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 0x3a46a02d03634e929a783965d58c2652c36410268da18a966d7145f5a36aca6f. Chain 2 (Bitcoin): anchored in block 953819 (2026-06-15T18:31:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f9876d8c-940b-4324-bd2a-f98df034d331.json and https://artists.proofprofile.net/proofs/artist/f9876d8c-940b-4324-bd2a-f98df034d331.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 0xbd1fedd639e0d319c8a67fbdb4049cd1611822e8317f93d469dba76345550c15. 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/QZTAT2199000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac229f7b0e0d44f2027ba3fad36f1b3dce7cf4da8bbf72af8aa61b556e2236b. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:41:03Z), 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/QZTAT2199001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a917afdcc3a1afd05091114a2a5c08dbe5320ad44b3e1c315f8e146671802a5. 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/QZNWV2144092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e91f8f7e118e8d005fd20bdbc2f9f31a6757bd6204b2a07d56f32439f23bbd. 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/QZTAT2199002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63aec9c3ced7003b2e49736a8312d87d914438d50c85b2622938a9d7b8804281. 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/QZDA41979034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90b0c269e27863fa25a4903554ad22ec4587234093b87693fc94ed47bcf38af. 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/QZDA41979037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5606fefa72ab1e76d6f9b6889b28247c20d424e9bc399d6a7dff98197ab3257b. 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/QZES82179114.
Writing Out A List Of All The Names Of God
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ac94d58dc5790964982cbe4a7fa7d8a3daa2509a68d65d14757313be08c5f4. 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/GBCSG2300063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a917afdcc3a1afd05091114a2a5c08dbe5320ad44b3e1c315f8e146671802a5. 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/QZNWV2144092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab8d7a675eeba3b392eaa4bed1e0069c60d12e98335cfaf6a6a30147db1f5a9. 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/QZMEP2164871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c63e31c58374142e8f99276e4a300fb38cc9519ab6347b707d38ced1f7f8c7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:01:43Z), 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/QZFYZ1902562.