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 0x756858b6b643d18b82b5566e971b43a75d055677982cbfc2d4ae53b0ca9cc2c0. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f1248fb-cbea-45f1-83a2-b390ead7339d.json and https://artists.proofprofile.net/proofs/artist/6f1248fb-cbea-45f1-83a2-b390ead7339d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ココア&リゼ TVアニメ「ご注文はうさぎですか?」キャラクターソング (2)
ココア&チノ TVアニメ「ご注文はうさぎですか?」キャラクターソング (1)
ご注文はうさぎですか?? キャラクターソングシリーズ (01 ココア)
「ご注文はうさぎですか？？ ～Dear My Sister～」キャラクターソング2
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 0x2ff75fd24561f48bdad1b9989b674c3c89e7a3f44b256c4a577800b5efd30e72. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:57:25Z), 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/JPPI01752890.
ご注文はうさぎですか??キャラクターソロシリーズ (1)
ご注文はうさぎですか ? ? キャラクターソロシリーズ01
ご注文はうさぎですか ? ? バースデイソングシリーズ03
ご注文はうさぎですか??バースデイソングシリーズ (3)
gocyuumonwausagidesuka birthdaysongseries (3)
ご注文はうさぎですか??キャラクターソロシリーズ01
ご注文はうさぎですか??バースデイソングシリーズ03
｢ご注文はうさぎですか？？｣キャラクターソング・セレクションアルバム／order the songs (2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93e3aa6c3c220cfde4bb5d415bd036c6cf046c719e0d6375dbeb2fdefd5ea99. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPPI01650570.
Honjitsu ha makotoni RARIRUREIN - Rearrange
Gochumon ha usagi desuka? Rearrange&Cover Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x767a1b3d33c98bf1bed8d1e27f3a858ba29789690a5ce5d179aabe4d900e99f4. 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/JPPI01650681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05a8425620b00430f0ccf54ea2e7e2e5d900f91b743b2101201c597e4f90783. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/JPPI02050281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22601d3fd008ce599fb4c556be1f41b037cfb7bb400d2a3e3857d25e5f3de17. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/JPPI01551550.
｢ご注文はうさぎですか？？｣デュエットソングアルバム
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c0a754a77e7a0f4c608db6427bd9a790dd869143659b9687ba27caecb386de. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/JPPI01753100.
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 0xf187d80a015ac326496932a8982631c5b32eb29f2a9cde4bf9a3f6866650dd0a. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/JPPI01501171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412d9c14a25e4c62696734a91c04ff1d0ec91164f088acd5acb128b90c2faa65. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/JPPI01752590.