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 0xc300145c3740f950adc4f03b866f8aeec4fdc0476abc8ae928db0117d5ceb913. 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/1b6c187a-9ae1-4e9b-8178-902e53214ab0.json and https://artists.proofprofile.net/proofs/artist/1b6c187a-9ae1-4e9b-8178-902e53214ab0.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 0x243ce543f28c87fa082936d3bc2d893b912b6b97a62920328c9f53728fab4183. 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/FRZ039800220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a43ab5b13515666f13bf764d8e46592fd95ec08a6fc02dbe41aa8039e49ccb. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:43:02Z), 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/FRZ039800230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de647bf2c06973fe6f71b3362a3e4c0278fe4c64f9fe1fa82b1702b66ccc73c. 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/FRZ039800280.
Everything Is Never Quite Enough - Best Of
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d88204ca754e6f4d7e139d61ea109f5f8a31d58b34291e210bfee8c64a9bc31. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/ES8841012001.
Everything Is Never Quite Enough - Ingmarlo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c47e5f3ae33042d10c41e7baed26b00b4d29ed30288468df6cf464f6a29b690. 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/FRP292001400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbdfb340dd7905f16b84f07fc47afe0e6db27aaa062e0884acceb06ec494e109. 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/ES8841012002.