1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x79d1a5485ed5aaa397932e47954feac036b50756934f8ab9ed2075de7976ccb6. 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/bfba9fea-fdad-47f5-86a3-57d019643794.json and https://artists.proofprofile.net/proofs/artist/bfba9fea-fdad-47f5-86a3-57d019643794.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 → block OTSBitcoinBlock must exist at that height 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 0xe4d6224c86cc069f5d69be6b5627eb4a2f2a4523a4e8e24115a4fe483d09ebaf. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZ4JJ1654737.
That's Why I'm Not Alone (My Hero Academia)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e30cd0b366095e7662e5341ad2dab6faf1d28ba35ce0ec57306346f21ea3e9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:51:15Z), 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/QM2PV1788396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3ab4625038bc77042f13819e17a38296b25c8861f5943ef21e778a8b789080. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/UST8K1797901.
When Did I Fall in Love? (A Silent Voice)
Saturday Night Question (Recovery of an MMO Junkie OP 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a071484f7b225fc3052c5f914ba0642d4bd78488215d2f9ec7ec602034040a1. 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/QZANL1763007.
Braver (Food Wars! Shokugeki No Soma S3 OP 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa998a8e497945e438f1986dcf980ba89de71e2292b3d3923be87d4ef6946c405. 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/QZAPG1742893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e839b281ce78aadc5d64d9a68288e92c6edf23f3e753f32c9e5f7ca0f1c3b6. 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/QZAPG1742894.
Limit Break X Survivor - Instrumental Version
Clear (Card Captor Sakura Clear Card OP 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8962a1118f6a7461096281407e716d4a8115b401c7cc866922b25826027247d0. 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/QM4DW1831110.
I'll Give You Romance (Dragon Ball ED 1)
Decide (How Not to Summon a Demon Lord OP 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b53ede43434a7678e57e57103400130b669cea8ed0f721c481fdbc6e5c3da3. 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/UST8K1831457.
Another Colony (That Time I Got Reincarnated As a Slime)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda58b8ca65170384a39fc8936a5e0cf81c19e524006d95b109ef4c384be5ba6. 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/QZES81875988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c0bb702aa306e57113f5a0fac6e171966e6593790694adf214791eaae72f8c1. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZES51948269.
Faith (From The Rising of the Shield Hero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x524b6f4aa5762fcee7f9953565f9916325d24cc2898415409d6a6a0ff594fbdc. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZGWW1917003.
Girl's Night Out! (From Isekai Quartet ED)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dd5ee71dea217402062a382a921ac5978b94bafa960cff78edf39bd8f968ab. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZGWW1928983.
Muscles Please! (From "Dumbbell Nan Kilo Moteru?")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751dd67d1177b20b9e4029fc10c0f5d42b63e2e7e69da4d5d55d8d325d489bd7. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:51:08Z), 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/QZGWW1941552.
Change (Steven Universe Movie Extended Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5a2c37a8ee9988ef0943a1e9bd02949129cee9f8de969a43032589b97adc7b. 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/QZGWW1986453.
Isekai Showtime (From "Isekai Quartet S2 OP")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac787481587c5b9646808dd2168efec226dceb447fbb198fcb33ef84e138c40a. 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/QZGWW2044029.
Ponkotsu! Isekai Theater (From "Isekai Quartet ED 2")
Colors Flying High (From "Persona 5 Royal")
Magical Babyrinths! (Welcome to Demon School, Iruma Kun!)
Devil Cutie (From "Welcome to Demon School, Iruma kun!")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71397bf129bda6fefb657fe19e607958659ea2883ddb12c5bc32bf1fa71f7a27. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZGWW2127160.
The Biggest Dreamer (From "Digimon Tamers")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200e5fc2194f45a57b53e09a30dbb2c15e85e42278d9763ffe91732196596756. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZGWW2133547.
Anima (From "SAO Alicization War of Underworld Part II")
Lovely Negotiation (From "Uzaki-Chan Wants To Hang Out!")
Good Morning World (From "Dr. Stone OP 1")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23cfb0feda456d85ea69f83e275fe9b1ab963826540ee1bf4f6e3b3a504f3985. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QZGWX2037924.
Nai Nai (From "Shadows House") [English Cover]
Nai Nai (From "Shadows House") - English Cover
Easy Love (From "Don't Toy With Me, Miss Nagatoro!") [English Version]
Easy Love (From "Don't Toy With Me, Miss Nagatoro!") - English Version
Brand New Diary (From "Slime Diaries") [English Version]
Brand New Diary (From "Slime Diaries") - English Version
Storyteller (From Reincarnated As A Slime S2) [English Version]
Storyteller (From Reincarnated As A Slime S2) - English Version
Footprints (From "My Hero Academia S5") [English Version]
Footprints (From "My Hero Academia S5") - English Version
Love Supreme (From Miss Kobayashi's Dragon Maid S) [English Cover]
Love Supreme (From Miss Kobayashi's Dragon Maid S) - English Cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc539b4b670ac7c13f76b31b29c5d21e28e581375fe433740ac2839231ed826. 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/QZPJ32101717.
A Child Of Evil (From Attack On Titan Final Season)
Stone Ocean (From Jojo's Bizarre Adventure) - English Cover
Straight Ahead [From Teasing Master Takagi S3 OP]
It'll Be Fine [Pokemon Melody English Cover]
Maid With Dragons! [From Miss Kobayashi's Dragon Maid S2 OP]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d213613c223443f530025b4391c148678640d6e6f813411663a0819f0f35c9. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:30:33Z), 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/QZK3Q2200166.
Sun Drenched Days [From My Dress Up Darling OP]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ead677a7c1671375ec1405e5ee51fac958ff8f9449cb8e661699a74967b42ec. 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/QZK3Q2200176.
Giri Giri [From Kaguya-Sama Love Is War]
Comedy [From SpyXFamily] (Full English Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c365343eda94c3d9cee6b83fb48c5ed95bfb881bbc134a6bef3c4844f3c25d8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK3Q2200221.
Where the Wind Blows (From One Piece Red)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400eb75224d1201382804aaa5c1a59023d7aa82ed63e83331e6f3ef4e20f7a2e. 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/QZK3Q2200304.
Guitar, Loneliness and Blue Planet (From Bocchi the Rock!)
Love Crazy (From Don't Toy With Me, Miss Nagatoro 2nd Attack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda6bacd74ad6a82c05728ca2f698eae2b46aeba3ec897c36f9e5a398bf52796d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK3Q2300140.
Kizuna No Kiseki (From Demon Slayer) [English Cover]
Kizuna No Kiseki (From Demon Slayer) - English Cover
Boku Wa (From "The Dangers In My Heart") [English Version]
Boku Wa (From "The Dangers In My Heart") - English Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4b46436b9a7f736d8048aabbc540dbc29d1000b5af5eea96b027d37c2eeb87. 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/QZK3Q2400102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe97a62e4ddf64060d5353a1f187f9c39c5805d4d0536c1fa7b6c3f923f3463. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZK3Q2400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3233ece67a7c2315c3caef7af4342ef71ea3b185b352e105023a350834a9840. 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/QZK3Q2400128.
Tough Girl (From Makeine: Too Many Losing Heroines!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115cd49f298b1233a4183583e7ed300fedbc23842308116181c07d473326a761. 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/QZK3Q2400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1354e811f7ceefae96ef68346befd1837a5dc04dedd513520224de548feaa23. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZK3Q2400319.