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 0xe68d9a4751e632f4ea61c46e05970676e58235f52c73d1178b6c6a73e42f4f5a. 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/fba8b653-731f-4992-8eda-a391730d0f9a.json and https://artists.proofprofile.net/proofs/artist/fba8b653-731f-4992-8eda-a391730d0f9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fisherman's Horizon (From "Final Fantasy VIII")
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 0x3087d4d21f5b29a9b8fbc815748a9b714cd50330e969babcff1093f2876c2c58. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZPJ32199567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b235c6dda26c7050192411e8fce149f2077908bed53ddf7dc45e8e9dc1a394d. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZPJ32201749.
Unrequited Love (From "Final Fantasy IX")
Interrupted by Fireworks (From "Final Fantasy VII")
Flowers Blooming in the Church (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39b0a89c3683609a2fa8884eb47114e667cf5ee3f3b60721727411cdc5d06e3. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZPJ32201746.
Song of Memories (From "Final Fantasy IX")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b50db01bc673fb773ed56fcf61d4ac6faa96be31ce5480ea41d1c6912a37410. Chain 2 (Bitcoin): anchored in block 959109 (2026-07-22T09:57:20Z), 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/QZPJ32201744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5cc1d6046e5334a1bc0e9c8d4f71be108ca9818c81106e0f34d9a9299d310e3. 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/QZPJ32203376.
Bittersweet Romance (From "Final Fantasy IX")
Yuna's Determination (From "Final Fantasy X")
Kids Run Through the City (From "Final Fantasy VI")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc976f5ab2b7c7278cea38b300ab3d79c125466e5eb232ad99684e433cd05bab. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPJ32204499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b4149884037c4110912802b0a71ef1c375fc49da353f1d79ac9eee9c2849ec. 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/QZPJ32204496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516f43562c9890ae1986178e25478a4a63ac59c7b7d3197de9889268b4770f4f. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:50:27Z), 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/QZPJ32204502.
Stickerbush Symphony (From "Donkey Kong Country 2")
Tower of the Magi (From "Final Fantasy II")
Hero's Theme (From "Final Fantasy Tactics")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc9711dbbbc813f0b58101a4cb398ca27175da8946b3ea8a9ee6b3d18fdf557. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZPJ32204494.
Melody of Lute (From "Final Fantasy IV")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d7b9e9b0a71b1440ef62895543484d2599c95a151040ff8eee095fce3fa308. 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/QZPJ32204546.
At the End of Time (From "Chrono Trigger")
Calm Before the Storm (From "Final Fantasy X")
You Can Hear the Cry of the Planet (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd059789c28ddb9b6078a3b7ba1b7a596b7058603333c60932d35772e9b6b5aa7. 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/QZPJ32211977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954fbde9ea251e987f676721ce35355a7ecd51eecf572fa562ade895311109f1. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QZPJ32220265.
Burden of Truth (From "Crisis Core: Final Fantasy VII")
Frontier Village ~ Dali (From "Final Fantasy IX")
The Boundless Ocean (From "Final Fantasy III")
Tenderness in the Air (From "Final Fantasy V")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f53890788aa4e85a4932bfbc448f7ebaa94921b4540eb716f7e5c1de4a5e69c. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:48:39Z), 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/QZPJ32256076.
Unforgettable Sorrow (From "Final Fantasy IX")
The Winterlands (From "Octopath Traveler II")
Roses and Wine (From "Final Fantasy VIII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2585c762d808015a567eb1bacfece0d005d9ed4461fd4d95018c038c1d2e62d2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:50:31Z), 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/QZPJ32272900.
Land of Eikons (From "Final Fantasy XVI")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dabfa14ec7de91a25ee84821abcebd4b675fa632f675bae828e78efe2d772a7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZPJ32280287.
Welcome to Our Town (From "Final Fantasy IV")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518d9eb44a5337bdd699291917cb18a13cc9db23e3ea47daa04b7e01caa96a1a. 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/QZPJ32285661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3627e93c3b63105892d8b37602980ec1ced0fe149d05b984a63ea7db0fd80fde. 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/QZPJ32292178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe1af3fb1412c970ba19995bbdb1272315ff7c41c23c77398fb1860a519850e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:20:40Z), 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/QZPJ32304288.
Compression of Time (From "Final Fantasy VIII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2a2ce1ece20372112bc5503244d9c88caed58afb73b93e8024eade8094f591. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZPJ32340361.
Daguerreo, the Hermit's Library (From "Final Fantasy IX")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd625bd2a1eceee62c2bcb74634206d177de7e9f6a99ad60446cba0237bff368. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZPJ32358437.
Balamb Garden (From "Final Fantasy VIII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8354d9aaa9c1b19493667ff291eda8b7e08e7a3df1fcaa681bf3f5e0577d10e6. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZPJ32366289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268d03c2f1c10c51201d81dd8422bf5bbc42e07e4c1d5d5d6e065ee5b905c102. 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/QZPJ32376543.
Crossing Those Hills (From "Final Fantasy IX")
Corridors of Time (From "Chrono Trigger")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f83d12bc7d80f875cdff294332156f11d85f3cbd949a9a8a9b3f7d38faccfd5. 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/QZPJ32392015.
A Place to Call Home (From "Final Fantasy IX")
Final Fantasy IX Harp Collections, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590b2d9b1c386a1d92603d568ad15d098f2895b50494f8db26c3955a6ef1c155. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZPJ32412092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6481d92ca7aa848ad1ce66cbbaaf377172c8081cb2c3dc5510a7f8b430f686. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:05:29Z), 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/QZPJ32412093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12896e6279b97714798769fef07b7b75c536144fa27fb2f415a9ef8cbbe80ac. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZPJ32272901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x795b56a157ad0a116a60c996ab08735e41dfa3a5b6025da6592dea6ca78b3265. 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/QZPJ32260716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5766cf4cd4a1f1d7c2b23ec0bbb059c1898f9ca54c8cca38516066bc535adf19. 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/QZPJ32412095.
Find Your Way (From "Final Fantasy VIII")
In a Snow-Bound Land (From "Donkey Kong Country 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf50e688cb5b8fbb4aa3e07719f39e30b3494d70fd2d72b3fc65551c2200d22. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZPJ32427272.
Dear to the Heart (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a94521aaf348ef8c877cf2f3ba69e198c81f3594484a9ed0aa52fe76be2a2b. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZPJ32450894.
Wandering Flame (From "Final Fantasy X")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d63778395619e5bbcc6a54db56649a1a4319322541055eb750368110151ba39. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZPJ32480459.
Fragments of Memories (From "Final Fantasy VIII")
Final Fantasy Relaxing Harp Music, Vol. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954fbde9ea251e987f676721ce35355a7ecd51eecf572fa562ade895311109f1. Chain 2 (Bitcoin): anchored in block 958861 (2026-07-20T10:02:52Z), 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/QZPJ32220265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0463d71824ffcd0079e947caf2f771ceaffe41ba33ed9feeb8b4a343c2f99f79. 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/QZPJ32498137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a291e6f71db852b917ac84c92a5e64a84d35d67876fbe710d3fa7f79155f51. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPJ32498139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8225e914eb2768ba4522a30c270394a03aa0400719c1ec7566037b60588393e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPJ32498140.
Song of Healing (From "The Legend of Zelda: Majora's Mask")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f1ae12966f6f12bba6855514f336da3f64fbad647e5fb24038e4129f03c40c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:21:06Z), 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/QZPJ32476473.
Anxious Heart (From "Final Fantasy VII")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3a7b58df641c9aa9d3bfddb8ba6b75c99b9e0530526a281e7c5e30b84b4d18. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZPJ32509085.
Character Creation (From "Final Fantasy Tactics")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb9e2931830c6daea7a2ac36e93a459bf89a49e882581cf041c3e318fcb9a8f. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZPJ32513453.
Succession of Witches (From "Final Fantasy VIII")
Final Fantasy VIII Harp Collections, Vol. 1