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 0x29a42a495da7cbc7b69698896163d618a46466aff2fbf9c265a9be353e38d5db. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2499d1e-09fa-4f8f-adae-2d7c99232f7e.json and https://artists.proofprofile.net/proofs/artist/b2499d1e-09fa-4f8f-adae-2d7c99232f7e.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 0xdb247995621f19d8b62a925229a2abd1fdf09349438315453ac6a132f6fbcf9d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:07:33Z), 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/QZPLS2019969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e54936aa8f7a0235a5d5b461bc19c03f66b913f37af6769030820a06b0844d. 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/QZPLS2019970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc601933c30e6ea6e17c789c485aa11ec515c3f47ac902f1b69b38401c7548506. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZPLS2019968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc98e5f9b0e25dad2a732239cd25689037c16d9daf26d74c945e7cf1cb0603d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFYY2202759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a99753d96539dfdb36981a6950057eba0c39bc15a0de9bce5f90197c8f8b141. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/QZFYW2167947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x359f1ea5b05141ad1da269b73c1f226d455d3d8a6a8f08116980700ab496117e. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZFYY2202780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed6b87ed852fb9eb66ca8101865826b128d3c41cc0b781ecbdcea89551ab27d0. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZFYX2299394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d7c3b43309b0c494e5a81724e7e178704fc0fb06e5ff91a95299068f33f501. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFZ62249761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e18b9dff6437217c57f9c3e5b1494567bacafcad2556e031cfde1a9e78a0a9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFZ62222466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc095879bded62ad0168afcf9f3aef3000cf58e07f0b0192fc9f1214d4ea037a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZDA82258139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e57a0419c98b2298aa285087faf6d61da95f595b06e0af38d9d277dd760d5f2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:53:20Z), 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/QZES92215664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5718dfeacb928f3cb7b18fcd631a76640bf66629c1076384529fec72ac5889a3. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:56:22Z), 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/QZHN82269904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda89a446ff1a3a3212bf38441263d692f124b6c94f1cfc905fc5f29d14241c39. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZHN82271990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc8d9c68161a756f0cf87c3b0fb90f9e9524f0296ec47fcdf179e5f72637f76. 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/QZK6K2294778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908e41323eaeb80124509256dbc15b0d71263e1b5104f2b17b365aee5a60568a. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:31:37Z), 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/QZMEP2250183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc610f8991476d2d9da8e8b370aefef1a10fbf01ebd5432c87e57320323575a5c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZNWU2201086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ebb84305f2fa6b57e92119f4a4a5ce164e0d4c2fc7d0e2659fe74b7c03a976. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZNWW2264877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09560dbe4477199ac46c68de19aaf6c626a73fafba577eea248bfefe6f4299cd. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZFYZ2340522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2212c2097d758817a8f22d058f58d03584ce4bc917e0a5ae2f03c3f4ba65a6a9. 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/QZHN62398134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ded0779e20b7a648f32ffdd2ba10c8da7becb951cd3116841b417b2025d1fe. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:15:07Z), 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/QZK6Q2356053.
Beyond the Clouds ~ the Beginning (Reprise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd708c96b603a84fabd16d3866ed6db740db099ae3e4361caf77784b90bc9872d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZK6M2379908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ccab6e849f3f45dbe05d2bdb3b72fd6f65d76f17a67beb8360605b4ef2abe5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZMEP2352595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854679d91aae495f093a65b305ff4c4316417dd72e12e87c0fb5694abe82b533. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:32:07Z), 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/QZNWX2385455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87547000faac6c8130b7bccfa65fe9599193f9079d27a914052bae1a08d2f95. 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/QZK6G2367761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8be001c5c6980cda3563465e14586c6276e424827c8b83406264ced157de8ab. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZTB22389916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2103c2447027ed5f38fab3a5ac617b2a94e221b443a3a80d386541297263bbbe. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZTB42363174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f523f177612480ba7ec994acd822c3eeedade1c91442c5dfeaca026407915e. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:32:05Z), 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/QZWFJ2388013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3333812d092d4902962db975b889065b8fb66a030d4a3256b3bfb14af343018. 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/QZDA42420929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0c8af7550f932e59e5491b34050ca5838be7c4cfd847e9d4353e7d991f8512. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZTAX2402115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce50a052ac55d9a7fc7c5fb696c728da2e6cf49d5aff92757cdfcb2dfc577f0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZDA82309013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6879c1928eeb37df1bfa02bc759ee65fb0c367d1562788bdc12ea80abd8ac04. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZHN92416363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf833c8b6d65422e6fcddfb2f15ca34410993c3d684adf66d8319765489addfcc. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZTAW2491350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ba6b3fa3f3e02e036294e4047dc3f771310a84bd08ed280f9afcdeb1eb2bb0. 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/QZTB22412306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e8667f005aa25da5e872014e233b754c988a2e694b73ba8da54addc484c36e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QT3EY2489604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fc245a1efb1a58f76255053a59190ba29b2f7f99aa13ad0ad096385baf380b. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZWFH2533327.