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 0x0336e2d4d3bc905d66bd36f5de35f8bec9b5d28a3e893705adbb7f7ff2b547ab. 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/df92153a-6d4e-4fbc-8c94-7f8a5e92ba4c.json and https://artists.proofprofile.net/proofs/artist/df92153a-6d4e-4fbc-8c94-7f8a5e92ba4c.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 0x27af4fcd40682b686e55d3e126918fc0040c9a2c7b583e2a1b7b2d870cde76ca. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZNWT2056857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157e719b5b8e8c8ef1099bcc576d10a2fc4e307da77aa5addbccc1859a2ebb2f. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZNWT2056860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afeb27d2ba29402ac3491d6b5605ee2f57223bfee986be5c4e1d1a0b42b25d7. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZNWT2056862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723620716baf13ae085db81e7ccfd69224b73842a6a28fb64b9120e4e53eb22b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZNWZ2047597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8820881973526e15c54902827b94d2bab01c822c913bf0c622d9a1daf91508. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFZ22160405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4936b94bd8d9171fb5373459e966f53569c4382e0e16aaa73f39631619057abf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZFZ22160409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0681b364aa0e2e4d0b4cda906744f88252f406a4db9b09623860b33df978618. 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/QZES82133018.
SCRAPING THE BARREL Part II: Bricked Windows
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe466eed5c6e36041b1169c09a3f1ff60ad379a407b3c88f3b59131e9622c15a6. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QMDA72151187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7975f7bb0ce5283210db934e93b038ffe218e804a2a84148a8a2918d7e986375. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZNWW2142097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x230f2432b36f8f0379413d83dfb3dda9fc07b10a3beae75417a310bbd69c1066. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QM4TX2217713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a39c115f299bde0d527138e3276783e7ddb5389d03ebf2060a4b8cdd553d8c6. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZHN72204101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419bbede1118367974fe638479b168148d866994d6272f3c89542ca35d748b77. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6MZ2221123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18b05b88b3cfc553d910ccd85c913c5ee1da800732f8047c6d76c84f28a7eb50. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/QZK6K2239689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0dc589ea491fa919175e135fd0a79a57d2da1083265ef94d283acbc17b2883. 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/QZK6K2239690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30a1653d532c10ac8b8a5db997ff403b2a0756a004b19d59af63b5f9f029134. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QMDA62219947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c706cab4b26e22b210451c9062a27bfbe585fc8a6af907c305c3ade6e55fde. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/QZPLR2216471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107053e970af4930d73a5c2f1b3bc8aabfcbdf0429bc9ca4ee63f2b61ff670a2. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/QMDA62262182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa599840f2232d7228808f3a61936799c0b5d0c71cad90b7c316d8cfab097960a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZFYZ2337264.
SCRAPING THE BARREL Part III+IV: Eternal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feba18a73a90b30fd4edebe1361953edffdca160991d3bb80f9c72f2e6dd18d. 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/QZDA42429110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747883540d9fd795e06e95b30826814630a3f1bfbc78e7f7e4aca9c4873ddb74. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/QZZ7P2414890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c48bb8605798ecbb1229ea7cd4a713fadd9bc8fd2ce6680a4d336212e7305f. 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/QZZ7P2415836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671874d800426080a20bbe1de18b6d31bc76f075c9b03e674963068c790d8166. 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/QZTAX2547156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bffbd86f0a1b3d9e9269ca946e9e42e0d00dd0fdfe07935a3edd34abec89e58. 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/QZTAX2547166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f7bee130a12606ebe1c0320789a5c5f0c06573daba900a248e2e06c35fa30c. 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/TLREW2222234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dffda4457fb41a5c859370027d6b3de34f60cd786465b67a8523dcc35f4a4da. 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/QMDA72258814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24930890254881f101d19596f48e39e056d1e6523442873a46114b4f35f5fdd. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TLREW2220108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe67fafc0be8c1ba98183702d1ed4b59130f507505b1141f9c2cdb1262371be04. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/QZNWT2293618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad5673e398eadff9643c62db437e873d198049efdefae09e0a125956a8acde01. 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/QZNWT2293619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x320c14a2fb75c495abfbc7e238fdd4913a730c5157990c96f9f80323735b6fcc. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/QZRP52433858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e925509bb10bf258f549fa85083b0b5d471120bb4060d84a792c4ddf514608f. 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/QZTAS2451781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a7d68923c3cf9b38c2044dc79e2c3e7543558418f9a42c6674dcc5a78ba181. 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/QZWFG2328804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d82c7b706c499503c595636d955e1ffb9340628e7a33ade74bbe6d9da2122a7. 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/QZMHN2218872.