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 0x4a682a6d6e83b764a5de3b40b0af2d3712c8fc7a461987d7c7d5d44b7687a74c. 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/5e55e502-9281-480f-93c2-b45f56ed547f.json and https://artists.proofprofile.net/proofs/artist/5e55e502-9281-480f-93c2-b45f56ed547f.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 0x5a255c0536575f380fa20a38b3067354d7a7d595d3d819960dedf1d1ae86712c. 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/FR2X42441144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ca7f4d621c13f718626b338bb9ed4dd11397b7420aa23d0fe96052529fd289. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:18:49Z), 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/FR59R2465929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1c10d23dea17dff19b2e6c084d1f5529891ffc9fb6d9b12836aafefd49fd9d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/FRX282455443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ce8710de62c3bd4877c6aed457f4a950ceb9ca2810eb8440275dc27474b027. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:06:35Z), 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/FRX282455445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e53a697360716d13ef34f9efca802dc1c23df3bf9d94af1479664ad6ccf097. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRX452476225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaee162543f0449a2146d79bfa1c45048dfbb3eb4b496b07dd05bd20f621e41e. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/DGA0Q2419797.
Montagem Effeminatio Molitia 2 (Hardstyle Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb277b2e80a03ca696d8fe3efb4ed7960e33ef5e11040c89507f87121740ba9d7. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FRX762567047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd266da4004043bda0f60474ac36bd69051f4028a1ed13d4166bf4a3bc9dcb5ee. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:50:53Z), 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/FRX762567048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8da7f9d5167507ea149f5a6062980913f7b4eb828c9b70b6ed21330074a9e3. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/FRX762567049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a637f830309fceafc6d04952e7ddbf4492f18575ba936a48e117e978628174. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/DGA052511140.