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 0x97bb5dfb915f664e8b1345f6150e0146f86c2b86b647e69543552a903327a2fc. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5330c429-855a-46d6-a623-071cdadd8f93.json and https://artists.proofprofile.net/proofs/artist/5330c429-855a-46d6-a623-071cdadd8f93.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 0xfb008c4416edce1d7d738a38535b97859837f8d4fc40818ecdbeae20c9db0a64. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SGW502540555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd430250e3689c028bc3b517cb5683b18dd39dc97b1cbf82cc0d3541b1cb4f6b. 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/SGW502545907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0820543f9201959fc9f5e6965bed444c1cfa8c19017b2aa28b6aba780f807c. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/SGW502562675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f3394cc159d101f1bfa68194863f2cfe0288439c9ef1f9e8254967ab5d2990. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SGW502594486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88df73767fdfbeb830d00d7ac35d81b5971ef8183361418f4779075b22c108da. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/SGW502586794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675bf39bff48cdc15bbb7ed5eed1215918f9f1aa42d75d373c3759ea6dcf73fb. 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/SGW502566571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82308b636b9fcfd12ec10d151c2f0663550c60b650ad2301b92605eac29f05a4. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SGW502557898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4b99d7a0ddf3734bbdd090e4d392a2208544d497985f2dd1f10c625465eac8. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SGW502598734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5a154c0e611d540f181c5a52016ed33507ed1b5e56e69915b6734e2bfe7aa7. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/SGW502596324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999fb8aa7c2e411863b465db0e93ab24ebba385eb8ae5512a20be61529423e34. 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/SGW502562239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a636c5bf1df25c5115a1bf9f6b8a3e8d0388f7a8930febbed23887ee24e9918. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SGW502558597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3dce97dfe762c36b9f3c1757b7b3b1a178cb14a7b7047208c3c3ea7f5ea6cd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AEA3A2590060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x981d230bebac95f0e3464671b934af031d3866092c9ca8e375f254b9412aa5ed. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/AEA3A2522790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c966e52ee099257942cac13bd65302f880f10ec1d9b68d2a0a424a4969beb3. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/AEA3A2515903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54879238d62711481a212224f6d40e00d9e4f681e26206113022888fd27f7943. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/AEA3A2533153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad27d7a2d9c164db5c83cda59f1ad4e0d6564e5b963c46a0ef6999df1ee3350e. 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/AEA3A2551358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8332a46ec83d0fb0ac6522ff36d0514b775fadcf73c82e8bb082dd1abd028d79. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QT5M32553108.