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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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5124403925950f163ab4ca79b603e770335b7a6255ede5d158c481fe56b32959. 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/c8486431-3ab3-4769-98aa-f52636875a42.json and https://artists.proofprofile.net/proofs/artist/c8486431-3ab3-4769-98aa-f52636875a42.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f7d5bed48d79fa6fbcde323ad58a2e2f911f21f7e2ff77cc76065c15eb3ac2. 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/USUTV2301686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b992809596310a1f06de632ad2b1ff74b36072a0e66b9d8592274b9442142ab. 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/USUTV2301671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060b59c46bc7ce34ccd49b547eff707e9c1793cb2b118d3b81419f7fe8af1d70. 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/USUTV2201605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a749a48cd738862141ee08fca2de1590b0412fdaa33b4e75fab43994b4d6e9f. 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/USUTV2301654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c0450a5eb5fedd34208f6d1af6ce05a7967ad6d5eb0a7f1a7d25a259a133db. 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/USUTV2301668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1e964629b3cec37578173d9890c0ee2e13f2742cb8d761bcc21d2a0a9e8ba6. 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/USUTV2201578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf9ad79d873ef1de22b22fad117c43de27a1456e0e79fe6f60293e2ae190b8c. 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/USUTV2201539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829377eeaa8e27d31d1c90f65af38daae0e382c611d4022ea4c204440c6abec9. 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/USUTV2201532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797b0869ece344bfdadd166c1af5621039cf8d146253b05138e3e24dae6b09b6. 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/USUTV2201570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee569013c619056bb039e3bb339a03c377b9af70dd5bba2b817385288a59052. 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/USUTV2201572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45407708ce49b8691709dac6facfe96bc0dd5e9664284c3964314c86015e456. 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/USUTV2101390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0428b8d596a2553f649dfe3cbd4c26db0bbe205c702d13ac55c7e55ac939187a. 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/USUTV2101269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efe7b059c10532e2b9d265ee85be57e4a8b6321fb2428f7977e4fc16e487053. 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/USUTV2101271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6790c7cb4a3966c227d53d682039c4210442141645aa6c63d992120aadd3a8a7. 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/USUTV2101272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e56777a295d39c6fef51dd5be17b87d2afdab718bbe6adb931573edda032a9. 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/USUTV2101273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e18a06ad32c27038dad0da1cfc86f8db5cb7a0f84eb811a8d293bd787958b2. 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/USUTV2101275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9059cbd30cb99d6f77e6b00bf6cca3b75da4c859aad596d565f023e34c59f426. 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/USUTV2101277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c90a68a16ff5672df7831207e5d84e2d5b0b835069a3d42678a9b7c2064bf19. 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/USUTV2101278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37841d19256c8e4e9cdbfdba3d0edbf44150f63fc68efade878076fde632082a. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:50:34Z), 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/US7VG1968146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4511bb160237803232e1e632d1ec7eac8b356e9a0416bcd56f21710b63cb8c7. 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/US7VG1968149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355a461076098b4158dd191ac290d75e45164e6143260592c0aae3912564ce6a. 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/US7VG1968156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fef3a9a737bc035e46b6691850e40c329535c9e058d8629900aad56f600fc5d. 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/MXB351500141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c75d49f4db12b1d999075a74ba7c551a276471cb614d5fa3233991f76fcafc8. 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/MXB351500144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3287717e984275b38cd8e605a677c309abc52ad5344e8e9dca9a21679d1307. 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/USV351409481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae921b7e7d2bc6dd42cdd90773f9f3d915a947e1e24216d911d10f97c3a477a6. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T07:21:40Z), 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/USV351409488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68f6af0b3b693ed1d31f4bf4e0f040cb6548a6d2f3d94b9c49cea9a3442f26d. 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/USV351409492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcad99a7fd74c1b63360eb5ef2cd8fe2a5070129200febe75ca84f2290b02836. 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/USA561431828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357254d104333829cc9050f621a8472d37843624e46c6ec2260fc9d4edff50a7. 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/USA561431835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a49d394bcb264134e8f2e34d61db5b0a5bddb6fd14f4986ce7521fcab39b03. 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/USA561431838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e28429c18f062cb8119df8baaabb000c527f1ea1c224c0aa4c4da5968004f3. 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/USA371250928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85d40f0e45168288f7e29a719f40b2302f38f10b460e4de41be93c4600638817. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USA371250932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70171a42ed24528096f81be372612d22a62f8137e9e29e0b64dbbd1c655f72cb. 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/USA371250937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e7a1f41ba76b816e5df7ad20b290dc35739be10687ff1bd6b3f089d7f8d69f. 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/USA371250939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845833f6acc46f4e3369a28ae96d347fe0ce8f284d956318d1a51163f6d6abb3. 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/USUTV2501783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2a8267cfc223687dbff08b7ebb8e84241e1f81bf027e90ceb44889c3bca6fd. 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/USUTV2401753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c0450a5eb5fedd34208f6d1af6ce05a7967ad6d5eb0a7f1a7d25a259a133db. 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/USUTV2301668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a749a48cd738862141ee08fca2de1590b0412fdaa33b4e75fab43994b4d6e9f. 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/USUTV2301654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1e964629b3cec37578173d9890c0ee2e13f2742cb8d761bcc21d2a0a9e8ba6. 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/USUTV2201578.
Popurrí Ranchero: Y Llegaste Tú/El Heredero/Las Dos Hectáreas
Popurrí No. 1 Arriba el Roble/ Mi Gusto Es/ El Sauce y la Palma/ El Sinaloense/ Estoy Sufriendo