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 0x9f71cc4b424fa02d075e4db16b4dce13a37edb146fb2a5676dc1af8f8ee58056. 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/d442f6d4-2f01-479c-80af-0904ff96a911.json and https://artists.proofprofile.net/proofs/artist/d442f6d4-2f01-479c-80af-0904ff96a911.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 0xe18a249f3e7759b4453f090b97beade9bdd49bb38f07deac9dc7d677eb0d5d84. 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/GBP6T1900287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0606ecfb4eb12c21e5545c291daacddd812edee4ab4b05dfad8e8a87b56515c. 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/GBP6T1900288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca3b86d627477f392a4ccd69056ffb96d215edd5cefc6e4e0e5a4052e1a32a3. 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/GBP6T1900289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99dad6ded5a03e07f7462f6fe395089c3cd52a62186101952746d126eaa4edb. 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/GBP6T1900290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807780c425f46682b38bc9138df5358e41a3f39e9bb7af4b0d271cc8f649ee7c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBP6T1900292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8ba4f084934a510b9bde69d932339c629c072f33adb5e49f69a3d8225c29ac. 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/GBP6T1900297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08d336a06f51b42241c5f1da2d294c88393fb69699b4c5a0e9fd868328c3c824. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBP6T1900298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7d0d88cd89291f1095450b6d41cf01c4993697e95869fe223e73c087f59bd7. 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/GBP6T1900301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a22d20814818001da27241e408cc04bd3a4889c6890c19dc3063bc9144ca9ec. 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/GBP6T1900302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed236ab28919b4ace4a9abc3214890ec589274f532ae33a2916ccbda0c70a43. 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/GBP6T1900304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x994f08e2b00436858f248a9a098a996eaeb17be9475421fe69d205d35b322c22. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/GBP6T1900291.
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 0x56de4164e793acb2ce2c4d08e63053458f2ea3de36ce1d4b14f4d04a2ac87345. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBP6T1900293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6a5184a9ec43bb651f923a0ff609a25f3669e267e5fde4b336a94a55ca8aa6. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBP6T1900294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f3132d72063a42cb1faa4ca3961b969b08d46b9c20b22f16d0c038b0b4e58. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBP6T1900295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdac2c18804e5271c4589c52e9d7d88532f9c13baa1f6fb2129e9c582e86231e8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/GBP6T1900296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf25f4b7657e8e517d103331e7084bc63f29d021155249ac5c0235a568593df3. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GBP6T1900299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfddf9cf5b4a8fd001fb2bd5deacfa049823088014feac3ea233f9cd5c6e17cb6. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBP6T1900300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05fc324896608275d4d86c9a52a91541c1e1c1eabdd2c2f276f91056bbca793. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/GBP6T1900303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ddb7f2c4a6ed1bc0fbd8999d38c0bf83ef196549434ebab0e135f549258549. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBP6T1900305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x459b873ebdf841e42b1e0b11f3435d0757184f829c8ab9705a087032487bfc15. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/GBP6T1900306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabba141d38af29cc1dfe82205159150c9579c01afe627e662a096ea24fe710e3. 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/PLE351400015.
It's the Future Knocking - Alpha Steppa Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbf4f2b28b0824c7ef6d877119f17d35968740398410434c7900750c646caa3. 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/USQY51707003.
Letter Home Feat Madu Messenger - Alpha Steppa RMX
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebb7ab17516396106983b9f3482263196298cdf188fa234e2b0ef48031ea819. 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/FR92U1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260e92053d0e690aa1ad4791141ec90881cea8c1328b87e79fbc6470ef855a8a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBP6T2000314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9668ea322debb25fa9204376e3932c06d4e370a1fe7e96ae796b1832c5810b8a. 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/GBP6T2000345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a2baf3d154b2ee74767ca6513a6e2c51d62bbe8fb2a38857f9bc483ee6669f. 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/GBP6T2000346.
Urban Style - Alpha Steppa & Dub Dynasty Remix
Dub to Dub (High Tone Remixed Dub to Dub)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6803a9d58fd90675a64add8b0ec84c98eebf5ffe266df107f4df5202c516ddaf. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR92U1800100.
Urban Style - Alpha Steppa & Dub Dynasty Dub Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7ddfac19509bab79e762b517a872433c4e4ddf86de13898caecece3f1e1422. 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/FR92U1800190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d879436e2861731c341afbcebf905d0623f5d3034b90db0403a96f34c1e797f. 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/GBP6T2000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbd7f841a7d1d15518dae8ab9b4c8630976dc4e893c86f2b7c4a5148c3c1351. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/GBP6T1400111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98f482cd84408a1e419f4440f3a4adcfe01f41c0e618fbe1c642b69e4b7d081. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBP6T1400112.