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 0x50dc5e4484d9602ced21777c1e3f5d5553a40338fd4bdb13275ab87c5be15087. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09dccbf7-c036-43a3-ad49-4933db3f96ee.json and https://artists.proofprofile.net/proofs/artist/09dccbf7-c036-43a3-ad49-4933db3f96ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Stay Down 2 Come Up, Vol. 1 (#MeAginstthaWorld)
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 0xeec1a32c1752b56e3663fcf35a7bd4de97372f117cdbb52c31881e1da449cead. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/QZES82560882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d1c6f01366c93a15ecb0fd135c5e502aa7fba57fbb545a7581bc29879279df. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:48Z), 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/QZK6H2512734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83586ec7eb74d6d0ea8fc8914d693676114950f7a0d8b7bfd9b66fba972e6c02. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:30:33Z), 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/QZK6H2512736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3dedcedc38027c753cee172ddfbec183e20861e77d9e5b2f020d0d6b5d92b0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZK6H2512737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea8169b04dd50fa916faecb1a99947bd0a876cecaf3686fead4c8175f1bfd9a. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QZMEQ2594137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eb0dbcf225b452212014de1758cd1f24d114de2c60ed81aaca52ae41c926aa2. 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/QZMEQ2594138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe746f59ca17a4766a66ac88d2f473b5c6ec526ae12285f1bb6bbaa76e99dbe5. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZMEQ2594139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6866bdfdd0bfaff1206cbd674b960cb7de6fc41245eb8e740b7e696082b2654a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/QZMEQ2594140.