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 0x15c8cd26cf2a5c8334bd3afa3ddcacba6a471c681d0dc19f3f539f1d0b6663e3. 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/8764eed0-bf5e-4d1b-b89b-06e2840a5e8d.json and https://artists.proofprofile.net/proofs/artist/8764eed0-bf5e-4d1b-b89b-06e2840a5e8d.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 0x702f39125093df9caeacd293f1c808043144ff314e140dad11ae471abf7646e5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NL8RL2328331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea53cc7521ca046322a48bb8ca1de4e40c8e4d4c241d4fef83a07fa471767df. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/NL8RL2328338.
Los Más Bailables Y Juntitos Con Gloria Gómez Vol. 2
Pájaro de Libre Vuelo, En Un Solo Corazón, Cinco Por Ocho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a58e83fcae3191021cb3f217d69f1dd65fbcb59e5a981564e5d153ad64d7107. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/NL8RL2533725.
El Guaracazo Del Indio Pesado del Ritmo, Canta Angel Guaraca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d29c21cdf85afa97aa7df2921b2d76563d671bc3b1ee812c6cd3ae443f54b9. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/NL8RL2309944.
La Caña De Azúcar / El Chumadito / Olvido / Mi Cumbia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb2d028da412a18d8cc97aea6b771ed283dc72ec897fd1ecaa7a96ccd21dcb9c. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:03:54Z), 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/NL8RL2312674.
Por Las Calles de Cayambe / Cumbia Serrana / Cuando Llegaste Tú
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6644d1ca2340110d55e5316bdf6b9bbbb12eb6da1bcfd49bc1555ed62966c12. 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/NL8RL2312675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba324b191523ba97a261fcf230fe8c1792a35317fa4ee71828d88d61855f5f60. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/NL8RL2309948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e8fa2b56121ad29c5113226ffcccd2b33282041ac25a32f0dc80f60103b5be. 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/NL8RL2312679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64004b9a1558a2e160590c629305bf51f2ef1350c6382936377fe393739cb036. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/DGA0H2427641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a121febc992648f18620f21a2bdd9cbda965a39962143769d98cf131ae1a7c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DGA0H2427653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff00243d4d7b92dea793e248deccc80c25566c96b2eba75a5bb3d0759d0ceb55. 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/DGA0H2427646.
Las Mezcladitas Del Puuuu Y Las Del Tasss Vol. 2
Mezcladitas del Puuu Bailaditas del Taaas Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4879a94755b8e811426b4612336d249c0bf183520b34faf2e4d1cb37a8e080b2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NL8RL2535859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1204c47da1eb9cf7c7dd179abd3d81c3534ca47ca9c148f01d87c02d59e7ae73. 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/NL8RL2535860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bf6a994ba6408fab4d135ae25dea8e48464d5edf8f2c7db513ac5a821e7f35. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:43:07Z), 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/NL8RL2535861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92ec6e0d1c4e21f2a9d13dc2b24f5ba8e959cea035e130c6049d8b63248afd7. 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/NL8RL2535862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ba0d5c03a8361f7d58d6d08b4fe5b24155af070e3e816c25811b5f6f58ea4b. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:58:24Z), 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/QZN882312187.