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 0x77c879852ad464a1919bccd98d7d1ac8a1e4e70b7732809621e929e9b7f1bc2d. 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/27a890bf-d16e-47a9-bfe9-2aea97cea651.json and https://artists.proofprofile.net/proofs/artist/27a890bf-d16e-47a9-bfe9-2aea97cea651.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 → 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 0x78d623befd3f21d24c4a4a96a90c44cf4e53cca718398fe28d742be0417afacc. 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/QZHZ52195405.
A Carta 4 (Takemichi, Chopper, Tanjiro e Shu Ouma)
Guerreiras - Erza, Rukia, Mikasa e Hancock
A Carta 5 (Subaru, Obito, Jintan e Shinji)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef75ce0cec62fb52f0ae37a5a505e0bdff75932060c2ba057399c3660a2070ec. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZW9L2235184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a942629f019bd7c4e7d9ca988c48aa93dd5e4588a43be995499d6b26f3723ee. 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/QZW9N2204841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca081d122576ca382c037c5041cb9c6efafe0d9f97415f460066000a96b2b86. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/US7VG2325017.
Egoismo vs Sorte (Isagi Yoichi x Itoshi Rin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1137ce3b2b07f36cb30aacc5757d974836c1e64f5c23ddc3221c1f5eaaf8342a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/QZWBE2406172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2afae485c4bee6f35b29872842c6166ef7672d71d5b3e55a13134d72482db276. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZYHM2300149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203f19f48b37f12116ab20a6bf4addbcc58c6a95a2f263b465437b6c738c66c2. 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/QZYHM2326412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3758c88fcefb49a79895dc362148d2b33c774191138258f43c1775e1d505b026. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QZYHM2368253.
Piseiro dos Feiticeiros Jujutsu - Boiadeira em Shibuya
Piseiro do Sukuna - Malevolente (Jujutsu Kaisen)
Carta 7 (Thorfinn, Guts, Hyakkimaru e Miyamoto Musashi)
Piseiro das Maldições - Rodeio Além de Shibuya
Piseiro do Itadori e Todou - Besto Friendo (Jujutsu Kaisen)
Piseiro do Takaba - Boiada do Palhaço (Jujutsu Kaisen)
Piseiro do Megumi - Sombras (Jujutsu Kaisen)
Arrocha do Apolo - Iluminação (Shuumatsu no Valkyrie)
Piseiro do Adão - Pic@ Primordial (Hazbin Hotel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1331e670a8ae2d746691bc03db835c3b0dcb16bed98caf1fdd114ce1011dec03. 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/QZYHM2411199.
Piseiro dos Shichibukais - Lordes do Mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce267d38b831200c024c84690fa4928472d98e35bfb44ee4f2c6eb808efb774. 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/QZYHM2412415.
Redefinindo o Mistério - DarkScooby (Scooby doo AU)
Piseiro dos Luas Superiores - Boteco Infinito
Piseiro do Hakari - Jackpot (Jujutsu Kaisen)
Piseiro do Yuta e Rika - Maldição do Amor (Jujutsu Kaisen)
Piseiro dos Hashiras - Rodeio dos Pilares
Modo Berserk - BloodTrix PT2 (Ben 10 AU)
Piseiro do Toji - Rodeio de Balas (Jujutsu Kaisen)
Piseiro da Nobara - Martelada (Jujutsu Kaisen)
Mórbida Canção - Vinil Usado (Junji ito)
Piseiro do Tanjiro, Zenitsu e Inosuke - Boiadeira Lunar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3612a11796eff607a603369257c7a15aadc1d6fe90decfc333b1e55e0657481. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZYHM2423983.
Piseiro do Tomioka - Correnteza do Amor (Kimetsu no Yaiba)
Evolução Insaciável - Sonic Shin Tapes (Sonic AU)
Piseiro da Maki - Sem Energia (Jujutsu Kaisen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38f5c9d9461e37de4b335c74093746441263460d484a1bdc0e48492dc4c0dc6. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZYHM2425990.
Piseiro de Dan Da Dan - Rodeio Paranormal
Piseiro do Jogo do Abate - RINHA EM SHIBUYA (Jujutsu Kaisen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf852436d3693f29beed5a1c8fa68c44cc4047c9fdd8e503b414ea6847290eb5b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZYHM2429129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x426abbbcde1cc71824069b1cdf15a7f02eeb55e7779f05337b58c552a706c4f5. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZYHM2500156.
Piseiro do Sung Jin Woo - Sombras do Boiadeiro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611c44e9dd674257a00f20859c6405c5df8f4ee3891a2227793a315145ec2ee7. 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/QZYHM2502803.
Piseiro do Itadori - Pisadinha Divergente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700105fe6715c3f28e68b73af0b11f3ad580716f0e730ddcc33b8a4d41e9b15d. 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/QZYHM2503633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23dae83caf7b6cf16bf00e503e1114880c0724670ebc2727a189f4463c94d59a. 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/QZYHM2504438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ce9eb365fa116b79ca376f4bec6b84b314ca3d8c96759b3d8c41913313ee2e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/QZYHM2504810.
Piseiro dos Touros Negros - Esquadrão da Boiadeira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78bf986385ce6ac56545dce8a1466d38d818f1d687c5754974d586329d8461d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:29:07Z), 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/QZYHM2505264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991bb151db3495eade160e2015a81e0775d0463d6db0c65b47c8ca6c6ad05c3f. 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/QZYHM2506816.
Piseiro da Akatsuki - Boiadeira dos Renegados
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e80b9c52a0f8d3d5ab46902e02a46818d865e4937c62ea95c444bf4feab96d5. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZYHM2507843.
Piseiro dos Imperadores - Isagi, Kaiser e Barou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810ea6c29f2d336c033284838c2214a301b1673afe27f7a9e66e42cd1a7e2314. 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/QZYHM2508462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660ffe144fab98eabe6333452276051e0e115aff248efa6e194733d95cf8518d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZYHM2508813.