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 0x898875628d73877eaf85cb101c5aa520c5c3f76a9d52ef85fe7fb165265330ba. 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/1761061a-e54b-4bd7-ba5c-2ea10e6f6311.json and https://artists.proofprofile.net/proofs/artist/1761061a-e54b-4bd7-ba5c-2ea10e6f6311.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Jingo Jungle (From "Saga of Tanya the Evil")
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 0x3cbfb9b57731c62a74e516867098ad2f8f4e362bbc442ce689cf7cef2ab35db2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/UST8K1792835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5251c4b6fa5acb72b26d4cdaf2fbc511cabd498e112bcf15bb48c256b67a52c3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZES61816756.
Aozora no Rhapsody (From "Miss Kobayashi's Dragon Maid")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5574399bee454739967aab4119a8a8bd65b68206ac5b421f023fdbd5a78ceb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMPKX1886681.
Gurenge (From "Demon Slayer: Kimetsu no Yaiba")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a25c79ddfd18c08fefee256cf271274d0a2f12c5b524e6666ec99b30db0374. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ22B2094032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861116f80f955b8bf45fee6f2dc48e1c9724455c0c70be61dd5a9216b3d9f769. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QM2PV1791451.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
You Only Live Once (From "Yuri!!! on Ice")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9539cb9447b8de1fb419f9393bdb5fb11a44a965a497c4404b8c58b3fedabb. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/QZ9Y21795998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30737efc552955476ac21da388eef6bd23170409e04ea0a09a0bf40cac5055e4. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZES51941088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf37632a998905a71c03582875f1484fa229e873e092188c7b75976c8fa0ecb0e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZDA81936813.
Kyouran Hey Kids!! (From "Noragami Aragoto")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba816fd46749cc0082bf95454349753de14eb38984d91bbe3567ad605da644c0. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZGWW1964466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abc5bcd90aaed687314cd0fe52ac8f3d7f89cbde531500066456680bee67b81. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZGWW1964467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474983c2f8bb2415caa3508dc53dfc5f849103e43c2323d05b4691c379b82520. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZGWW1964468.
SOULSOUP (from "Spy x Family Code: White")
Bling-Bang-Bang-Born (From "Mashle") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ae84d071f88b9db198420ea025a9073724a68cba931cebe18e1c75b1cac2be. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32344003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a4edc0a32cb7b5176b2d250d052d1b5582db3cc59cb5befd161add24aa601a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZES82494241.
Us!! (from "One Piece: Egghead Arc") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c195e71cd56e9eb9072e1c59c508411ee222f73e2f5ba4c28930fd76b966304. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPJ32337210.
Haru (from "Frieren: Beyond Journey's End") TV-Size
Be a flower (from "The Apothecary Diaries") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb245d1d4bf8cd335f32727cdfc4ffdb9e6d7c9e715784a760abf2abb849aad. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32328326.
Todome no ichigeki (from "Spy x Family") TV-Size
White Noise (from "Tokyo Revengers") TV-Size
SPECIALZ (from "Jujutsu Kaisen") Full Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53293ff67ce522821fdc8b1a1f6085ec9c8b0018edcc95843ca73c6f4bd61ec. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZPJ32317059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4f491eb82b3582e80a080ee20ad0e45965c5d1f353dd33e93ae536e00c8ef3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZWFE2308127.
YUUSHA (from "Frieren: Beyond Journey's End") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb07a35fd299a89909b6559c71889443abc682aef0c8346a1dd89d4c86a9b7237. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZPJ32308991.
Hollow Hunger (from "Overlord IV") TV-Size
Song of the Dead (from "Zom 100") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39256373cb49143a03808b0c87fe154eccced51fd891a50c017a247ab6842df4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32303027.
more than words (from "Jujutsu Kaisen") TV-Size
Happiness of the Dead (from "Zom 100") TV-Size
Ao no Sumika (from "Jujutsu Kaisen") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0158e10efb888e0c21dac3d69ed231ec2d309ca1d43eaba4766ed306bbd2b5cd. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/QZPJ32300086.
SPECIALZ (from "Jujutsu Kaisen") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x912d2dd17736504556eae25a8f64dc38f3200b4e49a5db0d2586af033de3b88d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZPJ32297519.
Kizuna no Kiseki (from "Demon Slayer") TV-Size
Fly in the Freedom (from "Sonic Adventure 2")
Bokurano (from "My Hero Academia") TV-Size
Sugar Song to Bitter Step (from "Blood Blockade Battlefront") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8eb05fe8c66061604117c267ab0c18347eceb574bf841bf41fe76288ddf94c2e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZPJ32274311.
Mixed Nuts (from "Spy x Family") TV-Size
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6668a31ebd1382491c56ba4a6ca205f8d1534743628718f4c5d171000e62c5a6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZPJ32271744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09447c31fe984ec7b139e09ecaa9146d2cc7cd64d154fc52dd84cc6b1cfdba42. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZPJ32273978.
Calling (from "Spider-Man: Across the Spider-Verse")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b64352a9ecdd7f644ed8298cdc397764c11769ab4c78161a71b23ab9efe74f. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZPJ32267130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea89c9cab0fb5d8610b475288a3504490de68b088b5443930e867ab81bfff719. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZPJ32266189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40300506a1477be218a3c53ab536edcc2bba61d4b6beff86bea6761a7b76031. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZPJ32268916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdab862d4124575a842896e559e5280ab3a778b86829fdb15d9e14bb21752ed34. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZPJ32264506.
Higurashi no Naku koro ni (from "When They Cry")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674a43f6d1beae31023bea063690ff4dd377a74c936c5851e1a087650f393782. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZPJ32263614.
Motteke! Sailor Fuku (from "Lucky Star")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8898239cf98aed8a9eb08469a5996814f97a9dcae0a7fecb14215e6dc3bc4e99. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWY2018622.
I Believe - King Side (from "Persona 5: The Royal") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3295765277596eea2a4fde9402ed67740067993f91509e4e6af6b6936058f40. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZ6K42100155.
The Whims of Fate - King Side (from "Persona 5") - Metal Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6e76b3b14f6e903c98368923da28d16d6f4afee72217742dc1b414d1e61e8b. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZ6K42100150.