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 0x44ddd59970d5401a9ba998790e4f97b18abc414c7d39851f960a0e7bdb443fbd. 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/ac97c26f-5097-4d5f-844c-cd07c59850b2.json and https://artists.proofprofile.net/proofs/artist/ac97c26f-5097-4d5f-844c-cd07c59850b2.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 0x76bd20ec32e85e8e277003593e076fd7e82e4ab7a75966edf3543be990d4bca1. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/UKACT2132149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c4ebdab8cfdcf5a75dbe1cf7a8d7bd799d11d44344a94a32c71f47eb6957ee. 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/US83Z2466755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4105943901022b3c0fa1f748dac6b3eee0c2914786e567a38b7557d0a6c5b7. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/US83Z2497952.
Night Vibrations - ELECGROUND & VegaZ SL Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257d97ce1e9078a45338dbd6fbb3ebcf01f2fff8f18195c256192883b92822be. 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/US83Z2497953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d23492ed599933c592a2c28fb60da3ad8a6f7c6156176438310f1d6627c5f58. 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/US83Z2424405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf9550fd8715e40e4a7c0fded180b00bd47432bdbb0ab6b5096aa2de99f9128. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/US83Z2424406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933cb2b7f2a5a978856bf16e22fa37c41e3729431e229dc347c4310d3700a5a5. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/US83Z2501789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bcd07fae68fb313f510425eb3a263b39dc79288ee1704b3426e1f5ebbddb12. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/US83Z2501790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda7fe7c34cf33a0cf9946b22cf011b8b6ed2b6598f7156623750b98c182f9f1. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/US83Z2501791.
Yoma (VoidShift & Noise Generation Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ec6b6a1bf694c09aa90ee15120889c9fe1aa69ca7a7548e84f5d53b051b349. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/US83Z2524156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f8871bb4d7b1db9d493145956920b75b837a98429c972a2114a5fdefc7359a. 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/US83Z2516722.
Monolaya - Casnik & Gonzalo Cotroneo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e550e5a7e5cc79837c5a37d295ae5342cbf8d5eee954c92a3dad1896a766309. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/US83Z2516723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4da1264ad2f878cf28a1f962d00121892ac38f638b1a1ff934d1220a56ec4f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US83Z2523955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de6bb684905b77d5a1cdf281df53477d52e32ad12d399e1eab3d9e8367c943b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US83Z2523957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd31c9d07ee65d8fd93888bc816895f938854a30edfea3be52253e62c6394513. 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/US83Z2528332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2973d2bb21f6aa89ceae89a79652e769e789b3daa625f5097000c87f149a3d0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US83Z2535402.
A Change of Scenery / Singularity / Dr. Petropaul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab7f030294fb36b2afca771c9ac0149da772d2376d3807c39fd5f1933f20402. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/US83Z2537335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb097352a31187e857ae825a2b2d3c2a9e16ed5b510f2f3865908d439f58f19b3. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/US83Z2537336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf236b5c8028bebe40172bac07ca1f25cb036ed35e0d3a9b7c8c5cd23d885010. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/US83Z2546269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf534e87d92bff157b83e74d6224325ed84885d5aa44a82d9d2a066ad97b2397f. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/US83Z2553604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b01e248f5dccb46113bcb0171479bf4c53f95a936da8995e332c4f9e93efd8. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/US83Z2557041.
Cloudy (Gonzalo Cotroneo & Casnik Remix)
Rocking on a Ship (Incl. B.I.G (AR) / Gonzalo Cotroneo & Casnik Remixes)