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 0x8696949f74b078f0e059c119eabcf14e023725d34b2f64d9dee47674e012df40. 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/875d0dd9-4b74-44fa-8dda-5d81b49142c0.json and https://artists.proofprofile.net/proofs/artist/875d0dd9-4b74-44fa-8dda-5d81b49142c0.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 0x2f8223e93e47274f6a8bb9eb14bfe93606f9047ad4985cd88efdda89598569e0. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ARF108400153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d60a42afd69c7388e522c4d6dcf78c4ddaf6665c67225ee76f6baa710b0ab5. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/ARF108800142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed35e5cffa5bb4f0de70527224a39b51cb1f2a36ac5ba32327a256fe27ce706. 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/ARF109300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401d69ab228b9a09a79d38a61848742a810711660783cf08917ce6cd07610979. 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/ARF101000566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d41457c85708f43af794f8cac0e892923978714464fc58c779e8347fc99107. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ARF101000562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0796fbe883f55d28b0c1b6e2c2f75e7bccacd3f899914abbf2ac7da76fd513. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/ARF101000563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c47c69cd419190cc673704600ba6015a904b06d962f8ff9e1da08a71b81f293. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ARF109900161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5fb734119accddfc0ee7730e0aab9fb5690750656f0991675ce02504ce182e. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/ARF109900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e9ee9a9054cc0d182967321c559996f165b76ee571bdcd367860bff076996d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ARF109900170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a539dc675a5540962656196849b0774534666044d138c430d04afb90e37556d. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/ARF030600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42e08f90029edf663a946436a2cc07d3ecd3ecf3bf9df952b2df40cb1b1afbd2. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/ARF030600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10725c53d680059c394f38067ae30e3963c30b8238246b7145097de77817992. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ARFSB0800767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67a4f87e4ffb225a8f9d26d2ddaeb045dfaec7a68b1e706f4d811ebb7507bb2f. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ARFSB0800777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c47c69cd419190cc673704600ba6015a904b06d962f8ff9e1da08a71b81f293. 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/ARF109900161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5fb734119accddfc0ee7730e0aab9fb5690750656f0991675ce02504ce182e. 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/ARF109900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e63de9337cc5b7b3f543a779b7fee88e8e5fec01ad70f7f7dd86545a64ae71. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/ARF109900162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82d41457c85708f43af794f8cac0e892923978714464fc58c779e8347fc99107. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/ARF101000562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa697a53fa7cbc884b6f99a0e6955ce7bb69a413a70c2789eaeeeadb290236228. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ARF101000569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0796fbe883f55d28b0c1b6e2c2f75e7bccacd3f899914abbf2ac7da76fd513. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/ARF101000563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793498947248a0aaff7bce20640876dde70c76436c3d976696d76476264fba92. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ARF109902551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89751936fe0d51f736c1f0a7bc5723d242500c0ffee8d31c0a3c3033f6222d66. 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/ARF109902550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f643c3a86ec09547604be4356baed49a23c025ede03b607312ece620806b36. 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/ARF109902553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf637b7aebc51d4f29622700e3faf592e32e46d8dc4d51e44ffa718849615a335. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/ARF101000568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31021a839b1787d898aa9227d5a4aa18e1225814c81a855ed05c756bcd697f1. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/ARF101000567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48a1c8d9330261674a78a11e93da3b388437d7a1607ac45cbda2f500c536cfb. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/ARF030600010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401d69ab228b9a09a79d38a61848742a810711660783cf08917ce6cd07610979. 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/ARF101000566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd322f467742e395484f8766fcbf2085878ae37effc4127ec4dcbb19bbd60cb7d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ARF101000565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73a54daf62269543427433ad6d25a27eb06efed1bdebd5dcc1bc8d0f27e833c. 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/ARF101000564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f9152dbf121356734783b7fb5efea1fce21c8d7abfa72079d7d3ec35ea538df. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/ARF030600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d7df7107d3d2805c47994a6515ea811e38cfa96854b30f04fe8c274d872986. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/ARF101000561.
Enganchados: 20 Exitos Originales Los Palmareños
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f1edc100361768888030eff203f99fc33100f2d59f3da91a6c3a4986e14fb9. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/ARF101000559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbeac3ee31f9fd58ddf4c2bd747fc7fc90be89b61a5c245eb8406655c7bab1d. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/ARF101000721.