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 0x750ddc87f350e4c2ed5a5c3a3855a52fa3a5aac2ccb48b4c044653378671e449. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55e97b45-ea4e-477d-a12a-e33fc958e356.json and https://artists.proofprofile.net/proofs/artist/55e97b45-ea4e-477d-a12a-e33fc958e356.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 0x3e9a938f8ca9ac64faaac17ded92f7f9bb70e1e5c324ccf0bb05983d7dd2e0d5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNWZ2285339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a707c2501c471c02a075d9ad6f064394fbe869f22db5b9fb30f0532d96d5508. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/QZTAY2293125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb35cb3b44b0fe60818ede45e09a89f23bcd2a2cc7d77a4b6f2cb10d6c24550c. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZES92386140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cb7975619c7ddcfefbe7188e47cca9af6c36131a4193c39eb2f3c6c0d693280. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZMEQ2384137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x239e8e69ae2634845f9e9e7d7f610e44fcd3ac70c26741faae2521e34afd3b64. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:04:33Z), 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/QZTAS2322770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0792ca4158ce762f94f766f9752a4c98f13864320754585b078476864c70c337. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZTB32408809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c188e1798a587ce17dc9d7a6717d70e4262eb78b6aef2ad2b68337fd66d165b. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:39:09Z), 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/QZZ782413949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ddf0360a6fed0a4393616ecabd17a4a2809b1712c67074633913150d8dcc36. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA72550921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a784be5174755abafd0a3f3685456edbddf28a2ecc42d085a85a31658f3782e. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-17T00:13:26Z), 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/QZMEN2578117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f7122caa2211e19c74de4de2b0ccf5b127429b4e84545733a386da7bfa574e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:34:25Z), 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/QZMEN2578116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6096a14c6c14310cd5606d950d9042a07d357a7d7e9c0c9173646550c396a022. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZMEP2512571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe389545a6a104889f00715c0254e9c9871a844f187e3d3793c164d5f6a2c9570. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:29:37Z), 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/QZMEN2578114.
Tony Talks (Dramatic For No Reason Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc096a60edc83738531a9db396eec3d1c59e623c7b7dd158b5bde69f9a304edf6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:00:24Z), 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/QZWFH2551957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db14b8ac4d9a3ff80c6c7e6636b04613d9cf452a1e70c28732ab9eaab75dc11. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:40:52Z), 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/QZZ7N2548704.