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 0xe196fc082e54682c639b2306d27edee76d7d27fc0dee451561ce5976e12f56a2. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a3b44f4-11cc-4b4a-97e5-5623882aefdd.json and https://artists.proofprofile.net/proofs/artist/8a3b44f4-11cc-4b4a-97e5-5623882aefdd.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 0x6db94926222c6f04834003b6ec4ec2cf25b76e7c031660a0ff51e229a9cf60a3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BCLTS2100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ecfb491e3628210dd1e6ed17726246ec0d758ac06da767e77a0814270e6906. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXM3I2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd9a73423f5c99052fa7c819145452993f0245649a965525950c72d79e7fc22. 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/BRDEP1200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab730b8b31430f1e07355b2b383cd20c12c96d972c1fd0d434f24b6ae8f0261. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRDEP1200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c53c9327724154e31fcda4db623a1c544333c15c62e648a6bdb606635c34a7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRDEP1200274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d9af572cf896a65ef86bde2e3740f768e9b90ee738ef9d54ecee7ed3e6d8c3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRDEP1200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb0e1f18514b9a562794c17561b070cc8cdc4d9f38f9e8ee09e0f8cffc324ae. 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/BRDEP1500319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d1d9189ac89a455736c8cfc27bf40ffc48899cfce4f66215fe525462821903b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRDEP1200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611159196adb03b62cd008378d0ce65edf6b989dee5c975b1d7c24749aee25d5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRDEP1200285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe546da5f0f9e88ccb4e1d1aefb2cf9ec5322cb54a2da8f6de989d37a1ae3c434. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRDEP1200281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654e98183258a2685941dff14103f48138382152ef70cf165426829a3d720ad6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRDEP1500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3062a6a01411574874e9f99003c94344cc1aac5aa26a60a16135f326d884de1b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1200278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936c1285fe37131ebe48973a48d44a1070e4f5750eba8a6a6bdfb8d83ee7b5f2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1200276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fa0adb3ec5e2352dc3651c5a8f20135995d81097e0e86801cb7b6c56044aab. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1200277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93668fd5c46840d0fba062d762f629b2017b873fbee6d4b34ff32935895a9b9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1200282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe35675f26235a172f40625751c6150d6db58ab29a052fe4ee563ce81abc3f1d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRDEP1500321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47296521ce7b1a8eb240423d8b06c7f7f5b7f27e095656fb8651da95c06d10f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1200279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af758e8b077dc30f68f6e475fb588b75b9e51c83b2b185446692755658b9c3b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1200284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3328414ab742defcc136e68fe9be39323fb6abffc9a7245fd4156f5f04d415bc. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRDEP1500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda6f4afc8f34f19e1ecf72081c71e4cfb356cb60f7e552d19215ef6ecbbfdb6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1500313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f178907e053d457c6a9431ffaf9ae2efba420e5d39e20a6e30b240d314ab6c7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRDEP1500316.