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 0xeddfc04abe60260835295b4eff5eb39522aafc658370fb524ab43173bfc47846. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5d8e3226-3a4d-41f5-be49-3cdb9d3e4a95.json and https://artists.proofprofile.net/proofs/artist/5d8e3226-3a4d-41f5-be49-3cdb9d3e4a95.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 0xa2212c52606cbc6164ad24333e228ba8a3b4006551ff6529dea05e4e2f3bbe2f. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:10:12Z), 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/QZFZ72188964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1490a996b1e3db6fb1c923ca291b85b6ac087bba159cb9f43f39eafb94757286. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZFZ72176523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456683b67b1fd376eedf9b982c75f979f2a5bf4a1961f67dd8d450bfc33f62ab. 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/GB8KE2403892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497208cf06d9348ca97f2e4ff3203d76535fa093ae39807ea0f85d6f30014173. 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/QZFYX2122736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5628d6fdc699b5183b23060db086e8ca5cd326e84156dd8b0a1d62c7839cca2. 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/GB8KE2403896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ca7892646ac66d1edbe140315dae951db2c470f7995fdaa275139f81beea79. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:54:28Z), 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/GB8KE2403902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15183948148e65e98f09fb06053098b8f68254b912b880822cdb5c1b3c6dabe0. 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/QZFZ62230057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bbb9c539a21a5d5142d10cb5ac8d26905f325923614d94e05238dab0e805d5. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GB8KE2403905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe01f98857d6b94dddc101e6e8aab27609ebdc8f5c1ccf616323853bfefebfa6. 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/GB8KE2403906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7bb7f59a53c709e0fe1238579828315e251b38b2adea49a52d0fbbf2a953cb. 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/GB8KE2403908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde6cfc387363b55f15319ec896647be3c3211cceac98b4ca07cfe8b568bfcdc2. 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/GB8KE2403912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9045f7a894d036f3eb92b117cfdcac5f8f363a6867c653cb71faabd5097e319a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GB8KE2403913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf469d68bed94d8147b28d1826118bc631fcf9b4ce81067e6ca55e58942cb58e. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T05:00:01Z), 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/GB8KE2405673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838e72447888042c13e8dce4375f728cd57340c58ab42cd0cca8951d54a1de4f. 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/GB8KE2406363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b676f5e2dd3c4c6b9906dcec09d3e38f0639237ad1c678a5192425f65a953d3. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/GB8KE2408675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ce193e9a20544ff0d3a5b92026e277514e018b6a0da2ffe9431fef29daa03d. 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/QZMEN2191672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f07edae8a8dce629d0986a5516cdeea7daba216300664af986672dda235c19f. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CA5KR2457767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb451284d36cc69ffe9c599c9366cb8501f833df3011724652109d5d567f35ec1. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:44:33Z), 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/QZPJ32402979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d69d20b84a88e87319791707e4d76993fe7b7abec34137eda53eafe65c935a8. 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/QZPJ32425300.
Stacks On Deck (Yağmur Sound Special) Ahmet Off a Bas Gardaşım
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6099fb62ae50dd4d3e0aa001685618b0075ac3c7e9060a3e93b4d10e11435f2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZPJ32434365.
Don't Back (Valla Kuzen Bi İçtik Herkes Jupiter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a7678a927d1f6164f8c989d68f7005332905d5221de80af0b97e1789508c53. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CACWV2529692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76011292dd97f8e229f2a8ec6bc7e6c6aa497d6349129aa64bb7b5c537d46ebd. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/CACWV2529677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7afc9ee1424da6ee9a00fe306a7924b01691498fe8fb6a247d1642b2893f810. 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/CACWV2529675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5655cc3f6ad06155b21717cf1a73827f3869e7f8b724fa90cd27e7969b94488. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/CACWV2532469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e635b77e0053f5d34a4ab6e9dd06f01f12fe5896ca1085d7f332bebce3c4563. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CACWV2534318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb74586376ad9f234a9409fe2d5a9be8477d0cfe6b05fc2cddd47c65849a21a13. 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/CAENV2584202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb669c88d6309f9e50eb1a62200b72a962cb72af862499152fda52ae1905b4508. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/CAGOO2534641.