5. 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/USZBG1200445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbe75a4318bc2f14c81ff1b9790377fd825a430deb57f53a00140e5421b7a39. 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/USZBG1200447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013ecfc99d1ab3a60a34cf3236e48ca07404320dcf1bdaee914f6fb6c982dbaf. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/USZBG1200451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5651672bad0a803d776917a77f5f2fe9599a156650cc2c804951f7cefe3a4a6. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/US3DF1439203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3605166336dcc959f8a5a238bd13cf33039e8ef421bdd72908f8798945fa032. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/US3DF1439205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48f96c5137869404d547698d7590612aa975eefedf094c7aa2dfe7ff3903bb7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US3DF1439207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fb36cb16f35b1cffb110c6d950109f9f4f3ca13377eb1b3ca3bda029f3764b. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/US3DF1439208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac463bd53c4bed628f395b5c2dac9a496c89b31080d98eaabee5bb6fb84808ed. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:41:41Z), 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/US3DF1439211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c37957afc308138590b2c30f8483113ba5f680c79383677d74bb8d00b86855. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/QM4TW1508710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79287adac6125c6865d14dd870ca62bb76d358e39ac5f54c7eb9066094fbe38e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QM4TW1508708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c08e22eea2e625a2a80f25cc2d9cb18b7f1b2d1eaeffeca562fea6da661139. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:58:12Z), 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/QM4TW1508763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db6453ef9c69d997c50bd9cd4e14b469d97d28603cc6e0f072721e5ef6fadb3. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:59:50Z), 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/QM3DF2170895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba80140948ed47339dba905279c1427e0a9f9afa8102f71b8b180355f6fc2e. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QM3DF2170896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3f64d71630c76f23e05d43212919c1dae8ef266c2753e6577883e997087be1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM3DF2170903.
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