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 0x56095628193b8cc1b98b5dfb4e0e0bd8a2f1a8f4280e1e35f179f4833f935866. 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/d4b059a3-003e-424b-b74d-638ceee7d403.json and https://artists.proofprofile.net/proofs/artist/d4b059a3-003e-424b-b74d-638ceee7d403.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 0x3716683fd24c746be3f632ca422e9f8daab15c7d92d9dec232c358a8b96cb8fa. 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/JPD731300867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd4088b40c2d04351dda810da51c1b8d8597d78971218685ec7b22459f94c6c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/JPD731300868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814fc4c58ee5a32b2e5a1b33544f27fc9af0191844f6c439bf06c782e58eec84. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPD731600985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c732ef1dfc986a6581e7b549f00ad34c5e6edf4c7cd1b72bb370f918f49ac3. 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/JPD731600778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965a2a13f6e3688155eb26b7b0f382da5ed7001c44c158d6e2af802b28098d1b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPD731600979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc4cec9370b6964bdcd41087e6c489f83b68e81d292c5c011aa3a8c5bfe4fde. 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/JPQ891400628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d6093a50bbca598132d2eb4ec747227441544060fa90c2681569ab06dd8a807. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:35:42Z), 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/JPQ891801307.
MochiMochi Sentai Tapiokaiser (feat. Yuge)
もちもち戦隊タピオカイザー (feat. 湯毛)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944813ded218e413ab4d1427d26f8633f411aabad3232f27e53e244c88aa06ae. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/JPKI01916783.
ひげこれ! HIGEDRIVER BEST in KADOKAWA ANISON
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fd4088b40c2d04351dda810da51c1b8d8597d78971218685ec7b22459f94c6c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/JPD731300868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c56cc9f058b236d437d4e335cc0f441c1c2f42185c1130bec77f93b1ae0426. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/JPD731400820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caa8c68a95c43c1379a38ed06c9bfbdbfc68bd3644ae4b178c663d1cb8e575a. 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/JPD731500939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x965a2a13f6e3688155eb26b7b0f382da5ed7001c44c158d6e2af802b28098d1b. 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/JPD731600979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572c26d3572b36a5ae958ce2fbe571b6a86b3cc55e03b987d3ea89b0f21cfae4. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/JPD731700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa077f417f7ca82696fd20c6674f1a3dea9e88e75eb37c730a59dfb6c8bc62ae8. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/JPD731700248.
髭の運転手だった俺が、音声合成ソフトのPになってみた件
From Bearded Driver to Vocal Synth Producer!
ゴルシちゃんの大冒険Ⅱ ORIGINAL SOUNDTRACK (『ウマ娘 プリティーダービー 熱血ハチャメチャ大感謝祭！』より)
ミュージシャンだったあなたへ (feat. 高津戸信幸)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c30b732b420d739d6337b9fe1ec4b3d84e35e7803b29bf4282ecf17817f912. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPQ892500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4db1573863eb4e86b0f31134352b8c57b99c5cb0fad54da729a0dd9436f3475. 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/TCJPS2243669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29712d9e06dbb147db317a9cdf7e7ad6e81503b658f06679436b781123fe001c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRR642101029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c068229c6d1cac98e8ff57f991c0d69624678043be7b0965d0b73512f2dc74. 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/FRR642101030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333e24305d98415c43f200f5d55afea509137c971b883c477a58e95b2f3c509b. 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/FRR642101031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd88ce9a7be05aba01c830677c9c32e6a1826ef4af24ecf351fd4a20393994e. 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/FRR642101032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daf5e896bc80da65150bbe83a783f2c9993fcd39ca39cda2b95191b4ae69cf2. 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/FRR642101033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c7916b0cd18b27a586d997a24f67936cb2a3d19bf36fd1ee97c32884cc1529. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FRR642101034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ab0c13700884db8de031d89289246de1ac2aaf52903d93f4749dd1a72dd276. 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/FRR642101035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2923f3e7d20111436f52395a239f237c8a9eefa2d408cca1785c733861b5bc88. 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/FRR642101036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4ea801f6ae49ed9213aa30e578a445841ec1e9d0c98dc9c0a58b93a9fa1ef0. 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/FRR642101038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d9ba06aebf7608bd9d967b5c5cbfcabc208781a8d7eb96d4049c76e8c3cffa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRR642100367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a003bf8b16299d7fb99cd9ef8d6fa02f2886a505a4734827461c164f581c46. 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/TCJPH1810233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29712d9e06dbb147db317a9cdf7e7ad6e81503b658f06679436b781123fe001c. 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/FRR642101029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c068229c6d1cac98e8ff57f991c0d69624678043be7b0965d0b73512f2dc74. 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/FRR642101030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd88ce9a7be05aba01c830677c9c32e6a1826ef4af24ecf351fd4a20393994e. 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/FRR642101032.
Bokutachi Itsudemo Shuwasshuwa! (feat. Raimukuma & Lemonkuma)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5310bd9e1389598568838d64de558cc1c9fc27f1505b0df6c253b20c9e93d8a8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCJPS2243231.
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
Bokutachi Itsudemo Shuwasshuwa! - Long Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063f987f0bc0052ec0e2a8921a90cadd4d7de18225f4c3479fedd83a8122fd94. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/TCJPS2243292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e4ee8b45056b0b1804b53ee79571f88197a79a3ae1f296d904e729193f2203. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/FRR642101037.