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 0x282ee37b6e31dbf6f53a9ea5239ef37bc2eea839d89a3b9346e08490598426ff. 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/54635909-a6fe-4cc8-95a6-a74bb108116a.json and https://artists.proofprofile.net/proofs/artist/54635909-a6fe-4cc8-95a6-a74bb108116a.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 0xe70d92987bf431c098b1bfdd47262689ed34270371b11bc8f72ff3626bdc9030. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QZWFJ2340795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b242607cf645bb00784cc356917fa6384570e9bebb27992fac7ef8cdc981bba. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/QZWFJ2340793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b05c095f62e3bada5c51579acdb06da4e2dc36a430fdab0c472129fdafde4a7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZWFJ2378173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958f803b4f9a1683c5fe6887d505ef5843116569b8cf7669eb9fdf8f1a10b7d0. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZWFJ2387909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec8632ac2236843e2236b8407ed467679e526b54eb4f1a6f965e710575dd493. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZWFK2389979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbd27dc6de57271b82c7932156c97c281394e5020394f5bc67715aa03745095b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZWFL2302754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cce24a8b4bea7560309b5d61177921afd788afe9480e8275f0bd6c921768ba4. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZWFL2302755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad244a40c6a1a7faefa21a79ddb33470e8ae1e443ebf413ee79d1001aba2828. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZWFL2358869.
#GV Xav x Jango x #329 Tizz x #RTD Young Stan x #VP YingYang (Cypher Freestyle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de2a6e04960e53ae80b64721d74648f9d44db7b58c0767b734e44ffd6bd6bb4. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QZWFQ2394448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231e646b1aa4e54cc9d97162d62ec348b17d6a519c92ecf4f3c11ae370e4abfb. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZWFR2328194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a8d1376ff74a00c5d9d6f44fdf1972519a5f68dfcd5a8cb926d722cdee400. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/QZWFR2327705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64a46273c38dfedbb85c50ca0713b3e50e4ef0d9757d319db9aaa5cd7ed5a6f. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZWFR2328196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fa1be60aa15e01ab9de5d59fbefb5eff0381fdf44aa03497b78a8335592537. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZWFR2328197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8a800ca23b60c08a7346f6f509d8cb8968d058a70e0860d6c4a74edbea7436. 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/QZK6Q2469667.
TCG LK x D3 x Aliz x Genna - Shot At My Mumzys
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc882c88ad9404eb350a29d67e3029ad183043753a9073ba0485d066e5634d0b5. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZK6H2422941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a83dc4f2220e12a709be9982ce3b69c0552c9fbaa857547045e5db5dd73ba3d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZK6H2430242.
#TCG #OneFive LK x Sq - Drilling Room Freestyle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1010774d86683592d08ab460912644cb713262fc405a4949552fe73a9840a334. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/QZK6H2423830.
#RTD x #800 Jugga x Zino x Yshurmda800 - No Hook
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f5e513ab153d4fd2bc5e2e7d67653292ebc24ee072d151487049d5290880155. 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/QZK6H2423831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5006690352a91a06168632bd008c10f5975aa4087b7ec78956586be9ac2f10. 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/QZK6H2460616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49f2a75921398f70463b8df8216051b56469dac4ca8cba1da91631f9d7a8350. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/QZK6H2449305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e477a9fd01605d122f889b46009ec478236d5c9e4d27816fc2994289ae06b1. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZK6H2449307.
#M12 Meany x #1500 Unruly - Manny 2 Brum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebd09c502b2b9345875a61fe1f6bf34666fdc1e5e35a73721703586d465bedc. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/QZK6H2476756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997b3fcfe6932f2e57b0cd2fcd99ea64618793db87a5c93171828d08cdc24b4c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6H2476168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b819b87d4a5fa7f9a2106f4e090975704c90529a655d5eb83f838c8b24e489d. 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/QZK6H2476173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cd6ea6a0d075b365d0a11ca93034046fd59ee50a087a215e533bf899427c26. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZK6H2481370.
#TCG Genna x Esskay x LV (Orginal Drilling Room)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00f4b71b8de59a1c239f3fba0d3cc2bf2f4947c257f09b521e3a9cce269e29f. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZK6H2476784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896df4c28e8dfbe859087fce94b92803be753a558f7feb737510ae024cede851. 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/QZK6G2404970.
#800 TWhizz x Km x Gsav x M1 x Yshmurda (Intro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eb1a2828bc4e0bcbdf64c4483d19bc9df656a4bd3363a6dd385faa3e820b97. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/QZK6G2400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be3aa8417fac18dc7d1c1d82631db910a28fa506f26a43338c0fcf3995b80bc. 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/TCAIK2453168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636e94352437d8d2cfd3464461aa5eab7259cc3c8f7525a9b299f97977d04687. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCAIM2495487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca9bee34f071862e09f13101841eee1d74550c204af4624606a43aa99656a47. 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/TCAIL2495541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f11df9c4cb6fe64fbd60f5ceaeacfbe1773704fccf989acd2a4ccf82815d2a. 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/TCAIL2496242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77d640a48ef863a61d72b20ff8ff568834c1e993a7ad7084204164888f776cf. 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/TCAJI2504441.