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 0xd1b5e9f975e7bb137940c6e8a01f24ae8c65365166c8233aec1cbf70ead4668f. 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/86f6ebe4-4067-4602-ba48-ee3cfc5d4244.json and https://artists.proofprofile.net/proofs/artist/86f6ebe4-4067-4602-ba48-ee3cfc5d4244.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 0xf2c2a372f497cceaf9bf852b81a6efaa4b14affe1963df38cea2bab95dabfb35. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USETB0610663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090e73d97eaf44ed0b2eec1dc61f449bec8348d0b9c9655c65c2927430d434f1. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:17Z), 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/USETB0813228.
Loudest Praise: Hymns of Mercy, Love and Grace
Glorious God: Songs of Worship and Wonder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c59d8bb5afc9e37d51791cd66198ed6445a9610ebfa678b0d84e8f1271f019. 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/USETB1900121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ed54baf4dcae80fd400e7fc9fbac3a54193eab1822788e74c958e9ca44ecd1. 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/USETB1900126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134ef7de6a14114a55742b953e521b5faae16f87ddc2c6a88231325489c42fc0. 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/USETB2100546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x825ed486c74eaad41b86cdfb76552f10aeec142900c304711f90efaa260aba4c. 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/USETB2100549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134ef7de6a14114a55742b953e521b5faae16f87ddc2c6a88231325489c42fc0. 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/USETB2100546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e0d30fe3438d52090a8ad8d7392ba53b1ecac30b5d05c5cc3b7be5b39d89db. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/USETB2100550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6291270ae954462df29a3b57ebeab9ac78d1710bac33738822c1f941fff10dc9. 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/USETB2100551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9aaf8ecb2757abeb285c3d89b67510e40ef42adfa115721faf717d7793ec23. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:06:04Z), 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/USETB2100553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64af605bc2664da0af451fd5bc331232e6b9bfa27c909a7d75ebdfabb6a79be0. 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/USETB2100555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2282d3363b837f6ae5ae08954a0cb2cbf85357101a5ea40c5e632276245b552d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:08:16Z), 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/USETB2100547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad676391b852191c3a6a5b86a38481111580de9cb8d0edcb1152be0cea35fb9. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3U82400447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04a32f3bb99dff74415fabeacb19d315343936ee23904b5f8fa60ea283f5e922. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US3U82400451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fdd4a4c906c2925b1b9a82dae095e5aa50e076b7e3f7e3ea0c18823e874fbb. 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/USETB0810500.