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 0x6063554396dea99c421aab7445f4919da33b9539691ab7c9580b5d799cecfac3. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49379e45-f5d6-4cd2-bb77-8f23a1b0b112.json and https://artists.proofprofile.net/proofs/artist/49379e45-f5d6-4cd2-bb77-8f23a1b0b112.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Opening - Bombing Mission (From "Final Fantasy VII")
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 0x9c24468271f8dddc2012935b4f95b79e81230241be275b61116551f75394f3d9. 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/QZGWW2029349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66a88153c2dc8cfa69b14fb36a238c243dfc2fc02023b84ef76052987a4ddef. 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/QZGWW2029352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38123264f0256a8b39f9d78b8dc576dea826a5c875fecb95f2ec733ca43296a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:40:57Z), 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/QZGWW2029353.
Those Chosen by the Planet / Main Theme (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba3e892d92b4801202b6b4644067d67c6340afec448031c39928e1c4296a342. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGWW2029355.
Let the Battles Begin! (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc77f623aaf87dea32673bd4c1d4357ec0181442c5977ac01a5c1025773a72a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:26:35Z), 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/QZGWW2029356.
In Search of the Man in Black (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2660e7aa2e000c5ea492f2269524e22c5ea2653ffc27feec8d95e6c91f4005c8. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/QZGWW2029357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5ce63081993482b783f0176f86a7fb2f99e831500a6587a0078d4467eedd996. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/QZGWW2029358.
Listen to the Cries of the Planet (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0453889d60aa93578e62206c3619fa8970008decf80d6e90dc1fc9d5928e5c. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/QZGWW2029359.
One-Winged Angel (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dca975f550ba16f9d8d83c894ef51ed36503dbfffc47e5780f2baabf4c4431d. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZGWW2029361.
Torn from the Heavens (from "Final Fantasy XIV")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceb50b34fac418b9af5b7babe3bbedf784fb32867898872a2ac99e1446b297c. 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/QZPJ32451053.
Tower of the Magi (from "Final Fantasy II")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe187cf9da6ad566ca9413f241ccab0f5fe22f34c68c8b11b5b230ed0a7efb65c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZPJ32451057.
Combat (from "Crisis Core-Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ceb50b34fac418b9af5b7babe3bbedf784fb32867898872a2ac99e1446b297c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZPJ32451053.
Swords of Fury (from "Final Fantasy IX")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a3712ef70b7b747fd544c1c679cfe4570abe647740154b77f5a0cc208cf667d. 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/QZPJ32451054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6ce04e84e2ca1eb8129c54f2a50c96b6822beb856c6eec7d5fa08d28b0088b. 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/QZPJ32451056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe187cf9da6ad566ca9413f241ccab0f5fe22f34c68c8b11b5b230ed0a7efb65c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZPJ32451057.
Lunatic Pandora (from "Final Fantasy VIII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62e5000575f4a1b6a9a29b2ea64db7255ad5e2457304d6c3239cfd51426211d. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPJ32451058.