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 0x7119590791bb86429b610eaf2e35afc8cd01c854370610d0a0fe77f904576aed. 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/299548dc-b1d4-4fb5-96e1-b5cf79fc473c.json and https://artists.proofprofile.net/proofs/artist/299548dc-b1d4-4fb5-96e1-b5cf79fc473c.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 0x8778c01e798c9bf7916cc57614808595de4f0a50870ec45ca1b084e83241d641. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QZNJV2080239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f82ab658f93cd8ab96dccc34ccfadcbf3f7ea95bc1dacc31593f115fb464b9b. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZHZ32158570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0433ad984ff8b8ccb486f4366807536578f4dff652734ce7cbe0787fd0bca3e8. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QZHZ32158575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3bbbcb23266d5331e11cae94b1814f05e1975467474548e2ad337e7b3ecd44. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QZGLM2258940.
Buscando Rumbo / Déjenme Llorar Amigo - Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a89e9e9de15444a9fa943e1d08267408d7f5fbe9105461dc7aeda300f320f2. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/QZGLM2258947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8aa0a9481a27940224b3e1e10138c36c389182cbc714e3ff5dbad4c16384af7. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZGLM2258948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c544922692abaaf5fc0be02afbcb1e2adfb2266e4b2c537b33fb8ed9cc5e769. 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/ES71G2242110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a0b7cc6c0da82c00a4d782d000aa080dc435a63273382cbe9acfc771f4c142. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/ES71G2242116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91254b4ad110afcecb2254dc6e3a7c72c3301813b881ca0d73276aa6ec8b598. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:41:26Z), 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/ES71G2242122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd615b574db47e877b59b3742f58c88b32f6b63de7905a6966390755d7e5726ab. 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/ES71G2242111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef56fbbde8c79cddb294e1ce01b881f297b3f60e2b49634a0d9fdf83ee1e172f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ES71G2242112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989ab772a1a458f11fef7ab0d51b729017c1e3e122e9bc267e538148ffbd1fbe. 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/ES71G2242113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x270be4f1939be2e43eca1a2d44ae939daafb3e45f2e4f563c1965f5149d09cce. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:25:11Z), 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/ES71G2242114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c6a56588a27d179cd5b1ae744fee7eab555ddc52e0e8e84adbed2347adddc9. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/ES71G2242118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc60302d21b122870912109a3893157999a7b9ec28230ec322899ebc2839e0e. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/ES71G2242119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce2452dfa2b6ad410ac3ccc1c587bc6174010aa36663c9dab9f9d455a91e856. 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/ES71G2242121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf50b0cb94f461b2ec5b04012bec2bf4538c695c5d8bb9b50936ce6f3c2cb4b3. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:58:20Z), 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/ES71G2242123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9706ed676b318e5d85ba8f413ee7b773df594b0727c8e6bf667f75e029c9e1f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-20T12:04:34Z), 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/ES71G2338529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x440f44970d952ca9059fd8da46867cbfb6275aa3e3d7be14de6ea1973d801b18. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/ES71G2407914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbec4849d86f03f4dd8143ccf3b78074793c73a558986b9ce79e2abccc1e0c3a5. 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/ES71G2407915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ed5612d0ca1e86962120f3fdaeadc0e67e7da107853f5e0d558bfe4289da04. 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/ES71G2407916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3675c03d6c203b5c6b79de815ef1202776ecfe24cd3340a6372acb9aa7d234f. 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/ES71G2407919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8475cd8454eea9bab06a8a0bed2c2c3a216841073ef78f6943ad1ee9c69acb5d. 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/AR5UH2401150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dde7c90b8b20d939a1cd753b195e70818f5c03031218430aa37e1bbb3efd651. 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/AR5UH2400679.
Fiesta Ranchera Romantica: 365 / Como quisiera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ffb03a7a682ccf367328e89eb38a738b7e520b2100948adaee80043dc19696. 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/ES71G2415248.
Fiesta Ranchera Romantica: 365 / Como quisiera - Versión Extendida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d079527ad51ea6a25035e0d7c718e3c648d76ba47d95cf9c84bff80b904d009. 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/ES71G2415249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dde7c90b8b20d939a1cd753b195e70818f5c03031218430aa37e1bbb3efd651. 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/AR5UH2400679.
Fiesta Mix 3.0 Ranchera pop Corto: Con quien te olvido / Mentirosa / 365 / Tatuaje / Quiero saber de ti / Ya no somos ni seremos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce6087f3aacfa8ddbfe7b8d30281d4565d91e89d33473ff7a8004c07788b7c. 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/ES71G2432521.
Fiesta Mix 3.0 Ranchera pop: Con quien te olvido / Mentirosa / Tatuaje / Quiero saber de ti / Ya no somos ni seremos / Enséñame a olvidar / Aquí estaré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b13fc1842c179923bcc5200475b54c65d6516332211fb0c9510bee95b63f1d5. 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/ES71G2432522.