, also referred to as The Legend of Black Heaven and Kacho-Ōji, is a Japanese anime television series conceptualized by Hiroki Hayashi and produced by Pioneer Corporation, Pioneer LDC Inc., AIC and A.
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 0x18c1bef85f8178214766ff18defdf09b0b73d1102c92cbee74218e2673e341a4. 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/f3646d76-7a3f-4571-b12d-431a3758318e.json and https://artists.proofprofile.net/proofs/artist/f3646d76-7a3f-4571-b12d-431a3758318e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Human Scanner - The 20th Anniversary Compilation
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 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 0xa167660323947b2842409b63d2b821f6e0624e381fb2946d38246bb79dce772b. 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/DEE021300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a2af16fc7a9fb6c07e9b94db099e910b90fd846e673969c22631d86ecce908. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR96X1991050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85bb3e6b1c7022ba9f073afedec933ad0f5bed1568fe0a5730fa527c3228a302. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR96X1991051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa642c17d6d06cbe170e9f96df04bbed8b5e2034a02c4b3a8aac1d2de41518cd9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR96X1991052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5dc55757332b3d33b00b566fb44a22ba6c017c0b84b733a2ceb0a0ee3a7383. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/FR96X1991053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66fc83d667eb9a9d0d19c74f1654052beedc87e992fe51b4ec7a8da825c3bca. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR96X1991054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddcc865788e00c399d681a60b70c9ba1b4fe86614355868c7e20e0cdb5a144cc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ901100950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00197f7d2edff86f0594133bc7bb4c2adcd836ba9e97d910510cfbd4654574b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEZ900900616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7a9588b8a1fdda9a85ee1233eb6f19adf47bceba448caf97befd3ad4118361d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ900900608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef8ee452c82f6b4e7e665d6b4865b12b0af120d73f295141dfd4182e7cc2eb1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEZ900900619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53b038629bf5273ddb143061252dfa62afd3bbe5adb4970a47a2614dd3ca311b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEZ900900610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38887a73ffcf0550ab4aa9c7a9aa8fa9732aefc5e53663087e8bc19db7a9cc1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ900900611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee7b5927be3f122aab31913a532ace9fc0e6ca5629cf07817519623ba1e07f1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ900900623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a12d300dd55f9d3259aefddbac3c6a439373481209b933b92092f3b2874130a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEZ900900595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa348ca61f2cb1375a4b05fe4d6a517f39fb1c90e6e77007219360d6d94e71e97. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEZ900900598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda946ea819822ba11e2153209d7ad012d40e38afbcb9b7b36567888b2e8384f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ900900599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615d943ebce14fcd4a19f93ef64a0462d70d5d71b08c64244308d6ddfa4e3285. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ900900600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cda17559572c286d8e4d303940cb973326a2dfdd8982becdb9ac69ed6538b3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEZ900900601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x648446be5c7e345712a9e592c36ec6eb6358136e60884790f1407212f1e137e0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ900900603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f91587336e6ce66291a24244c278ca4a7f9d31d8cde238da2c743b861369eb. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEZ650807941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe7a07e6d11d39ec1d2715a25782ef5f4dbad5850f7663958c5dc4f7d0afdfaa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEZ900900549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18758a3f42a78b7c12cf05e15889a1b1109fd7944dc1da92ae8271b9112407f8. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEZ901300678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9971118da9b8cff567bd1f5950df8860c311772f1c656f84575ed850f6b108e1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEZ900900433.
Angel Dust (25th Anniversary Deluxe Edition)