REDIRECT Transportation Security Administration
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 0x724b9b2c1817088d5918c87027012b4e526ff419cbe3f60684b3cf8395af5539. 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/113f8eef-65d7-4197-b75c-2d0ebedf23be.json and https://artists.proofprofile.net/proofs/artist/113f8eef-65d7-4197-b75c-2d0ebedf23be.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 0xf9909fc3bea64ada17ccc0a60d47ee00b0c685d37e9c6c78b579381c26c032e5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLB171101429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd114c44da3cadad079fd504bbae8240d46e869bb9b4dbf6a7c4baa9740ed12dc. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/PLA641509775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa10360fee7930b87f9b60c75dc0b37406161b8e13636e3b364bd0c4f34312098. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/PLA641509776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4088b4d09f2cc3602bdd34f851a1f55b9721233d6af8732c290d17b0a11bcc4e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLA641509777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06c921f25b248ed3976c1f7a09dc33542b2277cc5a2c0602ddf8b6afe341d62. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/PLA641509781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84f41f9e6c8f87d1f173167c1e41be4ba1d9fd34155294eb700dfdf2cbff852. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/PLA641509792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fe8079b312e27334f9a615f7672eb3a156eeb8882414bf9fcb7aac04f7cd42. 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/PLA641509796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51469bb0f3bb60b064184bbfbc8ec93a1ca77d19855c194840c45c11b7ec9b5f. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/PLA641509797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x850ec6764d9418cfd61b7638de1eb73e213ea2a3c734175642fadc71b592c081. 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/PLA641509799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb018062b7faa2a2e97c85744a89b131ca4ccb8c60cfe29cd155873e852d94573. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/PLA641509810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b71e8981d12ff5784630defc82fa85d122ce59c63e648297faee8f1edb4dabd. 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/PLA641509811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a484b45e6c040de8c1d16837cda8276811f43fdbe9c64c59c65138dc91a0605. 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/PLA641509816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5020b784069f708efd775185d670966f52c80ea223c48c054017f0d57e7a26c4. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/PLA641509817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0e9ea21d0ffe98071fa5378590f187c61bcf6c3c411894d3f89a86caaffe11. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/PLA641509819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33623748ad33f5dece511b4c5cf82ce33fa1df029971e0e571cafa1450dcda7b. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/PLB171100708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a3256023e8410b201fd0a5197eb9de5f2e8a93d98e9ae408126470e8a81cab. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/PLB171100711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628b3eee043768d516e2e2d946eb48d3ca8414b6074809d9179fa19ed696e6eb. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PLB171100712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735877f81ec000703456db347b954dea37216d20aeed183c6d349ccd14bc61c5. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/PLB171100715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5a54988e6ce1e1e9144d050e95fd5243de764f165f915973aa2ad31628934f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/PLA640400512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bb5fe930e902a168fe4440e0778deccc59a457611c4e74801724a8be72fd63. 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/PLA640400506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa743a13aee196ead7a10715b34d68fb8e42139d4d1fe403b64bdb4ba065540a8. 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/PLB822300254.