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 0x2cb6e8a7d3e735e7eebfb9f488517896d60c3650ef9d33a2baaeedc7fd314b2f. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a9dfe6e-035c-41f3-9c8c-3aacd9282fc2.json and https://artists.proofprofile.net/proofs/artist/8a9dfe6e-035c-41f3-9c8c-3aacd9282fc2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Boribon [Rajkai Zoltán előadásában (Ungekürzt)]
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 0x2e02d86ad34322a8e422031809512d06c6c859e424af1e06bd26853fc3a40eb9. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXO72295226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51d3af89516ff3320b8dc6add624f5ff8ad598fd04912b18f2dc60a7c5f50a7. 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/DEXO72295227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3525c8da3877ea221e15fae5b563aa0bb4a4dc3fc7a9c564a13412a15065e51. 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/DEXO72295228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5dfffcf3302573eff3e8062f714900bf51257bf6bdae41d0a2b64afda9ce8bc. 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/DEXO72295229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a54b0a922ee5922602bc374cd20b287304108791ab0853376badad2806b3201. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:26:16Z), 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/DEXO72295230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0092bdbd60087f083b10b908f025fbaeb0230e1f1bc65be31f61bd35da49df4. 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/DEXO72295231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fad5d497207d9c0dffe5cf1061e6d633e05b11f88e81cb6ec40f3e57540fda5. 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/DEXO72295232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9060fdf8aa13cb99f33d5d5fc00c6199dc3b382b9acc32d003e7f84062e6dbc. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:35:35Z), 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/DEXO72295233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x898f412da8d41ad56d6adb42dceffd4642656c1414386669638baf8e0ddac57d. 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/DEXO72295234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7eee7dc8c9d8c2f6092d21a3e502a6997c2da3dd2413d21d1b79105f4b0474. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:26:22Z), 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/DEXO72295235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97c3894ebe66e503448c56042848520bafd05a8bcc1f47d2841f29bfe473936. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:05:25Z), 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/DEXO72295236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec8011e1fe8654e6e292a32733f529210eca33a147cbd669ccdd46571e453b5. 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/DEXO72295237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6acf433529a6b98528e4ca9e5ca4558c31e71aa5ca15e2015bf5eb9beb8da781. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/DEXO72295238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6100c1b773fa318eceb25d42054d65cdecff03d5c84bd24b0a455610afac7187. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/DEXO72295239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442307a8ac196598d4496bd46e171512bd3fb69002fcd8bf78dee10f4d928383. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:19:05Z), 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/DEXO72295240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c80e19ed3426e33ae60afc76e1e9007f135ddeb7170d8282653a04345238f8e. Chain 2 (Bitcoin): anchored in block 957778 (2026-07-13T00:08:48Z), 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/DEXO72295241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dcc98c77d8b869fca896e7c9cdb4157826da8cf1dae3492e6be5e7311fbe7ea. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/DEXO72295242.