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 0xb994bea427b66efaa9c18fef302ecfc9a1bbe2a79dbc5bff46e73bfd3394f191. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f112764f-c6d2-4f34-9ac9-ace1156e8c91.json and https://artists.proofprofile.net/proofs/artist/f112764f-c6d2-4f34-9ac9-ace1156e8c91.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 0xf4e48275c33005dbea710cb1ce9f0ec4b62f55b905758851ce992742b26ebc9b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMJG2230462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18124e3ce3003b07f884258f4782a315e160744a4d393b24e0a31ca416108a0a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBMJG2230464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c607ca394323d90322b9af8895e503e67dbeb1c1fb54bac27c393b0bde1ac0. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBMJG2230465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73eef3df0be1b72394374dadb6ed3ef00b308fa4dc5c81db9d34a2acaa854b96. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBMJG2230466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a596d840e063fefc6aae00ded7a71c7c389ebb177a4b50ba94c7e79a697b1e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZHN42267493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a0d70adf8bb09b7dc4b5f9f2cfb112f2f641ac769e194202bc163a58b4d6e9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZHN42267494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f296b18ba8344a956d559b97094a469b84fe6df54bad869ad18cecd555f89fc. 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/QZHN52127415.
One Scene Unity: A Hardcore Compilation, Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c97062a8634bbf855a381a737efa18c3e4b44f599ebf964a03d6f13e4aafc42. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMJG2303753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28657f1bf26c0e452029af43131e79d332e47a32f2bf2cba773d64713185fd3f. 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/GBMJG2303757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084caa338838f8e7478d769183697c6e49e0a5069ef02adc5d03796ffcefab2b. 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/GBMJG2303758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de248a65651c5b228e9f677afe5de45b86afc9c2504af89059cd464ba79109b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMJG2303759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81aba4935515e4b420d720388bddd7bfc2a2bff8ca9069456646aca7ad9976b5. 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/GBMJG2303760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d26f5f0dc7b3e8afe578b8e4f0cee409e178f7c481e3fbac0bbd4ce8b8737a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMJG2303761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400e4c07fe0c4c3c271b4863cd33b5247cafeac3c7d36b73dde6f243b9d03622. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/GBMJG2303763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2a2af5de6548fa042ebe2cd600364053bb7bb3642516a37954c6b35a943955. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBMJG2303768.