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 0x0b1dd508e4bdea3942b8a2b24d592358a8951eb530d34f8427e59893539c704b. 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/581a18e2-17f4-4b4a-97a5-ccd489d1f14f.json and https://artists.proofprofile.net/proofs/artist/581a18e2-17f4-4b4a-97a5-ccd489d1f14f.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 0xc17bf5d8a5ea4a8b05d3713199a15f05d17297076587b9feb61f3f5b24756e06. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USCGH1749978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b76ad1e494233b28228bc3fbae28f2ad77518091ac9082a91ec2f0392984ac. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USL4Q1751380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d394397697ba373ce26f1512c0a5224745899f0c7cc223085c937add9026846. 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/USL4Q1751383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18f0f02d27126282b06da3c7eefecaa9fff8ff6a6defbebd45e4c333710286a6. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USL4Q1751384.
Pokemon Gold & Silver: Piano Recollection
Searching the Lost Woods (From "Hyrule Warriors: Age of Calamity")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa34be3e4973b8b560bed2318d7e030f216ea231d300f87c2ec50722f552ead3. 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/USHM92125095.
Genshin Impact Re-Arrangement Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e5c7142dd88ad2cd58c7b412935bb224ee9d6fca5f588c6cf5b44f2eafb5bd9. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USDY42204099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea405fc87b94987d4699c5e2c83bccab0bfb68c984b2e90da87a7724c79546a7. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USDY42204100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462a2e4ef497928ff6d544dc67c80b5bb464ebe7dbdd2d2d4eaca8ae1aa203e0. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:28:28Z), 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/USDY42204102.
Kujikesou Ni Naru Watashi Wo Sasaete Kudasai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d810bf0194d51bda2abfbc446ee1ab7349148132ebefa3924c2768a34e5700b. 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/USDY42204103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99358a8b3e0bf607a6253f1aad0e0533d1aabd9b4b7475024a2f14e9d14abf43. 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/USDY42204105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be74d5a711964431384edf6272e2098661e4bf0eee01617c537ef8bfaed8940. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:35:36Z), 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/USDY42204106.
Ashes on the Fire (From Attack on Titan)
Chopin: Elegant / Endurance + Resilience
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c1ea45eff4a0f9c725979d5b4529e0583c179919d2a15fb1c0bde0f12238fb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USL4Q2265761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8decec76d02ecf0197a55aa0a7eaf9eeaa14b3ffa5e49f923b8f131fb3e312. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USL4Q2265762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc60ca6f965c65a8f3aeb983b002eadc04daca06d188bde4bbe9a4582d7b2f44e. 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/USL4Q2265763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f9c19edbb48838bde461774c87fe33ca749d643710c9576a88b91c29367c04. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q2265764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d67636be16c6c35f3be7bd543320aa932cacd3d0909e7a4084194e8b07b9a27. 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/USL4Q2265765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe0411fb56169618bcf9ccd1fe6970d90c572a80b9c04cb6198f91b75ed29321. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:44:07Z), 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/USL4Q2265770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc67f8faf93e375e7f343aadaa81f7a7136937ff61ba686beb122f7cc829632d6. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/USL4Q2265771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a23a1d09ff568a0791b6a57e159d5b3f80b9a5b07a904f01133dfd680e5b9b. 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/USL4Q2265772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ae7579565fc755b437eaa07ccbc3931a408d0c26db2893da42a1aa530ec5a4. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T04:56:52Z), 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/USL4Q2265773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed53c0ff400733a7cf567c449381edcb8013eb01a39161c2bd0e32bf8762ded3. 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/USL4Q2265779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c21cd4643ac32f6e884da3b463954d3c9c3ea0945641593d87d82477a18d07. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USL4Q2265781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95f89e6c508993db9dc8c7e6f3f644c40b6a9179357ce01b6c8d300dd69d634e. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/USL4Q2265789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e5918a92f2d4b52258da326f8ff7df2c3111434d63d04e839c465560fffaa3. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q2265795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x540166120e0b14188d7b019afd46f210fdfa03de3b8a377e442e9673377fe838. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q2265798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0988689f32cc3631e1f566987be742e866d8c2ec159edcdf17fbe903d9402e5f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USL4Q2265800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f7149da3fc957713d03b5a1fccf7a8c1665b5cb8f34c968c7d7fdd6f91a8c83. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USL4Q2272047.
My own Ghibli World: Beat of Lo-Fi, Vol.1
Kingdom Hearts: Mastered Piano Collection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cea7803658eff262a1ec07c5dc9b99a5423a3ac1982893c34ed1988faee8b8d. 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/USCGJ2347182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37d588aee9d5a89bc4f82c28ab3dac4771a73d0b61ff3613d2813bddffe1a18. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USCGJ2347193.
Kingdom Hearts: Mastered Orchestral Collection