1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb7a35d6213d4c641f0d2948bda1eeea01494e606cc0cbce8133bb37d68bafd16. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66e4276c-9ae4-4f60-8c67-ac787d646438.json and https://artists.proofprofile.net/proofs/artist/66e4276c-9ae4-4f60-8c67-ac787d646438.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 → block OTSBitcoinBlock must exist at that height 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 0x532acde1d90e9576de7da41c6240c9c040abe6e233fd2f323e2d89d71b574a93. 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/QM6P41509810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01c7c330fc25c8092365c2a4b09c02cdd1ca1b55d9e517713330f858b51fa17. 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/QM6P41509811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2307f93f9546eb5065dd7bd2313cbda1db55198cceaf357a627a9327e708961d. 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/QM6P41509812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc077c224e9748cc1978bf62951aa1f14005bbdc81846f589f95dc9635b613af. 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/QM6P41509813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf137ec51d290cc1dfceb96d51a90331a3cdc2cdce34a4f28f291bf40f4687ab6. 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/QM6P41509814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6550d90f436d1cee04db64697c59ba33592177fae7b3122c9a221ae1998c2290. 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/QM6P41509815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a142dcdb90794827bc42bd94f1828212d42dcbaff209eb19690dc8cf212d13. 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/QM6P41509816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e172fa9335e52148fea5b894c6a6b1c56f68851e68e1777cae1204b618cd6d. 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/QM6P41509817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66712107b5ee0ff3437f5c5a1c445e1214bf9a664331db416f596c0a8641a3ca. 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/QM6P41509818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d40482bf1fb70bad804addb7ba2e32770e9af27da91ea0555475a556e6b283. 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/QM6P41509819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acacd8e663700ec3a1e1960bfdaa3760a5541105478b3007cef2b0a04c807f4. 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/QM6P41509820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9d19c3ea8506e57aaacf40b0cd6772d9e227ed4ce6a2a0a52200d15c7c52e3b. 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/QM6P41509821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c00dd7c430a25b230c4651bca791c66506790d12d9e4bed97c53cfd906fdfac. 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/QM6P41509822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adb42c7f4b8d05b30c57db45909b023141b80f99c5d8e599fd42cc9164d786b. 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/QM6P41509823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdec75ae888c1e49b9f0ecaaf4701b6d40ec96b14bd67bcf6717a2bf2bb85b942. 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/QM6P41509824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5df0a60fb90f534671c71a84590cbf0a71699466011f449de31c26f01bce6d0. 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/QM6P41509825.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8007126a0168b8affb0eaf2d17e00de7f6cd0d1d2291d79b50bb126ed920517. 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/QM6P41509826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f2479b5da747b81789a8105e4fbdc37593dafb36b90a9eeb7487922d0d98ed. 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/QM6P41509827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe108129560c10e223ede025907645eb50ef19727c46d005592dd9892850eae24. 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/QM6P41509828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf194b7bb578cd738783ff5feda1fc467cf1f9df8aeefa28ba0d198a7b0e0db0. 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/QM6P41509829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648e0ef63971d397fc0f3fd4a653ea05818e614044bcf642ae5c7bdc00c44a73. 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/QM6P41509830.