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 0xad19ffd887a49c0717bb698b891c0b9a7a9d0f946a82c1531822b53f77eb558d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa148f8b-31f9-4bcc-ada3-2391aed79f64.json and https://artists.proofprofile.net/proofs/artist/fa148f8b-31f9-4bcc-ada3-2391aed79f64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gustos y Zapateados, Vol. 2 (De Guerrero y Michoacán) [Con las Mejores Bandas]
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 0xe3515a38352d749f3ddad78b18f4c21bf389fe70f9e631038bb54dee4e89cd95. 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/FRX201616780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74b1dbaa3d7b495669c9089541048182db727e24bc364a6b7cd8014e0bb0f054. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRX201616781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc775e7995ea55419c776d6cb0839ff73d0aaa9d7b8a91b6603f43d533e1afea8. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FRX201616782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf2915d371fbbd17a90083b23eacedfa9de161344505000efd8a5cbff7ef3f2. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FRX201616783.
Banda los Costeños de Zirándaro Guerrero
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538f5aa123ee845adb201592e62055a68e7544a12ce7163859e09ec8ce2a9803. 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/FRX201616785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4579ab88f1c1989bf9f4886c1c247e0447b0a2b8d1897a29c92a6c8bfd880f6c. 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/FRX201616786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fed67e5fb10e4518b9db9e185920ed78b0c075013816104b95defb6f0adbe3. 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/FRX201616787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a466338704e8a3dd5af5e2c759a88605c13961f0e48ba7108ae63374fa8b714. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/FRX201616789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ba5e9f6b1117b647a545ed31161f83a6cef7b67a33888baba90d63d34f73cc. 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/FRX201616791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c43dba7d2f0e4ae0fd7a49d315d22b1df0f150dfbbd45eccd703fae9155220. 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/FRX201616792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7985a07c83add0293d987d46cda2c9877494f25aab1fd7883794afb577afb8c. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/FRX201616793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5edd53215c31d9cfc8ae7a140faab438f7b7b7c80a0b4811754d7fd915c88e5f. 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/FRX201616794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17814c06ef55c007e614e61d03180d1d574856b2be7796b4334cca192c7d8692. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/FR2X41670230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaeac713fe01486c279a0ca3e38b5c3134395b295da241c1558709bb699de7b8. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FR2X41670231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefc31bf3db6e8b33cac090d427d6cde573c82925e4e8b4d5b43e06f909e72eae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR2X41670237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ebbda8a81d4a3ac5816e299858877eebfb1efa6e6e74c026f69a7a32f1f1f6. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6V82607985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18dee484a0e8fc904809e8203b59c0868c7ea28100493fbf1669f67912571df. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR6V82607987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f779286f0f912c236f8c37a5c7de75ac4b074d4eb9c1ead5a88e33917214620. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/FR6V82607991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4150f3b8f4f0abaf7db767b52fc5e461b48f0c28dd712f6851eed0eae3509f. 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/FR6V82607993.
Toros, Toros en Tierra Caliente (14 Exitos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb47fef469d9ebf081416d15032410d64096b43327cc9177cd78a06d8fe41505. 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/FR59R1655365.
Banda Sinaloense Acero de Pablo Molina Jr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e9cf682b88cae94309a2a7826b08f00477f86155fcce2f2b2caaaa843ba8f5c. Chain 2 (Bitcoin): anchored in block 960223 (2026-07-30T07:51:46Z), 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/FR59R1655367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aed0a55a7bb57d085b14267e4826c752696125063c26b6113239d456f747f8e. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/FR59R1655368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2366ec6f8296a2bf34fccdf7aabc50ce6c233e82884550ccc0cb8fadcccba6. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR59R1655370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ad8a4672700212a160b5338336d8772986dfb88c502a8ae20c417930d9d1b5. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/FR59R1655375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa036c37b0d65d2e8320bae65823e1074255381a61d7acf2247cb77a0dcd1804. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR59R1655378.