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 0xece66f8f5a46eefa4c983bbf95248b640f4aa03087cc3f174753aa0902cb57fe. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5a517c9e-92e5-47b6-a87a-84a922f1f90d.json and https://artists.proofprofile.net/proofs/artist/5a517c9e-92e5-47b6-a87a-84a922f1f90d.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 0x308c149a98a94e6f1da0852ad065cd34520d809ed6e9eef20d2027d35c3c9400. 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/QZES62372095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8295bc991825a1cd4ded1079107270128fdfa681dd1b0f2cc2dbe794bf9fa8. 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/QZES62372096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd800f5ee477273632ee2c03c29e92244d7a536e01abb8adb886d1eefc0e96033. 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/QZES62372097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394000babb702a1a688adc16798617a7826f45c943151c69373cb97efe9ae52e. 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/QZES62372099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9879271d3724cb22a152e26dd9cc1e22e67de9ceedd23db9c22d501d9e6e4a7d. 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/QZHN92208441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7e789072d2faa149f4987be0b2f02aa53350181b71cb0369146e735cae7ea2. 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/QZHN92208443.
Aggregate Vanity I: Heretical Hypotheses
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ec09c66c6bca5cfe46a5d6079379f6219b8842136fa7231ec6fe62354d3db8. 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/QZHN92208444.
Aggregate Vanity II: Periodic Absolution
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac471c5371a7648478a906cf938210df3514c6b57642c2d4e54484cc2a7a4635. 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/QZHN92208445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9efb7cbedf5b1d1d3671ec3d7e1c5274747681a257e28035efabe764f63c99. 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/QZK6P2169482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a03973f3dc5362834e191cecccbe612fd7730119fc926c600b03c9dda05a065. 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/QZDA82157929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x779e07f4bb3e68c2492a1f69bb1e5cd9b256f672ae6222e364d9c5bd9a899dcf. 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/QZFZ42193366.