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 0xbb847b9724ae2a6da5f0f6d351bf4ac8a871b7c08a561a401a954e23a2d46c4a. 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/0c740286-6591-4d38-a9c0-57557bf181b4.json and https://artists.proofprofile.net/proofs/artist/0c740286-6591-4d38-a9c0-57557bf181b4.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 0xf13c0d32731d6a3a3d4c5994b17058d72f4306b2def93cbe83fa0ca6a864f974. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:22:26Z), 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/USHM81242882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27d3d86f63ef772b1bededee703df5ef8fbb5008e9cb16041c16d67b2966465. 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/USHM81242886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd314c5a19a080cf67ba4421c7d978b652e194ff0619eb5708d0759269bb8cba4. 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/USHM81242887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41de7c823cd5f6c6e21ad621df7d67e01955db7185c1c2c0dec82952f261db3. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USHM81242891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2032f82d17411a03688e42172fdacf8a6679ae2e7e5c62964f8b76c559c3a3bb. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGH1410091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb043304e57f4f6eebc2dcbca72f57e75efda670d57f808cd3982768608e789a1. 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/USCGH1410094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63122f111d86cee2f743695c527b168afc45d7bf1e82d5a86512fe61b73a59a8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCGH1410081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de792a1e33cca9bc29bc0339ed9446fdf625235f2150e59a5eefb9362df2f02. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:26:50Z), 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/USCGH1410085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c9e7558fab1fd19da40d6fbaa26e4c2a50ac2d908c7887a2854ff3d98c4a43. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USHM21436942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c0eded25e93cf8d47906b729943126e20a79f624cb9cde134cc9c3070e31987. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/USHM21423748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50317e47322ae3e9216f2e57e1964fe38ff321f252023686464520a6b8891245. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USHM21423749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bc41d2ec4e3a9ac19657ade0f833ee2345ecbfcfac40548041fe3551f607bb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21423750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c29e61e1ebc64ab223b28ca03ffcd9cdcb24e74365173d35c35a923eedf732. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM21423752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa345af203d1f0bb2376ae979cf46b87a7a1884c8f5041084911dedefaf325cf2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USHM21423754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247ad4696667f017964cfca4c2b05a09fac7405395483efe63e82eb50dc5d032. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/USHM21421750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f752df7af67435bb9bd978b5ed1eec8335bd176d8b8a7cc6508bf1a88177cc8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM21421754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25b02eecf3dfa3bd7a762f87fd3f646fc85c294e247b977c7f741797873b16f. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USHM91443553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8406d9f26a54feae24fc1d5fced0ecba9cfacd4aa84a4d25c48eb512f320f3cb. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH1527266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297011f1b5b58879f58f147a82f0ee5f39c12fb576343cf0432cb70965851849. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/USCGH1525430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673f21c547dd0c37f5492da881fadcadfd62075eea5c5e5ede65d0bc4696055d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGH1525440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45287f278b2f0e3fb1064f4aa770eed404ccf95e6c412a0ac8486847494ac305. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USCGH1525441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63237994dea0c96eaa8c34bf0b587601b76135ea6170c125387da4753f6b9470. 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/USCGJ1595622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa82ed3343ddd33ce1316de4d857f682b916ed1d7ba37e5778ca08780f1032a4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ1595623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc2c9cf67e627a18ecbe9d64c3155fa4e1406fdd5420d650a7c5927eb69f08d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USCGJ1595624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8f93f176e5bb7ec8f4e19a54b9c7362ef07f5fc3f26cd2cb7749aff3042594. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCGJ1595625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64f15396d62be5c43d3d8da8518bebcf129bb0f659c738054d8c40d120cf1c0. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCGJ1595627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2543ec547b31398f86ec3ad4a2bf8e3063c373537b4b94f82dd742f4e822da8. 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/USCGJ1595634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f3ee592004d6ede084f53196f479827b0603da71bb952668b79a63abc2f8a3d. 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/USDY41503399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4825010bcb956cfcd25f7a8245aa3428e36849ca599bac70ecfb666e68d7a51c. 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/USDY41503400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07045a7f5513f2be3af3cb5fb95751bd35550d4b29e442461c27516d2f891846. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/USDY41503404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8548c04f252885c442ae47391e0e592ff9044105704a5eb1ff8e09254ba37c2. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USDY41503406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137265737b93a6e5babe59f3ac99ef22805aed265907bc5a3847ab2757994b82. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USDY41503407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a4beb0963323cff7f4ef91f441bdbcd84246814fc12730e57c92435e87e4fc. 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/USDY41503408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c4edfd3b7c63751603027d74483e6d9bd84ff36b55737f426d558bf75ded9ef. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM91613691.
Ranchos Potosinos Desde Contrayerba (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d08788721736f0c1564ba2a4046fc812932a0341e9e0551375ab4616d0162d. 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/USHM81415411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4a774bc503c622d70cc82a8858b9fa56dec618a7879b0889e3b763e2bf960c. 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/USHM81415419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbc81b2e518349713853c13daa93ab55fd846f27290a6c01a55f0dd3cfc8efd2. 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/USHM81415421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cb4966ad9b02abfaddc14ac69faa8daa56ab832ac1b9aad9415bc9ed849df4. 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/USHM81415425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9bf7df536fc809283256d29ae5731da9d9d5b27f6dc2d307dd9be099d915a4. 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/USHM81415429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9861aa43c70cfb62d995faede6ebe90ef8f9ff7ac1b9510b571e5d61f26ba546. 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/USHM81415431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x641437d309379552237debaceaf2385e5378034c9ffffc4d8ae829df796ee72f. 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/USHM81415433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb93abaac6e46943b74995e5e3fe8461215c44b374c6fddb3ec8a3cd9eace9a9. 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/USCGJ1506880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7f57e1590e8ca5392b8fc21cde1031da2562c1c1aac854b04b00f5d3f71223d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM81415415.
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 0x08316116cb106be8f71a34e2c65895d50ac9f1dba55923f895a5606386c12adf. 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/USHM81415423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a21ac3514e1a870f79949a1acea6883fe0408b7b5491a9e39d595597e1c088b. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHM81415427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabadfbb6ba904d84218a27dd046ad404d4ebf2d81c836de21276bb3cd2809fa4. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USCGJ1506878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503a31ecf098496d3a579f2c0fd8dc962846f7ea7e2f7709b6d90dcbd11ac7a5. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USCGH2296534.