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 0xae90ca9dd364a8bf1d99f3902afd5040584322b2472b5fdb355afac49a917849. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96157a75-5850-4e55-9197-e3ab624536d5.json and https://artists.proofprofile.net/proofs/artist/96157a75-5850-4e55-9197-e3ab624536d5.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 0x3bf909fd3f9859f5390dadec2395ba6f54223476277c38d89ff69bd061d04961. 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/AR0ME0800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad248e6b6b645a3c1e5e71f8f0b5f57f38bfa19222a8e6a9c01c7e2bf808fc7. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:27:15Z), 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/AR0ME0800007.
Selección Latinoamericanos ( El Humahuaqueño / La Gota Fría / Luna de Tartagal / Candombe para José)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c465137588034b7851c665976bf041f74d1f0e141fa4dbbbadc79102bb609. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AR0ME0800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9175ef70b8a16297898d47eff700f6330d9b0955f6e38d38258eb55bbf429b0a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/AR0ME1000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf920c972a8608932535da0219234393378300fd1307ee43886feac12b86a1837. 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/AR0ME1000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55a358fba74aaece0ea9ec25e47eb6d5d1230cba6784912560270969918866aa. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/AR0ME1000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e3a302062b7a6035b2d036add9cb137a7dc0f7b3a7eb1f3b7795c0fcf2af2d. 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/AR0ME1000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99fef1832fa95ec4e0f98c0cfd33844d4cd7136ae40afe6be6c315f5d778d31. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/AR0ME1000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64944dde4fff053edde403f4dd00bd536830d43f4ed07c231a46555eec1482fb. 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/AR0ME1000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0343849cfada4dfa12f516161d028c01b1ad9b4367b54311f38350095c0c58. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/AR0ME1200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433da72d074747ab1f019b0bc47c8ac2ed0ce04945ab5911809a92c7c7d92b5b. 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/AR0ME1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7ae4b3e392e87eb963d55f7168f867de1e37dead9e055a80edf982096b0ffa. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AR0ME1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5a5972a78e09d1c5372f184eb3894e4dfce984164aaa3cf67d58837bc693ef. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/AR0ME1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25d60beda8f820f3593ede1387f3a1d84e02a00113fc7266d448449c27047aaf. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/AR0ME1200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c7791bdca536983e18a64d16767b9c58bd71db4e97b31354bab4cb204b1201. 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/AR0ME1500003.
La Chaca del Amor (feat. Chaqueño Palavecino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7015cfc6abe52e1ad696730851fde458ceedcd3f66202228e3639e059673b62f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:12:00Z), 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/AR0ME1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6759d211fb7c282c300eb0970d13c70c60b09f165ecd41ed16436e224a810be. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/AR0ME1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bc75822623e6a92f4af71860103063a01f92bba3f65937ad40c5bc40369664. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/AR0ME1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb79ef05052a3ba700c02f8b727e28947488bc8fb422ebd61493692afc97710e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AR0ME1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff064b9806e473d288db1d2da705985c74e76794c5ab1836dbdee958bbf35f41. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:58:35Z), 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/AR0ME1500010.
Serenatas Románticas (Que Pasa Entre los Dos / Serenata del 900 / Nada Tengo de Ti)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b73f3ce34baf68cce64926ba0903dd3e1b261ebce357750605f33a91f3c9aa. 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/AR0ME1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811d18ca223e6cb1c65da4c361bdc64f87066134f3a1adb36c04cd5ad861942a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/AR0ME1500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5964bdae9421c9d640e8e91b42e9bfff5c7f0d19022b7e036a569a6b399ce3. 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/AR0ME1500014.
Bagualeros de la Luna (Canto Guitarrero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582c30f6f8af041b7f25bb15743afe514dda3e6b49822200b6297053ba6965fb. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/AR0ME1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4aab3d64bed4eff9a650b35beee73f1e4f1e5ff8c9fad98050668075073732a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:02:50Z), 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/AR0ME1900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbea19fa349e0a23d4aa0ed1f0dfba538ab89228b4e90a5598a568db6b515aa. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T16:58:47Z), 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/AR0ME1900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5184e2338ccefcbac7cc9caa40fc86b94697abd8df641d2a445ac14953b94881. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/AR0ME1900010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7737a48e58994e24065196d2823d88cf4c02531d28ddd03b563bf9465fc323c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/AR0ME2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b651dd99f9dbf99575d5f43028bf570ae7b9b6a7d50eb72191e66bc1aa90089. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/AR0ME2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07aa9186596a653953c1572c4af66b7a7a2ccaef7d43560a12517d16474c15f0. 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/USHM22203770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275d9dcf4512891293543bcd55886a77b8d583c1bc7672ec7a703138fc77d76e. 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/USDY42329655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777953a636cf43f5fb28214cad829b51e21cd5f3c520372c365eae9efef5b6f1. 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/USHM92525874.