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 0x42e2cf9ce76ca7f1d959463f226298345680cca2d1bde398e7fa590f1833348b. 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/8d522572-b194-43aa-9da0-5dcaf92d5a3b.json and https://artists.proofprofile.net/proofs/artist/8d522572-b194-43aa-9da0-5dcaf92d5a3b.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 0xfe6cab0a3ecd943a914bdfbcbe8c84bf184cd832697f5a41817571a88f8fdf61. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA371254948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74097b67482224beb0afd85a8bacdfa7deab413d7faccbb9625d22915c14d8ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA371254950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x942362a1c6ff30f841cd5265b72d75499381f4141952cb08be65c5824baab43a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA371254954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd08f0b799d13fe8feddbce56dc037db6f52e159e9636524a0f38fea06b3b8fe. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEA371254955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbdc5a383f82fc78406b3cfd6860c091cae2653c1cfcf1c735d2a7e341eca92. 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/DEA371254958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7a6c97ce79f59d4d8b50393c7baf69c21d499d34213cf01c577a0a61a032f1. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEA371254959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06c24ff6e28a1c5cb3c71b6e98eae8193c456666eb29a4cada4e01474bd98f59. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA371254960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335210afd60fb233c87ce385c2e835eaedd8e912f14004c437008f1db665b33a. 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/DEA371254961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38eb1f5d532194e836d31470b74850d78b665c42e9de7caeb8ab99f464ca3f35. 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/DEA371254964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a379eac4f9e9ae6c3ebc9209597acc65c330bb4db827594dcb9866b4080ff95. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEA371254965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a39ac487e992413729b95ae97397d9464469ba9b051e5e9ef304dd9018251a5. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEA371254966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88a1d996d07fe51f736e0df6f9f6f81c598640ab94df43a595f0371f3ed5c1d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA371254967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac10571b1e11d4900d7873e7866af3d5983a0c2a1f511a0bf34ef97372bbfc2. 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/DEA371254968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6cdb303292a00edeba61c3b5270ef64ecacee44bdc6a9492ad77ac7a0db2db4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEA371254969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2878bd0525073f8d719dd7cf10a08e896a43b4e3a480b5b776d5be88886dea8. 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/DEA371254970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f267aa965370765ba1a97621f20dd59f54cae87b05bb9dea771ab532cbe30c. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA371254971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692ae080cde6101235cc821679831770f05179104a836cee304d410bf78f9273. 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/DEA371254972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e7af2297808d17d2bbabe20763b09347242dfadfff1a89fa80a541549d8313f. 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/DEA371254973.
Two Worlds II-Theme -The Road is still long
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcf7e8b09b774912d3912d67db5eae5b4b1fa9800038a72910491110b3df943. 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/DEA371254974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae0331ef8f3948791fbfd9f684383aedd79798c9bce9dd31f7a9bec04ba08695. 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/DEA371254976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c308dd093f90a9c712912579c5af71b54af1c4eef495bea2c582450c50f134. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA371254977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e18507c6072d30c38bcbf8ca1ddccb492d2f0f355759cc091764678505241d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA371254978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ffdd88f6c0eb22279eeaa01237a3b185be30e414e17878e947af68d9da230e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA371254979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ceb054cf44f637784aafd8529d828332f96567ee2da03707833542b3fae852. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEA371254980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf47e7fd3dbebd72f450af4a840281d32302f4ea2fb713715020d2a4c397407. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA371254981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f998e3f5cc7f589ddd3467eff89f164c4824cd8b8cc8d2836439e07b16b834. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEA371254982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4def85d8f195bef04dfec23d2de3be7dd901207e65793ae9d3dc7bef494f013. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEA371254983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcf134400443c9ef3f900992e5066ca2b29ec3d4b6e2db2f68ab6a761b43559. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA371254984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9af882591ed9e96b4985476298c3e605c61932f18fdabb54a6af84d735d060. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEA371254985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c7e61e77d5445ab1521ed5dccbd86f00f14c8c584c349f8fb77d026598354b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEA371254986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9abd3e2b4f8784afad597561224ebe391bc21e8fe1e9a555fe69fe353445f1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA371254987.