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 0x97d40640e46640afe118611ec22ffba370196b4fec334e39eea3782365e95bf5. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9e3ee03-f69a-407a-b987-8c0866577e9c.json and https://artists.proofprofile.net/proofs/artist/b9e3ee03-f69a-407a-b987-8c0866577e9c.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 0x07471f9686477e881411e2730d4be13ebf1ddabc5171e9cbc8057181788d2623. 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/NLCK42229205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30ee9f4f787dff63bdda92e51b9f8db8adb90bae50d73f69a3deddc6b379431. 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/NLCK42229206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bd9462fed19d063fd97551383d76d7ae650c53078789bf1ee39b60fb4465bd3. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/NLCK42229208.
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 0x25e32a1497b999aff7a49e0a74b3ad8e2f8124306fae5a3fa1d575aafe4bfa54. 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/GBFG92300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e38971d846d3cb0f8d8200f633cb55dce828afbbc4114fbb632d3644129387. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBFG92300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049dca64167ae508e1fef19b4b060cfa0d3a08b3876f7b116c3d273dfda97b09. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/GBFG92300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b6648223554cb06959bfcfb05bc1ec77cf1070d364566d12e5e19ad99c799c. 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/UKSVW2000164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951dda5ab94269ee3a6d515af350a906c1de6583da64efca5dc5f8b63878d318. 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/QM6N22422339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8dba2291aa844314b68379c794087539e482400ad01fd42ced130c5aea5529. 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/QM6N22422341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4708a84f2ce60afa3f13ae86d98ffefce8013e1ce3ea5985df870faa461c7d22. 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/QM6N22422344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4e29b37704664d2e57d0e5db4b5ec475f01b8770fd4cdcd4660d183ead53a2. 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/QM6N22422345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b51a1543a3332d0bda96df92ae6e28e69df4341fbf26f4c71aab7c2c8096455. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6N22422346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e1ab207591ca7dcf40fe24e74cee2e4c867ca55f7d69f3a4bf2f94d91a8220. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6N22422354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe89e2276539f2721f6087621d6819a739a9aa7f430eaf592201df256fd85f431. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/FR96X2186587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb876ada97b037267a36f64c35052193648367ff994a93b9c4fe4f798dd03705. 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/FR96X2186601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b10203d51d3869612f37b4fc767e2452d32de008a2f3a1827f9aecb775324f4. 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/FR96X2186606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17ea9c66e768c54b8f3d51fae6876ab97289c07098e530a1060c28e49222a06. 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/QMFME2355886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c9d772d856d7a2e749a8ea53d1dbf75c316b3e32a29def8b5b7da7f4db45ea. 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/QMFME2355887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb6283708bd7592c865a4f45e1ab4e239d770a72c4ee519da77f3e4927f0a52. 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/QMFME2355888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x189aab6fbf113b96310c0308ba702effe708b14e6b05437ec40c47d9d29a9128. 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/QMFME2355890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a74b7c05ec850da20674f9d00320c32d15c4cc605d96b3577bad86547ffe06b. 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/QZMHK2049576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bc82bc5c9aafcd7e181e6ba1a305882e4f9427c217bc16dc9e6aa0c3fe8374. 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/GBSXS2500025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fffe815b1e35b1c4168540912ce09997963c76526274acfc537e003251e7fe8. 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/QZS632577093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d1d840e73f54a381ee04cf90d99b8425f423033a424345807ef2f2fa1c4eb44. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZS642571737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2efc8e5a3b6e8392f952f8dc3ae41606df47854f42d3e1d8c8187ab00287427. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/QZS632505027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf153c6fe244394ece19a868080619739c98f6bda81707b13e61e716445ed21d3. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZMHL2574451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6419957f951bc99d94755c576b23778f17f3d0806deed20822354cbf14cf16. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRR642401729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596aff161320e3c5196be81d563a79329698d4be83b785dbd29113ec9e350858. 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/QZHN92558628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cb49e2ec4a6e80142bc88e6b94a782dfb1edc2185e62f57162419c8e87eb75. 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/QZNWX2575943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521d723baf6a179de82238013e6bb778631af680f26cdaf2820fa4eefea3b46f. 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/QZHNC2538046.
Brick By Brick - Lowkonic & Mr Fitz Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b6615728ba4923454ba6c38a9b261b8010d9515da32927ab1429fd4e6f7b37. 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/QZNWX2575944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcae3b0e0732fda07e78d467892aefbe17deaeac5a8568b7485773cdc197662b. 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/QZNWX2575946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9576b660ad069ea7193a3ec36529efbbc8893ec727ffb46bc2f6a6df6f18b1. 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/QZNWX2575948.
Jericho Skank feat. Blackout JA (Mista Trick Dub Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe80a26dcc97aef1998c59c48bc647a6ac484a7c30a2ff4194a42444c3b5676d5. 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/QZK6H2550037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2845b227d7fcf622f5e55763fd933223aabc634b7e6982449676961cd2df6235. 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/QZNWX2575949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4e883462fb9b12c94491d9a110088a6e5adeb662a496ea890c2f96042c59d7. 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/FXR732406404.