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 0x0024a3bc72774592d4b16ecfaa2b490d98a1759b866ce6314eba9a9ea92f2ec6. 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/7e25e226-f03e-44e1-a9c3-fbf0d189bc8a.json and https://artists.proofprofile.net/proofs/artist/7e25e226-f03e-44e1-a9c3-fbf0d189bc8a.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 0x3096539ae6ca080124fffb83c2f087b0d896f5d51fc7a92a4554b5a131d35bf7. 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/BK4DA2430699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f45e321afcf04688b5e7965649b15f5630e96e33f6098c48c0cf809c202085. 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/BK4DA2430708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a477e72a227b57f6c9dfba3ab03a1063d9183c9294efcbca17351b9c2d7a0b1. 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/BK4DA2430710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb84c9d9947fef59b81d84bba8081bbf51b227cb9a449ee018c85d252107baae. 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/BK4DA2428780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a66da12fc154b28feccc5fa8b66e0b5328ecbc6d9c0820b24261356ce0e2e06. 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/BK4DA2464798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3725a4ff7eef0f4ad6d6f9cc38d2b79d4e0f8d9e436ff4a3cf9ea232ec2f03b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDXS2510762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78595c25d93863d1489b7e1c5933c2e21e7bc9674093190914e4d778a890457d. 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/BK4DA2513259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03677d00d5dfa3b28094ac8ad06afcbf657f686f59845b0df074cd37e9d4ef4. 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/BK4DA2511629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4cf4c76a5231fc8c1c75432142d78d74db9040f9880b529ce8611836f25ca6. 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/BK4DA2505455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115bd45d78e9b3f018a7920671ad0a46bba401c0afa8bd815f38a5a369f952a3. 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/BK4DA2464470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc296877970ef93fec3e1c5231cc48eeece265360244f8fb58d8e3a695a5b8722. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USDXS2500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e84a8cfc78e97096a1127be958731b35faa598dcb8bcf21c96cbe5a69c4a77. 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/USDXS2402027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9200bfd0d2a039929c269eb5913b25112d40a00211dfc664e1d3039952e304. 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/AEA3A2314080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6add346bd3030b3083d1b6b29c863cc71815d56c9ba31b90b83aa2d2a7c9e138. 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/USDXS2402026.
Europa (feat. Uriel Pierce, Jay Rivas, Herson & King Dvid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb270b0e5cdeb9bf3bc11b95758891e70ec24dd6d4ddea0ace7abec6cc8073a0. 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/BK4DA2451145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6ff2a00933c7eba449d9a0ae1929fb19fbd624f33d92fa3c74734a30d4fd19. 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/GXD7V2424192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09244a61338d681a12ea178368728278f12929b2f61ad636f9bd0c9f3f3f443. 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/BK4DA2414403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969ce32089e1a3984a0079b6a981434510defa593e9fbb5d0af82b0f4af11c5f. 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/BK4DA2413765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2839bdc65aca89a3364b8cfb36b86cc6ce8ed9b147bfaeae61c973c583b1469c. 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/BK4DA2405919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b1d9bbb72e2e51b6cd16076593841d4fabff80f07010d90455cc670f665a4f9. 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/USDXS2400262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5338316655ff87629cccdec64c46d3fbfda10105ced4006396366fe833b2b127. 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/SGW502367176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e4fee4381129605f0f9ea31779ad7bb366392d35f3e5ec04ef81740ba75177. 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/QZTAU2343614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb15c2bd38e7d86f29c3431c695a98906f534b7b32acb62a157ef9ef62bdb3d1. 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/US7VG2363000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c69ba34e039b37465e01be99d457894d970c16e2175c54905fdce45ce423b2. 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/QZTAY2231400.
INSTALÁRTELO (feat. Sleezy O & Young Gallo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70274294f8f12e4dbd1b69ca60ace78a80cf338b899b5cfe406637ca69a225c. 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/BK4DA2319415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3dafc0b85593db8e216c3114363d1e8f7cf79ae640e3fc96279725873d33f9. 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/BK4DA2319416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2cef4565bdc0d073de5b1c4d744a65a10e2d256e697bc3d0f1ee814dfcc6f06. 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/BK4DA2319421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4557d38c99ae92b580f0ccb81c4a427796025108477a3692e60fab2b182b6c4f. 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/BK4DA2319422.
Vida Malfiosa (feat. Yeyo & Young Gallo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d3413f52c551909e4c10e2f538be1b2387acf2d946cf2ea297377072f40446. 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/BK4DA2319429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63699e45b397781393115e7e873af950f4b8f588e85cf8d45bb309d5a4c80407. 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/USDXS2400554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70274294f8f12e4dbd1b69ca60ace78a80cf338b899b5cfe406637ca69a225c. 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/BK4DA2319415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bf193b7e76db818b268e3a0c1c8c4ba87d2a67c7e52fb06b1222490a46da18. 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/BK4DA2307609.
LA REINA DEL REGGAETON MEXICANO: TOMO I: La chica de las poesías
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b9823958569dbb48fe64f967dadf6da37fca314ba05e9509299115d7955d52. 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/BK4DA2451192.