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 0xd19809d9e95115fe85ed764b85e86fba2d945b99bd0c92945d5a701e1bbb8f5d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f985b5f0-0343-4c63-91a0-521f8f2ce00f.json and https://artists.proofprofile.net/proofs/artist/f985b5f0-0343-4c63-91a0-521f8f2ce00f.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 0xc1453db96676b3953cb4d77da153feb99974718ca6baf572282a2dc182f5a1a6. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/FR2X41925579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4feecef491d0af5b6984eb4b520b6875135f2dd8f3ac39d7a346922919c076a7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR2X41929636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff9cfcb76e12476d817b2bc7f0b06606fdda1fb6ae58b1148a5db0290be213da. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR2X41929638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568e9d95dae235e0aab3407b0213ee2a724f0f0f13bebb2e9eb14cb4af460200. 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/FR2X41929642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe19e01196773877efa0da277b8ad8daab2ff2d7ec6f4427251244162e7cfaed2. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/FR2X41929659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62116e00f3abc2bd5ac5d808d806764103db68739e4af3a53eda75201c37429e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR2X41929661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03ed74e94244933b27ac5d72130d84d399e1450ec9817ededa7c9abb576b517. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FR2X41929665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad5f16b2f9a3da97989e24e1aa02f8e8bd25e787f4cae246568ef03a44974e5. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:54:16Z), 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/FRX282348570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5390e635d1c4ec5cccaffc1c1d8d0e0bcad09eec06601bfac610cf5800f0d83. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:09:47Z), 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/FRX282348572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97b15130f528efd15dd52560647d13d2e208d68bec96a645671e4db8f7d3652. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRX282348547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f289b3e95b291766dd01314e157d8587d4bcb17102f26cb6e201fb3d89584c2. 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/FRX282348553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795ff400824ae6ccff38a05bd210ff24756d90ef1367f7cf9d7bb776dd169471. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/FRX282348560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8343b95f9007cca3a91849c1bf72fca19f2b56a554e1fe4007119dfd7a8a161. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:51:20Z), 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/FRX282348561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3579e79a3b80ea27b85c935b0ed094fb2051fe8cfc29101daeefc17c3b5d01e. 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/FRX282348562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe978cbdc0b7f99c956aa739419a1efdca8c560953e0627b33ee16518d855d35b. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/FRX282348563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4d2044fb010a6973af1d4818a5de09ef6bb779e1c228ece08ee073b4102a99. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FRX282348564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe01e88433fa7061dbd5c3b8dc78c455d473b873e19db1e6bc9bcf7086fa2791. 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/FRX282348565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0703fe894a1709f89eabbe8296f23d1871aee85b1f3ac1ac8e29abd9d22fa33. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FRX282348566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa719f0c57e4062a21e98e74f490a19223fdcad97687e9102fd74450e37851f66. 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/QZN882155382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332296a67c45f4f03ded9f89ac7ce2e41b21deeeb9bc5f1b1d046e290dd9a77f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:58:23Z), 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/FR59R2237746.