thumb|283x283px|alt=Twin Wild|From left to right: Edward Thomas, David Cuzner, Imran Mair, Richard Hutchison. Twin Wild is a British four-piece alternative rock band. Formed in 2012, the band is made
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 0xada92822ada3420a0ac233413c7c5623de8daba88c1b8b55f1e61155d01988b6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1db62947-a630-444b-81f1-5818d92527f0.json and https://artists.proofprofile.net/proofs/artist/1db62947-a630-444b-81f1-5818d92527f0.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 0x70f7bb5d813e500e08346e65c032cbfea14f893413dcbb21123757247d7d1b94. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/GBENL1601685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b73695711301a90a4e21b91e3bbc885ea1d88d94a18ee857f813496116cd1b. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/GBENL1601720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61a65bb68accfa7937e809d8bac8697b2a6999d1aedd17925785d7cfd437b704. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBENL1701886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8626b75ec0b0ebcb5d29b39c594d0fbc363259e920d796be4867922d07a516dc. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBENL1701921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94baf4e50dbf90b7f348b5536a7213fab55dff07ce9e3b29a58145a37d2ddabb. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBENL1701922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94baf4e50dbf90b7f348b5536a7213fab55dff07ce9e3b29a58145a37d2ddabb. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GBENL1701922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8118f5d6011947318ae498ee93e5328d4c9b8f1789f641ae1f5ea6a4af7a4b. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZ8GX1700113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4a63ef9cc3efed63a267db01e0e39294b3935cc45903babaf7d64f067e5aba. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZ8GX1700129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0277c18a9ad07878fbcc2efa77aa3b0258a0c86063043281b5be69ad2e099f75. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/QZ8GX1700130.