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 0x3a55bd47f10cbd17fa539b9258257077181b961ceedeed15f63b1404ae01efc3. 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/7dcd279b-35d1-45f0-ad9c-6bc09bfd764b.json and https://artists.proofprofile.net/proofs/artist/7dcd279b-35d1-45f0-ad9c-6bc09bfd764b.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 0x6e72da95bcb0e38f4d7d23686bbe3af63e2cc02e1c08a604deec254e2c653684. 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/TCAHP2398362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3fc6187508bf4428b0d6c158d68f2690edd01ee033783c0348f30339c05f12. 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/TCAHJ2364445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57efdb73663347383f83e51f7fc18e65ae05a8b826801f5dc2808ccb18e39c2e. 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/TCAGW2324468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fad4c01dbb0de0ae8ee86d662d62629484ecf962c320ac5c1299b7787ff983. 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/TCAFY2118014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e0edbbddf6dbfe282087266f16844b3578158023610eb75cccba0df5713159. 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/TCAEE1964729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4908593cd369c688701f84dbb191c5499d8615275c10f17c6ddc67507cda1701. 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/TCAED1920874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd89c701f43ca381aebe01de37a6b392532134541bfd82f256cf20c0fc190dcd. 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/TCAEB1931447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee49691722c4d3bd437d95286e991891f88686d3dff98759549cedc578467fda. 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/TCADQ1832871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6585626f3e9d5212ee1f1d8ac911a35b1c93d5b44067103efd15c84d81d0ce31. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCADM1857930.
Frozen Ocean Piracy / Shipwreck (feat. Auxxk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2424acca118c73978787387e12edb7d5bbe38155d69f8c87c426e85accf837df. 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/TCADL1875904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e126065404b406b1779e3b2e3438f63c65f86789dff516195b3a691f9e1ddf0. 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/TCADK1707908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96052e10f36890e5e8ed7d6c45fff9b2c04ce01a4c71a20fd3a37f42c43d935c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCADE1793162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f48a63b971f132789eb1be5eadadff3a07f5bf86c6c671dfb6ed4e93f67230. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCADD1740166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b67060512e3c827a3c3b123f89ebb7c83f2a9393065e69bac6ddd49000b2f6d. 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/TCADA1792661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2672a348a9e38d78fe46e375d7406ad1ab1a9ddf1d137f3bce73947d5486bb. Chain 2 (Bitcoin): anchored in block 957198 (2026-07-08T15:54:54Z), 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/TCADA1792699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c59eaa76571370518b345eadd50031c4760dd6c01b8993ed2825f9c0bf1360c. 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/TCACZ1740969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269b982f6ee31b937b66ab8fef91f17063f255dd4d1edec87828b287a7e84596. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TCACY1790444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57368774834dd70d535a8f565a670ec1c161e2ff1d86156e7f0f0b131b3770d. 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/TCACY1740233.