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 0x5d55afab9a3a99e3634e159d6a16f94aa4306bf6eb6a5781b363209105380b5c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d51a973b-7973-4546-bdd9-2b8d067f6184.json and https://artists.proofprofile.net/proofs/artist/d51a973b-7973-4546-bdd9-2b8d067f6184.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cry Baby (Tokyo Revengers OP) [En Español]
No.1 (Boku No Hero Academia OP) [En Español]
Seikai Fuseikai (From "The Misfit of Demon King Academy OP") [En Español]
Cinderella (Komi Can't Communicate OP) [En Español]
The Rumbling (Attack on Titan OP) [Tv Size en Español]
San San Days (My Dress-Up Darling OP) [Cover en Español]
The Rumbling (From "Attack on Titan OP") [En Español]
Ichizu (from "Jujutsu Kaisen 0") [Cover en Español]
Ichizu (from "Jujutsu Kaisen 0") - Cover en Español
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 0x8830e8f6e0e38799a5a41ef08897924a27e7a8f74b84470f1670967500cb968a. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:26:02Z), 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/QZPJ32157456.
Bring Back (from "Tate no Yuusha no Nariagari") [Cover en Español]
Mixed Nuts / Comedy (From "Spy × Family")
Bloody Power Fame (from "Bastard!!") [Cover en Español]
Daten (from "Call of the Night") [Cover en Español]
Himitsu Koi Gokoro (from "Kanojo Okarishimasu") [En Español]
STORY (from "Isekai Ojisan") [Versión en Español]
Souvenir (from "Spy × Family") [Versión en Español]
Alive / Tower of Flower (from "Lycoris Recoil") [Versión en Español]
Chitty Chitty Bang Bang (from "Paripi Koumei") [Versión en Español]
Kick Back (from "Chainsaw Man") [Cover acústico en Español]
Feliz Quiero Sentirme (Música de "Chainsaw Man")
Tablet (from "Chainsaw Man") - Tv Size en Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222c68537ff16e8faecba88160862d5ad75bb13f32f22c9ed259fd22f230f6aa. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:34:35Z), 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/QZPJ32228438.
All Kinds of Kisses (from "Chainsaw Man") [En Español]
Seien (from "The Misfit of Demon King Academy") [En Español]
Rewrite (from "Full Metal Alchemist") [En Español]
Time Left (from "Chainsaw Man") [Versión en Español]
White Noise (from "Tokyo Revengers") [En Español]
Gradation (from "Loving Yamada at LV999!") [En Español]
Paradox (from "Vinland Saga") [En Español]
Fight Song (from "Chainsaw Man") [En Español]
Fight Song (from "Chainsaw Man") - En Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5152c89d405a20830ae8a0e25afb98782bd28100f6a2709142c43c7b45b9b48. Chain 2 (Bitcoin): anchored in block 958680 (2026-07-19T06:04:14Z), 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/QZPJ32267183.
Under the Tree (from "Attack on Titan") [En Español]
Rendezvous (from "Chainsaw Man") [En Español]
Kizuna no Kiseki (from "Demon Slayer") [En Español]
Ao no Sumika (from "Jujutsu Kaisen") [En Español]
Spiral (from "Mushoku Tensei") [En Español]
Song of the Dead (from "ZOM 100: Bucket list of the Dead") [En Español]
More Than Words (from "Jujutsu Kaisen") [En Español]
Say My Name (from "Tokyo Revengers") [En Español]
Yuusha / Anytime Anywhere (from "Sousou no Frieren") [En Español]
Yuusha (from "Sousou no Frieren") - En Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0521d0b5dfc363a9aed04c3332b83c0931d442f1a71952340f7c087042e75c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZPJ32327148.
Anytime Anywhere (from "Sousou no Frieren") - En Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dfab9d9725ec66531a101e29d95201873dd1a0583e2ea1e59f318e358c6fefc. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZPJ32327149.
Haru (from "Sousou no Frieren") [En Español]
Haru (from "Sousou no Frieren") - En Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0d6021717a7c9c889825d67d0bcda7d67e45e002aa02ecc0e54e2e67fc61ca. 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/QZPJ32330617.
Bling-Bang-Bang-Born (from "Mashle") [En Español]
Cure (from "The Wrong Way to Use Healing Magic") [En Español]
Sesame (from "Bucchigiri?!") [En Español]
Sayonara Moon Town (from "Boruto: Naruto Next Generations") [En Español]
Vengeance (From "Ninja Kamui") [En Español]
On the Frontline (From "Mushoku Tensei") [En Español]
On the Frontline (From "Mushoku Tensei") - En Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c35196a3febeac6a86cf6dac1c38fcfa0e336108aa08e4e4a3db8992422ee4. 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/QZPJ32358073.
Nobody (from "Kaiju No. 8") [En Español]
Poison (from "Hazbin Hotel") [Español Latino]
Mugen (from "Demon Slayer") [En Español]
Mugen (from "Demon Slayer") - En Español
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c379eaf3a0544b8aa77f04e9a6e5afc78d59e97c6c95d1237ca898da2434dd. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZPJ32383554.
Utopia (from "Tsukimichi -Moonlit Fantasy-") [Español Latino]
Utopia (from "Tsukimichi -Moonlit Fantasy-") - Español Latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad64b04d4b61bb924a3e96e25c49d161b64216321d85bbf9dd8bd37b6d2f3c. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZPJ32390827.
Curtain Call (from "My Hero Academia") [Español Latino]
Curtain Call (from "My Hero Academia") - Español Latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x840f448e50056771956343142945798c3fd3bbc52eca8bd2a108a3c81ea8a54a. 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/QZPJ32401486.
Otonoke (from "DanDaDan)" [En Español Latino]
RUN SAKAMOTO RUN (from "Sakamoto Days") [Español Latino]
The Eye (from "Link Click") [Español Latino]
Reawaker (from "Solo Leveling") [En Español Latino]
Reawaker (from "Solo Leveling") - En Español Latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69f8fff4c66b4e997bd45ccb9c1ec928f981b0f9b74cf6591b5bb7a2dda993c. 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/QZPJ32466484.
Kusushiki (from "The Apothecary Diaries") [Español Latino]
Kusushiki (from "The Apothecary Diaries") - Español Latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffdb4dcc564979dec38637e36d932e06f94b4ce1a9e01e9dbe1f745d26c9be7e. 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/QZPJ32471353.
Ao no Sumika (Acoustic ver.) [Español Latino]
Inertia (from "To Be Hero X") [Español Latino]
Inertia (from "To Be Hero X") - Español Latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7682e11c02278ddcef69b10cccecf49dd6ac5e5361552b872531574427d9d7f8. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZPJ32470542.
The World (from "Death Note") [Español Latino]
On the Way (from "DanDaDan") [Español Latino]
Mirage (from "Call of the Night") [Español Latino]
Doukashiteru (from "DanDaDan") [Español Latino]
You can't run from yourself (from "Kaiju No.8") [Español Latino]
Shine in the Cruel Night (from "Demon Slayer: Infinity Castle") [Español Latino]
Shine in the Cruel Night (from "Demon Slayer: Infinity Castle") - Español Latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aaae6528241bef331146073800df58228ee516e7caaefbfcec2f0653a8a34bb. 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/QZPJ32512850.
IRIS OUT (from "Chainsaw Man - the Movie: Reze Arc") [Español Latino]
IRIS OUT (from "Chainsaw Man - the Movie: Reze Arc") - Español Latino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee75ab26494132b543c6400f0c1219c7fb72609aa78ffc1b6f5921e9d14cfc91. 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/QZPJ32515761.