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 0x36dabe08869b4d4231155a1ee1ca85693ef49e9744f03daaa13b1ab1b22a3dac. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ab78717-d452-4d5c-ad2d-02cd6d494315.json and https://artists.proofprofile.net/proofs/artist/3ab78717-d452-4d5c-ad2d-02cd6d494315.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Naco Es Chido - la Verdadera Historia de Botellita de Jerez-
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 0xc4ce37f9dab45774ea709b36fe8df478181a4ba1a3e241884cd369bb7c30eaa9. 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/MXF601200997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe394df1cf11f7faacb88af6a4342fae675e0de1e3d8b288f04b766925a763b74. 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/MXF601201016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50de4fd2eeb6ca6f2b6fc15c40623f1c4f13ea5e81315bad3e64a84a4decc943. 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/MXF601200998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155c81124a64fc5a33c6bc207ce6ddc553ebaa3ec90d7aa546c86df282c733e5. 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/MXF601201000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffe296ad84faa653b0dbcea01b6ffea77236f561017465c075f122ea0f39d35. 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/MXF601201019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5868f4304f7322f5eff8274652acfb1aad2eb2c25d8bd1daf50f147c5df9b4. 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/MXF601201001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d19d39416e208b9e359528aa83989d889adc048163e578549ecb97c2bf092bf. 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/MXF601201020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb227e5ebc09acaaa90b3ca0034e97183a4e44d951c7d9273bdc704da229912d. 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/MXF601201003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99366a2126305978f2f9b01d104668fa5e5327c30a52b8b713c004bc7f44d56e. 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/MXF601201022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7cf2bed9f882c7795d53df25bf1ef5a59e652f8f0b62a54b933a35a7847bf2. 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/MXF601201004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3c636df640fc646e15e6e632021b571d9790ac4ede54f50c6a251bb1ef1e8f. 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/MXF601201024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf966766308f51edf28c133414cc1b021861be8a588a2a43d7edb3992d2dc8fe3. 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/MXF601201027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d042c84b8637783a93bb8e710026b6e381334f5adefd7c8938ef28333712b4. 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/MXF601201009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ff58aa1d0dada0553b6c4ca91ca8f5ed3a3285385b940dc68e11b6a6db3ee5. 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/MXF601201011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7aae749cb3cd57a6305aa1ed89c448d013686fd1e959a095e526525d0eed55. 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/MXF601201031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7393cbeaa6298cee07616d7f45f851752c4b481cbddbd21f92359c4372a9f9af. 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/MXF601201014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a153c66009639383ae0644e0de73ce30a8a2aca44aaad2c83855e5417cabf7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/MXF601201033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34eb43f070482054137d66e7e70cf0250922867d26f7c1fe5d8414b5f196f858. 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/MXF601201015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d416f974e7b32b3ff17fe83983731ee03f9fbc27f1b91a962e5dc95f39b397d. 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/FRZ511500189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21613cdb4c318181d98b614384ac1b48ca21e72df00c652261b9561d1fb6535c. 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/FRZ511500193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395372e0418c17f47ce1cd63ee0ef0f27e808f2008cfb935bc25c8e95de6fe21. 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/FRZ511500201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36074c917be3d6cc2cab0188cf21ceea47803db3fc6167b8082058853b2f3a3. 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/FRZ511000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a78a187efdf4c7318b3a163d40e777ee1f4c2d5b3d4d5e0f54c12ebab427c7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FRZ519600309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5dfacf70805cd1d0796c6be9cc3028d128b9b0fe9b312df39698ef0fa463b7c. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FRZ519500118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e11ac75b9e82fb8dcc7c4b57eccb271f173cc610e82479fe951f9ad591b712. 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/FRZ519700088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe649da59ecd87e6c95ae7ed38f4133ab7f8550135237e073532a0bd9b85e764. 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/FRZ519800237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2711ba3ca2447b6ae815f5ced35d2be2be6a3fae67bafd2a67da6d976fa4bf5e. 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/FRZ519800366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34959d377da320f22cf2b760ea7d9db5ba3b280569809f386215940dbc8d02a6. 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/FRZ511000211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114032eadca0b59418ddf2e209175dcdc583d579dff1237186ae1fa45b9abfb5. 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/FRZ519900076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e87486839d0b77cd45b70b8ab1a0610da09402e046bda2bb29cb2a5333a1ee4. 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/FRZ519900212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410d23df929f5d82d4c1dd62967150b6a18ba2f482fcc62b2245113621a25e2f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRZ510500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30059992ab84dee73878d31e00484221ad5380645ae524698932720933c9d51d. 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/FRZ511200214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418df178ea7679b057380ea2190b922b0c4bb6be3f0f2b614516869c68e17bbb. 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/FRZ510200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb023c10195a2959841225a00ac376c98f86b676827c2493d2bf250196da7d3fa. 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/FRZ510500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d28d8d6f601c9f511c10524db1f14be259a1abc60734974a8383e84bdeb309. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/FRZ510500034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30c98b1764c44ae9561aad2f8567bec987dc5996a0905dcdb1148755c6dd839. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FRZ518900023.