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 0x990977bd9810020525536d5974d70099c7327e879500ab271f32d55fb6dd6cfe. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d84f42c-862e-466f-862f-e78217ebda13.json and https://artists.proofprofile.net/proofs/artist/1d84f42c-862e-466f-862f-e78217ebda13.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 0xb66b217468d1314cf45c5f35e5bb577a379fc784d916b9391034f7132724a5f7. 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/QZSYP2382289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a51674c5ae1300bf4d1a52c8396838b04057795b60f1a50787a938c6bdcbc6e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMHK2211818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0623d6ed849c9a17372ae28108cca93443bc51d15ab9f7645b39fd4306357815. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZS7J2379575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3900f94d9eae7f9ce42f6a38123a9d0b393d7fb68523516c1ab51695455335b. 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/QZS7J2263340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d30eca5bb18929b1d2d34b958e239cbdb2f6ba3dc85626f5bc0c0b2af69d999. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZS7J2360522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9c6c6f88f11c3fc9d9e936877594491fe17938df320bc248e74fce03c5664c3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZS7J2322264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c1be5e1931192b86a18cae77c8a7dbfd9ce1a25afe77891fe87d67b12adf357. 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/QZS7J2327401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f333eac0e18a3ba4a72422de1053dc4c3a98828f40af83458d5ea88bcf7d9a8. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZS7J2369408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861275a46709c267b01bd5272f40026aef357a1d7d21fcfe8ade1432623fe7ec. 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/QZS7J2350422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4ab71b162e04f1421dd8f8bb0819a14b12f7ee5af8e22ca7eae2b92b219098. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/QZS7J2370612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f000e9f82a30b78f65f93757408ebb2867e17a5c1e85cabc33a3a643aaf7510. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS7J2303915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f2d4420eea3b305fa04962f2fef5b559fd024bb09c3b12ae9c654d737a91a2. 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/QZMHP2052623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3dd4e54eb6758db343f4d48bebfc2d857c50184aa5e859cfdbe6a14edab2c79. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMHP2028196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6662f428a6984ea38c1a882da8d07e77d3acb8dc5f546fd8fb699970c0cad2f0. 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/QZMHL2002609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e034839a2f925b8c600980efd8136d35840751582fa936f99972ea9c03f9e3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMHN2018621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579b416a29f4b9c4eb989fefebf73b777c2d5be04bca9e65ac7501a6089c7ec7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMHL2036601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd12e27af030297871c57003e9ce243610d04892deb48cee3b222f4d10f7cfc. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMHL2055651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0636ea639e7c160950f3bfc703bb92d1dc6df6fec11f0df45e10dea5a199366. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZMHN2063630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x846c066e3a5c1305f55c1ed9ddcb2de95b79b4d3c51caf73ffe9fbe150a251ed. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T10:31:13Z), 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/QZMHP2047656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff925ed6d6b37cfdc5ab2b4468cad97cfa11f466941078356f6f75f20d0a9c7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZS7J2365701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80aac7bb1a300f14f872d0b4beac821f0455dd35dbfe1644b631f87056f95b2f. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZS7J2382104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623b1b2f5789451003ae3beaffc9c4c287ab67133301be82e0d0bfe6fa2476ad. 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/QZS7J2333168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e91d41a85bb165239be8ef11a6bdfd75c1f2070fb832935df0df3fcb169100. 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/QZS7J2355220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930c3603b85f356f451d9e7a65d958743ad50f89996a471b73a2887bcf2c6242. 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/QZS7J2393922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8387a75aa9f5006778edbc33feb08783b6b57d039bf6b4d6c32faf960ed6a29. 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/QZS7J2323201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab94e9310e2ac000e2161db9175242efc6131b18a9a62e5442a142a3ee7aa87a. 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/QZQAY2315162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad834610d7f7f875e9e6be733940b87a5d79faada19dcc4fd8b8d56ccc241158. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZQAY2357402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa695a6c4ad11032c25675e556407d05a6f7ee021743dd1c9eb5ef93897f4eb56. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZQAY2367981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x833fd2707fe09e280e36e247288f8694e14a2da2531e52a69e07f8f3d4e249a7. 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/QZTL92346166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ff68e5ece077d302f40f31f0cb4a2b66ac572627ed2d71339707bdfae36548. 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/QZSYP2209434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fe869ab600764843ea9ed5bc97b2a55ad4c99a2c5cbbb2a656f14fd906cea1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZSYP2264494.
the only song i ever drop that will sound like this
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1863674a3fdbded9103e11764b053c1e872a156e3ecf48358e50fd32bdde452. 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/QZS632206123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3900f94d9eae7f9ce42f6a38123a9d0b393d7fb68523516c1ab51695455335b. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZS7J2263340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072e5abd26cabb8600eccb237e22101103fc3ab92680229c980251be82bde318. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QM42K2150051.