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 0x973fa4e7943a6ee92e63f6d07754124508a1dc88603ff8e9b18006b09da5e8c4. 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/9fc0d8cd-88f4-44db-9472-ac02abf565b8.json and https://artists.proofprofile.net/proofs/artist/9fc0d8cd-88f4-44db-9472-ac02abf565b8.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 0x282b76f6f02815cb07512b5d34368c0a326fab2facbe72b5acaef7792276c7a7. 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/QZRD92202065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08059f7f403d7b4ef6feba44e54b6a26848f99b2980b147c41e14a648df05d70. 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/QZK6H2179388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f893754bdb48bc28b9f849023dc5bd220be2d91141a910634f67bab98a5388d. 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/QZK6H2179389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd716799e5aa7a7b4430876ff276f83e521d69f51ead4b0c00ef6dcca329bba94. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZK6H2179385.
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 0x97304c8065f27543a8b1f999bb41983d7190072ca2b2b519244846eec818922e. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZK6H2179386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd2ad23ec8baa52c648681db8054194a34194b649090224eab18d94f992fe61. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZK6H2179390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2f238fe8de578343ae49ef186c99b5cd00148b152bba9fdfd4fb29d7c28b7c. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZK6H2179391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224056b5a35b0b3192c9f386e1573e392e7b13aad263d606c35519b94292e85f. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZK6H2179392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3633a2fe304d2452ca540f9077f46bba0810f7a103b2f3e56733e00657d186c. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZK6H2179393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x023e4b43b8bbab136aa7a4bfc0a1a859bc2321280ba477496ce73424a0e2d15a. 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/QZQAY2477519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a3d6c54fbbaed2b7b644580fc499854c027dcd3afbe7ce0c0f64a9c5b16d38. 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/QZWFK2374479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f02d8b02d76d4d629b2a0d2eff75fbd4b3a98574666f9ae4804b7716bd5e2cd. 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/USAT22313334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e55a61bab8033e83bed98689b9947ddfbae84201adf1ff0571177ead8f72b44. 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/QZTBA2376552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5baea3502b576501bf5128200d7467002a886920c76c9a619b38b6d52ff0b0e7. 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/QZTAU2362968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e2bacd78ed2929ed0be445cb853c96706024177bffd46d57c34546b5cb645b. 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/QZNWU2341305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daccd7be4ab87aa8a56d2c442368f1f9cc0a0be10284116b22dbf2953a62626. 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/QZHN92355319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09923890ec38d56640f8b3b29a207ffb5b74b7c56e0e5dcea80c488dc5896c1. 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/QZTB22222470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x048fdf97cb8091fd09e5772e4bbfdcd70c180c0b74e56701ef1ac26f021ae44b. 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/USLUU2200599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2df24b98384eacff9ede1ee9a40f92220b597d8bfe49c94bcca10158ab2129. 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/QZK6P2287043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb990c18e9bdd4e16ea798f538cb80821c040a7ab8d898c8332bcb36bbaae2b57. 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/QZHN72205464.
375 CHOPPA GANG, OFFTHEWOP (FREE SHIESTY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83953f6455d51c2f4f61c6b7cb4d48f293632392ea3a3a109886c525b02447c. 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/QZPLR2188523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb662e1696083fd673368875e9118718bd1b7a1c88598df519c93797ed212d3. 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/QZES72122759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b93e20975168463284aabb27d2cb7e2deceec3e335a4a2585f1240b396afd3. 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/QZMEQ2086925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec9e5a88ee40b079928dc86aff687735af66e18468ee93bd24f0e4375df00f8. 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/USLUU2301697.
Wrong One (GloRilla, Gloss Up, Slimeroni feat. K Carbon, Aleza, Tay Keith)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830d1e2232286f69861f18dcd77bc84a1a5caa55ab7d30a107cb5db6e4fbda49. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USUM72312951.
Eeny Meeny Miny Moe (feat. K Carbon, Aleza, and Slimeroni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1dbcd601d2fdd8667ee7aa5bb97566f5f95380cb284459afc45cab2f8b1192. 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/QZ4JX1761669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830d1e2232286f69861f18dcd77bc84a1a5caa55ab7d30a107cb5db6e4fbda49. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUM72312951.
Mention Me (feat. Slimeroni, Aleza, and K Carbon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3de2f11151eeb61b3e1d01e692b0a7b99a560e3032f37d59a9d18d4e77362f. 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/QZ4JX2361684.
25 Days of Christmas (feat. K Carbon, Slimeroni, and Aleza)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857c6e50ade6f65cbd222477237d59717994845031e954ce8a37455fce3375b4. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZ4JX1761645.