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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695399725f790e6635ac3d66ea965e80ed106321fe4e1bd4eda9fc3fa6dd2b2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7079a24c-c263-4d78-a08b-6fc6b65800dc.json and https://artists.proofprofile.net/proofs/artist/7079a24c-c263-4d78-a08b-6fc6b65800dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mikasa Ackerman (Shingeki No Kyojin Rap)
Naofumi Iwatani (The Rising Of The Shield Hero Rap)
Yuta Okkotsu Rap (La Maldición del Amar)
Hu Tao Trap (La Directora de la Funeraria el Camino)
La Historia de un Mangaka Confinado por una Extraña Chica de Secundaria
177013 (Metamorphosis) Henshin Emergence
Grupo de Estudio Religioso (Sextudy Group Rap)
Pintor Nocturno (La Canción de Nakyum y Seungho Pintor Nocturno Rap)
Yamada X Ichikawa (Boku no Kokoro no Yabai Yatsu Rap)
Mitama-Sama (Kaminaki Sekai No Kami-Sama Katsudō Rap)
Ayanokoji Kiyotaka (Classroom of the Elite Rap)
Dark Gathering Rap (La Noche de los Muertos)
The Duke Of Death And His Maid (Shinigami Bocchan To Kuro Maid Rap)
Zom100 Rap (Mañana Es el Fin del Mundo y No Hay Chamba)
Yarichin Bitch Club Macrorap (El Club de la Fotografía Rap)
Los Globos Colgantes (Junji Ito Maniac Rap)
Rentarou Tiene 100 Novias (100 Kano Rap)
Naoya (Kanojo Mo Kanojo Rap) Girlfriend, Girlfriend Rap
Frieren y Himmel (Sousou No Frieren Rap)
My Gal (Dosanko Gal Wa Namara Menkoi Trap)
Rimuru Tempest (Tensei Shitara Slime Datta Ken Rap)
Lucoa (Kobayashi-San Chi No Maid Dragon Rap)
Hiiragi Utena (Mahou Shoujo Ni Akogarete Rap)
Killing Stalking Rap (Los Cuidados de Oh Sangwoo a Yoon Bum)
Ranger Reject House Rap (Sentai Daishikkaku)
Jiisan Baasan Wakagaeru Rap (El Amor Eterno de Shozo e Ine)
Pumpkin Night Phonk Rap (La Venganza de Naoko Kirino)
La Metamorfosis de Kafka Hibino (Kaiju No.8 Rap)
The Walking Zombie 2 Rap, Pt.2 (Sigo Siendo el Elegido)
Jinx Rap (El Tratamiento de Kim Dan a Joo Jaekyung)
Mysterious Disappearances Rap (Kaii To Otome To Kamikakushi)
Dimensional Seduction (2.5 Jigen No Ririsa Rap)
Elfuda (Elf San Wa Yaserarenai Rap) Plus Sized Elf
Demasiadas Heroinas Perdedoras (Make Hiroin Ga Oosugiru Rap)
Somos Tus Quintillizas (Go Toubun No Hanayome Rap) The Quintessential Quintuplets
Roses And Champagne Rap (El Trato de Caesar y Lee Won)
Arcontes Macrorap (The Gods Of Teyvat) Genshin Impact Rap
Kaoruko Waguri y Rintaro Tsumugi (Kaoru Hana Wa Rin To Saku Rap)
The Owner Of Building Trap (Cuidame Mi Noona)
Bj Alex (Nam Dong-Gyun y Su Streamer Ahn Jiwon)
Beatiful New World Manwha Rap (La Nueva Vida de Ho Sung Lee)
El Amor Es una Ilusion Rap (Park Dojin el Alfa de Kim Hye-Sung)
Lágrimas en las Flores Marchitas Rap (La Canción de Na Hae Soo y Beom Tae Ha)
Mao Mao (Kusuriya No Hitorigoto Rap Funk)
Fatui Macrorap (Somos los Once Heraldos) Genshin Impact Rap
Lin Ling (To Be Hero X Rap) Ser el X [To Be Hero X Dark Trap]
Koichi Haimawari (The Crawler) My Hero Academia Illegals Vigilantes Trap