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 0x833e8d9cbf270bcb4b314a916303bbc729f1799f9dad3ffd3b69c2f1e8354a9e. Chain 2 (Bitcoin): anchored in block 954002 (2026-06-16T20:47:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3255d70d-2172-479f-8c2c-42ded0fb47d6.json and https://artists.proofprofile.net/proofs/artist/3255d70d-2172-479f-8c2c-42ded0fb47d6.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 0x0c8bf4809032fc852bf3856252829af6212a9ea152fe2b2703fd93f43f022af0. 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/USCGH2211480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5f5495bffa6ad647bc790066c4b30d9e4fb89d9d8cd4090435a2e507b348b2. 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/USCGH2211484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e6e0ecce81e89de1b7a16a94b7a8450660bea19f28563a984493b01e0740eb. 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/USCGH2211487.
Fuck an Apology (I'm Not Sorry for Anything)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76decb30c99aac35eb48a570acf458ace1b55e7fb89bdf73a0780fc7cd9ef145. 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/USCGH2211489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a0419e8274eb1852f85c74a5a6459a17e26f173ae0bb65b4a8d920a3d8dedb. 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/SE6XY2577983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daec8d31298221989856c132e05f5734842719fb48600c2d052da20037660a2. 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/SE6XX2353447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76b650379418afbf8515086b1e948c4bcb50a8ea8e5ebff145f6e97f15bb6fb. 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/SE6XY2577984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04285127a36b9c0b9f5a444dcd34f74018cea7e0be39e3e7d6ea6ec094c8010. 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/SE6XY2577985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80d462a1e312654098110ad0c9d76d4a2ba33a94c162a55df7d3aeb88954389. 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/SE6XY2577986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9e9164dca3859b2873b3d5f4abf6cf31576edcf4f3396d3ac6bce6f24212e4. 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/SE66N2325032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187dcb26c20a22508e6f0334ee7cde9e1fef09a602503799b0a7354cd015a6bf. 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/SE6XY2577987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a9a73b4c59f04f512f4b16164b2ee14a74b3fa11538af5131edc6edbaf672e. 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/SE6XY2577988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea040d2c234899fe493d994dbe86f1b9f6dc0b931f390f196e2b94e885c728e. 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/SE62M2342341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd54a88edd59f00881bdcb6ef60c49bf9d2598272ea2f194a7c52562e89043b4b. 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/SE6XY2577989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc9e9164dca3859b2873b3d5f4abf6cf31576edcf4f3396d3ac6bce6f24212e4. 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/SE66N2325032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ea040d2c234899fe493d994dbe86f1b9f6dc0b931f390f196e2b94e885c728e. 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/SE62M2342341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0daec8d31298221989856c132e05f5734842719fb48600c2d052da20037660a2. 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/SE6XX2353447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25f499c09f06550024a917237f58fde17df1e0231c9f87b61f5533de331df8f. 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/SE5752219085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8b95d0a20f32bdd65c7d2c5220f2d312b03713502a7660aed32c0c58b4958e. 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/SE5752219086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a5c48b4d4d7d0fbd9c6a6ae63e25cbd998cff26de8caa96a5171ed1918fb20. 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/SE6SA2091204.