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 0xfc16ffa0e31c6cd24bfc8dc07aef6dba805ed88a0771f85002c20c16461b82a0. 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/f87a3d64-76cf-4312-8778-3b355daef2fc.json and https://artists.proofprofile.net/proofs/artist/f87a3d64-76cf-4312-8778-3b355daef2fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I'll Be Your Hero (From "My Hero Academia")
Ashes on The Fire (Warhammer Titan Theme)
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 0xfde4f308e956200c981d7444b020bfebfbedb7b23af15a39bb78f62842f84069. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:37:48Z), 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/QZGWX2149402.
Set Your Heart Ablaze (From "Demon Slayer: Mugen Train") - Cover Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e877b7ca75244d5ab26019b57920e3fc6711bd8349b41f1e1b47afa22869281. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/QZGWX2223106.
Tanjiro & Inosuke vs Enmu (From "Demon Slayer: Mugen Train") - Cover Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb032ae739facaa8e76543657a0be519cde4d3cdf7c96c2fe5046e827f5b2af28. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/QZGWX2245627.
Attack on Titan Season 4 Epic Collection
Yeagerists Theme (From "Attack on Titan Season 4")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d2de8d2ee65732aba40d172b55f869075959f0b6e85017474b9da8528dd062. 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/QZPJ32117101.
Trailer Music (From "Spider-Man: No Way Home")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9bc928b91631e805fe23aa0dddcb8938bf34d403bf0886e7f93d82a3f05c4b. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/QZPJ32124366.
Attack on Titan Season 4 Epic Collection, Vol. 2
Demon Slayer Season 2 Epic Collection, Vol. 2
Rengoku's Father Theme (From "Demon Slayer Season 2") - Cover Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b5bd8561b928c582fb77cdfb93db3de69b3d34f5dd010c1a3d2916f40fd39b. 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/QZPJ32174411.
God-like Speed / Zenitsu Theme (From "Demon Slayer Season 2") - Cover Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960cdc1822d2dc405bfaa8a9fbf61de1bc6ff716ac5dd81e8055448a4e04cf6d. 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/QZPJ32174409.
Final Battle (Tengen Uzui vs Gyutaro Theme) (From "Demon Slayer Season 2") - Cover Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c884729b4747fe0d6686c974dea34b471f7a18777603e356555d17022f3114c. 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/QZPJ32174413.
Depths of Despair (Attack on Titan Season 4 Part 3 Fan Soundtrack)
Gojo Satoru Hollow Purple Theme (from "Jujutsu Kaisen")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fbe636a5c4258d94a5d651795d11bb18c944dd59b200ef48a31a9391ae4038d. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZPJ32181005.
Monster's Banquet (from "Haikyuu!! - To the Top")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4412c92e026eadfe3e0296179fbbce38903e2ef59070b57b2c3dd6d860a042. 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/QZPJ32181815.
From You, 2.000 Years Ago (From “Attack on Titan Final Season Part 2“)
Counter Attack-Mankind (From “Attack on Titan”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0586ac6b3e5e29e9dd4691fe40bac7c8efd5b54066641bfe4eb825b95bd968c3. 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/QZPJ32193594.
Counter Attack-Mankind No Violins (From “Attack on Titan”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a9d7138fa301d8f656091e686ab57622e6bea85c80e34fa302286d73bd9687. 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/QZPJ32193595.
Counter Attack-Mankind (Acoustic Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ceda573f93f376189451b010bfabdd1c3725c5c08db03cea9575425843339a2. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:06:32Z), 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/QZPJ32193580.
Scar - Bleach: Thousand Year Blood War Opening Theme Cover (TV Size)
Wandenreich Theme (From "Bleach: Thousand Year Blood War")
Wandenreich War Declaration Theme (From "Bleach: Thousand Year Blood War")
Unravel - Epic Cinematic Version (From “Tokyo Ghoul”)
Ichigo vs Sternritter (From "Bleach: Thousand Year Blood War")
Sternritter Battle Theme (From "Bleach: Thousand Year Blood War")
On The Precipice of Defeat (Orchestra Remix) (From "Bleach: Thousand Year Blood War")
Yamamoto's Rage Theme (From "Bleach: Thousand Year Blood War")
Nothing Can Be Explained (TYBW Remix) (From "Bleach: Thousand Year Blood War")
Yhwach Theme (From "Bleach: Thousand Year Blood War")
Nothing Can Be Explained (Instrumental Version) (From "Bleach: Thousand Year Blood War")
Zanka no Tachi Theme (From "Bleach: Thousand Year Blood War")
Unohana Bankai Theme (From "Bleach: Thousand Year Blood War")
Unohana vs Zaraki Theme (From "Bleach: Thousand Year Blood War")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x165fc85f960685679eb2439509bf6929e371e34590e6512b58252538dd498a8c. 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/QZPJ32230263.
Shiba vs White Theme (From "Bleach: Thousand Year Blood War")
Never Meant to Belong (Acoustic Version) (From "Bleach: Thousand Year Blood War")
Hinokami Kagura - Sun Halo Dragon Head Dance Theme
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274f09be488c7e36a2a7ce8888aa461f2430b9761e03d36d000732028400ad0f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZPJ32265280.
The Rumbling in Liberio (From “Attack on Titan Final Season Part 3”)
S-Rank Hunter Theme (From "Solo Levelling")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd18d770c3bcb655d9629405c94622c54b3153bd7c92689e4ff0c4db30bc3778. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZPJ32332134.
Ichibei Theme (From "Bleach: Thousand Year Blood War")
Haikyu!! The Dumpster Battle - Main Theme (Cover Version)