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 0x8a4d3b3963ea563d646d09b4a59e18dd5f527f3725e51514a4ac1e2b4d6135c7. 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/cf9e6be8-ff83-474c-b4de-2bd95592dc3a.json and https://artists.proofprofile.net/proofs/artist/cf9e6be8-ff83-474c-b4de-2bd95592dc3a.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 0x0f71facd7770044f32b56147d25b3e4949b1cc42a1e748ed3375b9e7c44b0602. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TCADX1859483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97191e57c767c0198eb3319ab0a0900bdcde4281068a6c33779dc3b1e79dfd5e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US2762094258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4a28b12f7438ee277891ce9035267d77a5575b3bf6f037c2e26a03be727b4e9. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:31:33Z), 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/QZK6M2039982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d1c712ab39eea519404163766b0f5a7d115851050ec69abdf39b2ef759c8de. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/US2762303217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc670607ec7e7d689b617221ec8a9e7693f88d1ec94f1dacaa9dcf15902ead5. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/US2762303297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11559003e6477c9a2f95c89090da7403c7a588ddcce44e47e567c8cf9b8045c3. 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/US2762304151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea776bd827bb56ba391c49888f18c8de30ef375927d6b8ed40c08a092f17aa9. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US2762304149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed7c2cad80ddcc12b050287706002007c4de7902104e8830fab6138c2d7ceab. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US2762304152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e234f17304bf9dbc1937f7d38689f0b51b8fcfc6fd96846caf24847d90fc7e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US2762304154.
Don't Meet Your Heroes (feat. Brad Paisley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1ecf52fa7a08df8c2a0ca77ab97aa8219a4c55d53045447f4f188d7d061d88. 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/US2762304155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356783bb134b8f0486bbf2752ed42bc888466cf29b83334774400b273ef00349. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:10:18Z), 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/US2762304157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73169037bdb7bf126fc274a5490084f788c0968735bcdebd250e70536a7c2c62. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/US2762304160.