350px|thumb|Frameworks of LTA-type (left) and FAU-type zeolites (right) Zeolites are a group of several microporous, crystalline aluminosilicate minerals commonly used as commercial adsorbents and cat
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 0xe9e6889588a07d4a7716f2b665fa9f1044290c1f0c48aa094897ff2a68bd26a0. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/230584e0-711e-4649-8616-eb7edbf33da9.json and https://artists.proofprofile.net/proofs/artist/230584e0-711e-4649-8616-eb7edbf33da9.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 0xa107ac669cefb621c7b8c3ddd66dfeac62e418429e2201e9b75f75fe97d3d4e5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZWFE2420576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb567582182413f3177af60a2cae9ea413c7d22e8ea67c75d68b00673dd408900. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZES72548225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f1637cf9834e2904d215a9fc4b7143cd463584e55570c6c53dde9e6e0a50d3. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZMEM2451970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e60a05acc0c616119732a7d64ba2eed1b21770d2d3bc82f2bf2d2a004a38d40. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZES72548226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ad5cd41c484a012244de4cb425e7dd360e4f0b5dd1d861ea891f372bf07d7a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZES72548227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92fe22e70bb008cb00bbecf8f3d2166bc9f702fbdfcebd5e06bf0635a8bc9a7b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZES72548228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5822faf78c2c4f2dc781e7bd1f5d788e0b229c985dcd73447e1ebb97ee053188. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZES72548229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa107ac669cefb621c7b8c3ddd66dfeac62e418429e2201e9b75f75fe97d3d4e5. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZWFE2420576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b35ed783c787d8c1a41c3c43fd922963a4b9c83b4c1ec292f7340a5ff3ebbb1. 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/QZES72548231.