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 0x9ffb5353c1bbd212cce434dc1f391f964b9f9095b141c41fa157873d77bc087f. 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/af7fdc66-df92-4fe2-b70c-a69934012edd.json and https://artists.proofprofile.net/proofs/artist/af7fdc66-df92-4fe2-b70c-a69934012edd.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 0xa7999a78b119d4317e80ed6dbe0efcbde31124283b6d8042e1645a1431108de1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/RUA1H1726931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e9fbd81f764992c9532c939cc6a9c0b0a2b38ae8e13d49c8c5a7cc410648c4. 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/RUA1H1726928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938aa13468558c69c4f20d1508d307dc7a6545affbc95accff207ae8b99f53c3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUA1H1531398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61105586f18d6dc1674fa1c14dfeba85386916d12cd8c8b7f79534e01b27748a. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/RUA1H1704378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66636bb4cf56f4a0660db0cc351e896f705670d4ed754c6382929d9ede7cd734. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/AEA0D1850920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b4d5eddb62a0c37ff19f6437d427389ab88a46747bab57553095a5dcb159a3. 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/AEA0D2274581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00391a1bdba63bb4c084aed8cf16f8487cae0430064efbb31ada8949a52160bf. 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/USHM22097937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012c4c6422ec7d4e64e4c9cb052ab0d6203e464b9baa287f4d201b6c8b42de81. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/USHM22097938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x687e42a43addf8b465968c5a8e65a149b7a58666ea831b889a3ae4271933dcc5. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USHM22097939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2387ec7cf10ec6a1b83b65607180b2290db4ef4b3d34987525ae84593af23369. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHM22097941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b36b4394956d510f7447984d3aacbf026399614e42244eb929fde2b70f9cab9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM22097942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f73a5884689044966071fd8f89e3c71fd9ec9c6e813059fb9b814e89d88fbb. 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/USHM22097943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f4a5ab59b0749fcd45aa7fa57e252af95316eb895f5ad18ac9793ad2b6b2db2. 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/USHM22097944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b88b8c0b0a603c6d63f665bf41daf9f5f4bc86e35cc830d0744fc11dff2f88. 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/USHM22097946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf610dafcd44ee3456087239c8a6e9bcfabbbdd7655d15dc7e0eee0d0f6ed641. 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/USHM22097947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9d306af76dc65e23748613d585ef550ecb1e569ad25f65bb2ed432abdf27f6. 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/QZW9K2363046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc151da0646c02e412c9bd4868af96188e6424b28dc516a99862bde17acfbbf. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/AEA0D2310615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96de7426cfa4dba6ff08fa6ddfff8318b4795390bdc690a1940247fa2723e8f9. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/AEA0D2310613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82cd06143763a0132778a1f8c511a8d6d39b7d3c311c833a316aaaaa0c96ac0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/AEA2Z2411508.