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 0x0dd75c2338ee345407d618aae91fabf0b0b5095cc74bc5744e1867ed7983f4b0. 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/75e02984-1836-4c7e-86d7-cde5e2cc9808.json and https://artists.proofprofile.net/proofs/artist/75e02984-1836-4c7e-86d7-cde5e2cc9808.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 0x15cd1dfb36ca9db74432e63b9d48bf679ff00726614fa9cf699f524a4a29ddf8. 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/IDAC52002103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e43eca33bcad4f236a812c3361779f0c4803c7a19765d5d7a14f3cb7ed70b3. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/IDAC52002108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc486ab692723ba441d98d4c7f21d2bd8d23ecd0fe15b56cd2edc77fd9199aeb. 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/IDAC52004322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26af789750df97f2231bd15fd37ef1fae8317dca87f80d56b3bb4a0ad6ac3684. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/IDAC52004035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503e5943bba1769489f022de949dc0c97e160ddb51ca521f9cb5991091a3de3b. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:37Z), 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/IDAC52004042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b51b8290d80e4841b2ffa4d43dabc77e77d54a267081e7b09becd1fcd5f281. 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/IDAC52004044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ce5f813d72b22b5d20e0b84512b54bd0ca7d35abb84373a875382b1e97b09d8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/IDAC52006041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e58440094cb9a770e27d8c953e7709e0ced8831d1c9c530812948f86c99008. 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/IDAC52006044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d8825dc8f590da1914bcf80a0913705af3b784c2d4e2f16c165daf37e955fe8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/THS080601201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eaf2c192cfe24bbacafdebaf628f61a29487c8509cb58a027511620a68fd32. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:33:03Z), 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/IDAC50900156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c95271928330164f123fced1da2af6bc318bbef5abd9d67909a7f020672b111. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:37:44Z), 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/IDAC50900150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x860cfefbd9071b05982890055c6f944a26310cd94d56190533e22b05967d513c. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T19:03:05Z), 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/IDAC50900158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b24e62e97e533abb5cf7eca855c13d1a3865d5f03f64b98ef6a8723e285dbf. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:10:13Z), 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/IDAC50900159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88eb7c9b5a2429c177de7813c33e8a58c7e37bc2d3d9f38113204f81994577e2. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/IDAC51700066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6dc552e371241d53ef834535fbe06a1ed9cc5ad872fa88da00012d36ad46103. 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/IDAC51700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087fde62771c6c9f37ced6086406c66fff54e2a26b3f70c53e998b585d3dc4a4. 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/IDAC51700070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b8c2bbb03b3767f10055e345775764f489ee0a5f53cb4c8c3a2f65df48d676. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/IDAC51700072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffdf9ec653f60747ef8868e58ba64039efb80309654a6a85303853ee5967c46. 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/IDAC51700077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58bb0b17a86f9ba7f2caee02a8c5fd417a894368e4be9e8561b47d4dd58c985. 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/IDAC51700081.
Nyanyian Timur (Original Soundtrack from "Timur")