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 0x28627af8ce32fe06b33971f52af39669fe0a64a299b31ee34d6bc61a862a810f. 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/aaf0432a-c036-44d5-a366-dd63c0e98751.json and https://artists.proofprofile.net/proofs/artist/aaf0432a-c036-44d5-a366-dd63c0e98751.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 0x864e127b2c4b272daddb2839eefa96a3bf148624ce08ad82cd94b070c5e7751e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:21:33Z), 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/QZWDW2373834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60abf8a73014af6cc47849f49e62c21897fbf41eabc72ae96c7410a825bf7a34. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZWDW2383484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530ef26bdb395179e488364fdcf496243c5f75713d0df54c9b0f9b69770c93bf. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZYFZ2303380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f6f21a8f588679b53bb7dfe231d901b6a4548b7c8b22b81aa7037db1585801. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZYFZ2321857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db62f9279d2b6ca280c773e65bfd4530c643f6f1bba0838a699a13646985a2f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZYFZ2362041.
Oh Sayang Ngana Ini Bagaimana (Full Bass)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2a04dcb374abe46f03e1d56c9edf4f36a643c8031d768aff6f3f727101f96d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZYFZ2374094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8159c51f9d42ec6a942904c5453925b6569edba5e4e67a14caed0984261afc. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:11:39Z), 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/QZYFZ2387278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131881213592abf3e4d63c1ff67a134ac799a70b000256826838d832bfa07c34. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:11:03Z), 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/QZYFZ2388501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6354e86ca91d958bdb7293aef61d8466fb46ada616638b389b963b925de26803. 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/IDC042511252.