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 0x3258491f35051cc2f4517d643f667d3b08286178fb003ba06d4a397f53515f9f. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5a941c3-644c-4e36-bc37-a1acfc1b21bd.json and https://artists.proofprofile.net/proofs/artist/e5a941c3-644c-4e36-bc37-a1acfc1b21bd.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 0x723d69b8d531634faf331729e7669c5347358a1fa76020aac9bc36f4a5776ce9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA251434701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf94c1c6643e8200c9b39c3d1aa873c40e7399ebc27f356a55c7dc8f0153d856. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/HUA251434703.
Utazás a koponyám körül: Vércseppek a szemfenéken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x579631224deb5f825a6a1f6fe86725e731acc836a8309895b3d559e5e757ae9e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA251434707.
Utazás a koponyám körül: A Gyulák Széke összeül
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56be127600aea154e2b6e036418a56163ecea6f50f8a491dfa0e13286c1ebae. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA251434711.
Utazás a koponyám körül: Vissza a tett színhelyére
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1039bad6f4d675bd0f3aefb128ad828d342a4c545977142a0410deb398f65be4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA251434712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38e009629cf0ca50a42580a5c1c2b56f86b2a18804b1a69cf0739b87fca1321. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA251434713.
Utazás a koponyám körül: Az ítélet kihirdettetik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc434edb4a4c5f335bde8c53a9b1bad8f380881319d40eafffbda55f85404bc2c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA251434715.
Utazás a koponyám körül: A Koponyák hegye
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99128c4c955c7e2f8641de30dd9057b90378f1faad9ec7751b550cbad38a3f5. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA251434716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13652d5fcc34049a4a952b96ebe437b08e7ab11da040331d1eb3710a869c569b. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/HUA251434719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2633d9bd971dc3d11a87ca9e50b59a93f266c26a5feb9b77e856915f0694ad1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUA251434721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2633ab50cc7525b2d8f4576277f85a5649ea980fe072ab49816495e25dec9a3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HUA251434722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430aff405d5063430c83d27010f758a841ef74793628df386c3c08c62ba853f9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA251434723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cfbdceec92aaeee9a4dd124b7d979a0df0c8fa7e45c86307eebaeae4fb99811. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXO22204950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3df0179e3efe90a466a65ecbb95331a33e11b6fd67622c8dafabc7135b4759c6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEXO22204951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb40d5cd787a91fa3cca9c6df86bac2203ec1f985fce420395cf358a52253dd0c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXO22204964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2355f2c5b0b284a267556bac3ba74ebf1df5c1b198ac8be59529a48d47efbf. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXO22204967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79aa727cd3c1b85696f7b5427280cabda12781da6840c2a14d01d3e1438dec80. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEXO22204968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401071ff0768977c7ca5c64582c00cc5509548ca3ba206445ad0d450d45580a1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXO22204971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe020ea0375f8384b5f84bb266ce67bb7dc5de592e152eca6b0861dcdae3fc49. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXO22204973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2db0a79d9e6746a988689bc83ddd75cd2842e55093be530dc90bcd3ca983d5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEXO22204974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf607eb2ca3997d4055a0d87604fe36cd51b293181eeffe9be19c39180162a77d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXO22204975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b4bd196f130be861e0b552f545875538186af3ae1d889e917436e6657c367a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXO22204976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800c350b2e02ddb538debd16118bf7f0c81543842366dea214fe24872be22707. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXO22204979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f481230dbf2b581c332b1687a07c414a4e905668810c2e07712ca3ae0af398. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEXO22204981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc65cdee9ed37ed7cc4c757e1abe4483114391645a43e1a14533da95015eb102. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXO22204983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2163c618d3b1c3058d06443b8746deefc5a911f1a18a08af80d5ee4e8f1222f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXO22204985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfceb9add7696906991b7c1999797757abcd1c1b7870306e5b03eb2c9ccf71414. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEXO22204987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fa1980ac557bfaba33b0c4206873be609ed16e00cb52fd3ad40cfd244570f97. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXO22204990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824762c671efdada65d89572205734f86462bbcdc2fa78688e505e4983624339. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEXO22204991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0221edf12a8615868a05612e2388b2c529b8767c785f69689ec0c7d5ddeeda02. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEXO22204992.