1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x8d48e8f968298f86b68891061d44d21c93d8f73f3d3a6974cc5436c12d60027e. 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/e36b2a30-4095-44db-a62e-0744b02f1071.json and https://artists.proofprofile.net/proofs/artist/e36b2a30-4095-44db-a62e-0744b02f1071.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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x076a49bd91dff6640733241684220986ec89ce79ec1bbfdbb12ed8fe9cd39ead. 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/ITM030900155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d78e4d034f443b1bcc7108a21ecbf8b0a546a580799b64b1126fb0aa03d6dca. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITM030900196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d822df41070c29cf0ec8ba466d6896530322ec593ef7f32eb80c1a306fc087. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T22:35:56Z), 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/ITM030900176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75e9835d6e454ebc4a4475ed22e11f0c8802f388dbb1e8820225fcac7eb92a9. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:35:06Z), 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/ITM030900183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3d5e8e5ec6bcad0f75ed0f4fe5c6da6a812d1f101c15da85dadceffa26fc7c. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:29:35Z), 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/ITM030900163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7382ed6c9d4c7f466c53277359761977c26b818f9c0564d9498c0eb18589628e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ITM030900210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96602035f19f785ce770ed6a8c39354e74ccb43946922a36da3fcd4b14df6bd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITM030900213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7adc3550ba519c69a176a16323f174ee4aa68f10e0def1228a3bdbdfb883f31. 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/ITM030900181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bbec97b515be46be4b7e7cbd837e9858a4805cb71a25074013197924a7eaeb. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/ITM030900180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55ae8dc09f947d64fc6f2e4daeb59d2d35406df1892816ae2dbd6293242acdf. 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/ITM030900172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a6510bcfd2ea8715bee22ae1ff0f861aaebfdcce7af188aa722726cdf35489. 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/ITM030900186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b70679750b886b7f8ad7b0978f06581ccefd8ed129b79f87f8b1400fd047b8. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:50:26Z), 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/ITM030900221.
Voglio che tutti conoscano il mio capitano
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d023421fbef7c28aa6968ae3cacef2ed4f3ca574d15e65fc27d9b7d66caafca. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ITM030900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7e58afdafe94756268919d07282bf9c5635a2811be486a261784826ec9d513. 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/ITM030900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723f6d23f4207d3b0dfcb35c4da95eae25cd559de3e4df3165789efc1ac798d7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ITM031700153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62a3077a991fcb3d0d26d3325019e9a2c538f08a54f1e44d02c4efc9601febe. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T01:50:30Z), 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/ITM031700154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf0e6309b4b42bbe6948f0140aa01d1c2ebf22012e26941db79b8a69ae6e0d1. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/ITM031700130.