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 0xa05a49082796fc13926c8908789a7ee702d1aac2c7223876e1f04ba6f198dfdf. 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/93f0f32f-ddd8-402e-9e38-35bcc497cef7.json and https://artists.proofprofile.net/proofs/artist/93f0f32f-ddd8-402e-9e38-35bcc497cef7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ハーメルンの悪夢 (feat. 初音ミク & 巡音ルカ)
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 0xb247fbc89f74c8217536cba6df104adec377d17a02264c3a05cc2d947dfccaec. 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/TCJPM2028165.
ワンダーガールとラビリンスゲート (feat. 鏡音リン & 鏡音レン)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c77750724db012048ac1cb990f8a0acf1fb1e0112a8a9ad2c529c9fc1acf7c9. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:20:43Z), 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/TCJPM2028186.
アカシックルーレット (feat. 鏡音リン & 初音ミク)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0d5988314b2d3506d201b3016e60b0880913221787c57567a0415e3a667416. 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/TCJPM2028197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778b831232ba531a7456408177d70931cbc438fee2d5eda077c7cba30470388c. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TCJPM2028208.
きゃろるいんわんだぁらんど (feat. GUMI & 初音ミク)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb717469b0964b0f18c05dd2de23fa484244693aa344453aa8615b6f056c5253. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:49:44Z), 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/TCJPM2028218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c330a4fc3eb371c237b0beaab8bc164646625b2c74c593adb158daed809d58. 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/JP92Q2200336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0dcf77d2de2369d357e716baa114766d360caeea4bd115a3bd34078271632b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:41:43Z), 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/JP92Q2200338.
ゲララ～奴隷の子とメデューサの娘～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415e215c0349213e4d2687d9dc419493643084e1b72819b42b2328af14c2a225. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:22:23Z), 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/JP92Q2200318.
ブラックハロウィン〜デス・オア・ダンス〜
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340c3f5506790a3c251bdba9ed5b649429068d9d9e3039f74d7e5b15b2a5c709. 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/JP92Q2200319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3d2391cd9cca125cab0f95e24afde238bee46c47364a3e8194177ba35cc20e. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/JP92Q2200320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef336b7707cd8da24462c43d5174a1f799a2a384cf7c6c2919ab0fd952e98ce. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/JP92Q2200951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4021cdcb418036155db9adc57b097f7c30a91b50eaa7ee63792fea37301f3cf. 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/JP92Q2301522.
復讐を誓ったマイケルの成れの果て
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f32d19f495537284305d57c23f1a66e8483b2f4b3781ee4eab252a6118da9d9. 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/JP92Q2301920.
サングリアル～テンプル騎士団と聖杯伝説～
ハッピーアニマルロケットランチャー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0f4aa6a55919dc20c9db0193182138a29e26e7322a365a8a95490168c11e40. 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/JP92Q2302089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e6ddae3a2a9f0e1f268bb5b0767dd6048ae7a0b27b84b5b3a74b267a8f15a0. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JP92Q2400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c954537b3420776fc9fecfb9164e4561eb935a004569ad1eea270b869d7ad71. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JP92Q2501741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef336b7707cd8da24462c43d5174a1f799a2a384cf7c6c2919ab0fd952e98ce. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JP92Q2200951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8820f3ac00d26379854743d7ce00c185b8eaa9636db7c1e9e2c866a0c3217671. 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/JP92Q2301207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1e6ddae3a2a9f0e1f268bb5b0767dd6048ae7a0b27b84b5b3a74b267a8f15a0. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/JP92Q2400331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d090419d68caa6adc707d4fe6e42884296739ade073f9a102cfa898c7055c8. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:21:32Z), 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/JP92Q2400911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c954537b3420776fc9fecfb9164e4561eb935a004569ad1eea270b869d7ad71. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:55:06Z), 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/JP92Q2501741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a77faef9559b764a5d69153110797a2aa373167f0692df3e30125b19f6c466. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JP92Q2501911.
ブラックハロウィン2～デス・オア・スマイル～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc02de16792591a2698deb612bfd51e7b698d92f83b4c4abfdddacce2ef6341. 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/JPC232300014.