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 0xfe060ad730eeba02fa9c5a53a91acb1b0bb8a2093aeeefac3632776139344751. Chain 2 (Bitcoin): anchored in block 953736 (2026-06-15T03:21:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99db0100-f07a-4ad0-9c8d-20f42c5dc16d.json and https://artists.proofprofile.net/proofs/artist/99db0100-f07a-4ad0-9c8d-20f42c5dc16d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Think Like A Palm Tree (Flexible Thinking)
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 0xdff503ae61a6bdc350dc6b3cc029c753a3eab2b67a88493e1581e65b309a8835. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:05:18Z), 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/QZK6J2101890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3284b1bc621939d951720b649801f2d0aa4cf51ec15bb0eccfe7d0009224097. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZK6G2188538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c4cce3720093444f08b5965cf6c38c8f20c4ddbe91098aad19d57faa6b1d4b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZK6F2195032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1452e37e477780db89f485a5a7ca2ce498534d749ddc9de13f85aa560341a6a1. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:05:49Z), 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/QZK6F2174330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263dcbce73b8c8b68cd9995a441e3a9a164ed9d3c980d675382c12d624d2cc46. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/QZMEM2173874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49ef1d96ad9d414363511c44a6f743cf286b1e110022c5c2dcefc787e23b0a4. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:42:57Z), 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/QZDA42213253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2464be69acbbf432c75b6983ac8018cf1cde0bff8eaea0bd636d708fb0f2db5d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:37:56Z), 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/QZNWY2226303.
Flexible Expectations: Disappointment SPOT