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 0xb1abbc23239eb3e24a7c0a7b8699336f41011fe7b8a7b8c0148430e968aab9c1. 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/6f7b12cd-0dea-495d-8146-68bc67f63a53.json and https://artists.proofprofile.net/proofs/artist/6f7b12cd-0dea-495d-8146-68bc67f63a53.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 0x70c868c8f0cf806fab2aaa5e952d1642a66b35350cd6f89b05984dafefed471b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/NO39G2003030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49094005fe4fb876049674e9224898f578e563a147e75d9ff3b0868103fe0735. 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/NO39G2003050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6568669a0fe085a84d7729ab0f889d18d73f3d725b6f4e80c69a39610bf56b. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/NO39G2003010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62541518913765c6b99d5a31fe282dcda95fba48f185402f7550a95be62b3eaf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NO39G2003070.
Never Forget My Baby (Jaakko Eino Kalevi Pastoral Rodeo Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x940fc48020af316d72287ba1bd9819a1bd90a21a1a54e051fd7ac2c59f3e72ca. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NO39G2202010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23d46f6f3a75532b4dbe46dfe497bfc92ef7c66d7a7f78d55e052dc4fb1e9b6. 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/NO39G2202030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496f09ac02a221a05a3c1ffc48586bf87b4694ca66ed3c93a19f4835a1f5e159. 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/NO39G2202040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39a1fb0c4bed4ffb487563c60262e695be49a4a749a6c8895b3588b8be3f7f3. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/NO39G2202080.
Work Out Tonight - Telephones' The Big Fuji Ringo Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a02bbf0d6f8833b732f3bfd7dbe5671b73867f579b5aad4fa4eae41e6ce7be. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/NO39G2201010.
Work Out Tonight - Telephones' Jigokudani-Ashiddosauna Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fab20474e26f3b2a1ff42e75b722fb692f8e0c293c67d25694a1111dd47392. 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/NO39G2201020.
Secret Lover - DJ Sotofett's Cosmic Lover Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60b38b19a542626292768c8d5f67c1d9f0421e440a8afd6fc178f6187d40956. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NO39G2201030.