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 0xf2f5707e82efb8cdd08a7991dccb48e44f4a5100185a32b1c3d88ca5094c5756. 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/e88c9fbb-e147-468a-aea2-3da8c7273085.json and https://artists.proofprofile.net/proofs/artist/e88c9fbb-e147-468a-aea2-3da8c7273085.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 0xb81594dd118e324e452897a4233858267474f7e932c87489640bbbec8b17095d. 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/DEH741910830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0023a7d62b9695d5036bc4722174c907f4c8d1e0ac212368712f97911ccf258. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEH742165022.
Thats The Way (I Think About You) [Edit]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67affd473d5153e0ae8a54fdc0bf925b496f1c8eeff268727da68c0d7ce41622. 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/GX3GJ2200036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffa4f541be17bb0e2ed500e7ac8e21001d0916591a688131076997da1c9eb0f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/ZAG8M2300999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaaa511fcde31f1d569122bdd1e1e2f8a858bf340dbb9792075b5bd7420a89ec. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:39:18Z), 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/DE1JN2385964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e9bfbc77c4f0394087216a2fca3a1b59949ea4b23f85fc026ad93b7ca9ff54. 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/DEY472472151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb37408d3e70ba13a2a32587c156a8b1509221221435fdd51d276b92245073a. 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/DEY472472154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd09e23b29cf6a0961edfe28e8af7fc213bab113ad2f5ef40c3fc7785f7ffa9f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ZAY592400189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af6c773b64cd56492eac91ea5dc8d85ce6e039a85502771bf353dbc3838ee18. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ZAY592400190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x574a57c9ae58541f039f371e6fbe2fbb5bf177864bd6560d2cde801b630f0329. 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/ZAY592400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa14ae09820f03305f59d7acc7a70ce64bf6de3096ce2b4563384062ce6b9c32f. 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/ZAY592400194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958c53494a93cc32c7cf160ca6c21e059e68f07e7415085808bb781c2922a5d6. 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/ZAY592400195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cf40aac710585737d46d271d02c97c5a290b4f5f43e94ace3e1844789276dd0. Chain 2 (Bitcoin): anchored in block 958850 (2026-07-20T08:32:30Z), 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/ZAY592400196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc171ad3d3ad8ee5cd7aa9b788b8ea0368f33c5a385c82f13217f679efe0dd781. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ZAY592400197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922e96983453ed6730f167de048c5711c558c1f8cb30667dee286dfc0b30bec3. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/ZAY592400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb271beceb34619dcabf9e51239709267cf6181408991c6e0869ef84d2c2052a. 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/ZAY592400199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b2bbd6313a70cb658d810dfc70ef3b177309a52403eb973e74ef45c7e1e418. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:49:19Z), 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/ZAY592400200.
Accept The Changes (Pablo Bolivar Remake)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53253f49741be389279fbe927cd70b198d87a3e56ca05759d4ca239860d3ea3. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/GBKQU2518353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd187c11a7364130ba231ee45139b19638c28dd871054ec1382be158c3a62a8dc. 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/GBKQU2518357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d29fa7c87d3bf48893538ac5900148f6eff5d0430f022a9a0d4161a1652ef61. 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/ZA56E2201403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2852aa3582e85188edd9bf672062b2413c20e234277f36843943348be612ab. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/ZA58Q1600265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b21ceb51c38e150d76c924007731e40bbf4f3f05c2dc70c9e9f87cea5e6a437. 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/ZA9ED1800002.