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 0x725b35f2c27f8dc4a9bfc3736602e4111389e8b16a1363bf7a78c0bafc206201. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdea1e13-f8b3-4ed4-8440-62a3cff05daf.json and https://artists.proofprofile.net/proofs/artist/fdea1e13-f8b3-4ed4-8440-62a3cff05daf.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 0x4237558413d105e933c2b5e1312ac6065c5c6007536d518ca6b09325895a3095. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZE2N1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c2e2553bcc72cfa05f5cd228b8b3908c3ef9466354ff769d8bf8161463eab29. 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/US2762094037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2406579894d92fdfee06010a336f1a8232266df843b1bfdf14709723c7133b80. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/US2762100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b98746aa47ed88c2a0b3886b197a75149c7a0fb065bf4a8496334fb4fe29414. 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/US2762100080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0230308eee6676be349aa10d43cdb95e324772d152f3cc1c1d199d7da9951af7. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/US2762100077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851717dab34807b4da2f83c7a85165f82f86edef9c46e22e1b4de89342870670. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/US2762202789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf48d6828a1c7e1ba674cdc5b66bb3be4a8634bad692fd019a66421bd15d322. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:43:42Z), 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/US2762202845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469140d473f0de8497d13ef17762351d74acc645003a2985e6d27ab16b027506. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:36:51Z), 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/US2762202846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc722398f0a26e1a530f9453c609b9b18d9840eb9cc045fd631ae83f94f787867. 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/US2762202847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3840b3a8ffb5c08f2d8535683a0ff63379f4292c50ac39e26c7e71f2ba1dd6f4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:12:32Z), 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/US2762303760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba85634453e3f9bb06c6ecfe019741bc4a3ea453cbb93c518a77a8608379eec5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/US2762404488.
The Devil Went Down To Georgia (wah-wah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62b33016d5a9e53ed6606d10de4db1f17e80797de74b86c7004560a61079ea63. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:06:05Z), 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/US2762405343.