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 0xbda237c2882901bcfd071fab10780ff2c2195677e9d28b347f167b48d92ac0ee. 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/d3b148d8-ff11-4ad9-bc28-8052e52d655b.json and https://artists.proofprofile.net/proofs/artist/d3b148d8-ff11-4ad9-bc28-8052e52d655b.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 0x5dc768bac3ee322bc67d3d65793323baf68a71f007e59c5ebbcf7395dffe1804. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/JPES09001290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0469cd6c79cacc2ae6fd6c0fbc3bffdd7bb2ba246b60381fd15f2120efeac557. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/JPES09061879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef595abecccbc92663fcf5fe24f64473e8fea1fbc75a3185274774c75424241e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPES09202070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3f220b69daff1734c01160a8e7fce4962c14f2832acf52fdb84bf6baa45e54. 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/JPES09300540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcff21d48fb1cd42db41070a74629d28180cff1637cfb47243915e32b0216405f. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/JPES09300600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb0ea1e8c24d1d02b96fd58f4614445fd4be8963b615f915f2b33db71f03c0a. 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/JPES09900186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f024191a57db450c96a92afeab763bd361219a94abcd79cacc4dcb3096dc19. 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/JPM902500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf632fd23e0fdba4a93e21f1857d07248d5347b437796b36e2725fe0f57f7572. 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/JPM902500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb87e4ae9f8d9309f4ec74d1829332db3bb9da82d1966687521c3b6ea5ae0ef2. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPM902500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511bb8120c8a0c543c0d1d63074fdcaa56fed69a4cf38dd019f0aa1d4f6a0921. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPM902500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f024191a57db450c96a92afeab763bd361219a94abcd79cacc4dcb3096dc19. 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/JPM902500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf632fd23e0fdba4a93e21f1857d07248d5347b437796b36e2725fe0f57f7572. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/JPM902500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb87e4ae9f8d9309f4ec74d1829332db3bb9da82d1966687521c3b6ea5ae0ef2. 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/JPM902500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dc286847fc93f1a9c1925222d25128d329b3706ef0a1fde0f8bdd4832c3999. 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/JPM902500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c784d437bb8bb3fffbc6bd9ad14ccd36b9446bc12c6e67927e11da067046e8b. 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/JPM902500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52edc80eaf6c8c59890fdd4dd713ec1ba3b13dfadef80ccc2328c85249ce2a54. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/JPM902500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x511bb8120c8a0c543c0d1d63074fdcaa56fed69a4cf38dd019f0aa1d4f6a0921. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/JPM902500016.