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 0xf51dfb2cf0fab1946b3d41ab402eb814ba1cce49f53fd929a12248ddb0ac9fa6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8f902477-430d-49dc-98c8-359bf6cd3002.json and https://artists.proofprofile.net/proofs/artist/8f902477-430d-49dc-98c8-359bf6cd3002.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
バキ オリジナルサウンドトラック
BAKI Dairaitaisaihen ORIGINAL SOUNDTRACK
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 0xe7a980bcf73d864ea66c52a17dcb276964b67df2bce9df3ab1efe1d3143f8a40. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/JPN222010801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38a6466c2297ac5c8dead9185ef1ed7dfbf890cbb805ecd5b4c0f657bda0f86. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPN222010803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2504a751c48236e04cea149c22d7d66f7d8bd4349f43c7836e7517611f5dd069. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPN222010806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b2f9ecce3aea4f48b7a1c55d6ae06994663d6eb0307e34cae47f5570b84cce. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/JPN222010807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x428dbe3ec827e232df0f7cdb13eef5a83a8a5a6bb311b47619dbcd2b0a2121d4. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:07:23Z), 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/JPN222010809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd57c2eb99483c9dc30bbf2cb618e9636905035eb23b0850c136794be336950. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPN222010810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a2a2b57f3f7598019c845ee247bc8e60de328c25ee2a5f1ffe3da1165a03ab2. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/JPN222010812.
バキ大擂台賽編 オリジナルサウンドトラック
範馬刃牙オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3ebed3cb9138622de27b6f6f08d23e68426ab8c9b47068e64f5300dc70758c. Chain 2 (Bitcoin): anchored in block 957622 (2026-07-11T22:55:42Z), 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/JPN222011001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5eaadbcd88da1c2e32d26b28584b3aa3db63252638c98b2052e3620e04cadb. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:50Z), 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/JPN222011002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93e519cac134eb3c881450f0a47da18feb95a2b899fa247332d76cfdeef6de47. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:46:54Z), 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/JPN222011004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0260ca4eb23e9f433b9f8d288f8264c00d12693d9beafafdd014c15e45187777. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/JPN222011007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067e1c4138ab1779016e19d330b3ba6c2708af6e8f457945fe03e5e9f0bba461. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPN222011009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c5583f551b2c42a6e671fa3295fc022baa66c3c29062d5a23c59ea67b4889f. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/JPN222011012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e712ad5827e4c3883e194b5c029c44317816a790b5f64822f7c2ffb4d3d2b8e. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/JPN222011013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3a4d61d9e4bed2ca92cad6321d56bfc0ccff89bfd82834f10b724c7d0eb18f. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/JPN222011014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5d63cf73957cc3dfb98d6451df57ded42e2aa296cdb23ddc67329dfb6f6f97. 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/JPN222011015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8f25041e2dfef25aeb72194e39eaa59b8797c0317f7df09510df08a2e2c5ad6. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:09:37Z), 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/JPN222011016.
範馬刃牙2期オリジナルサウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60997f2816e5a78d8eacca87600ad78868ba53d4c7b38d40945066145a2729dd. Chain 2 (Bitcoin): anchored in block 957611 (2026-07-11T21:33:50Z), 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/JPN222411607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc1fb823f7d7373454e8392e5439d3b3d5f6715f5a621ceed5130c617a6ac4f2. 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/JPN222411611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7a4d642d0901be97f4688c9515cdf1775dea126e36d18423989facaa47a046. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/JPN222411613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2019c0c43eafa365871875fe21c30e91cd7b60777d7d315140be0a197f198823. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/JPN222411615.
神統記 テオゴニア オリジナル・サウンドトラック
TVアニメ『ブッチギレ』オリジナル・サウンドトラック
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52589a7ebf69895e5258671fcb6635c8d74469e2032e278e9eafd60a83412b5b. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPT592210521.
ハートキャッチプリキュア! オリジナル・サウンドトラック1 プリキュア・サウンド・フォルテウェイブ!!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e9b79a3023be05862b1f2b2fa37b743a0778b14a63871cd8d09734eb751a4f. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/JPD600904487.
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
フレッシュプリキュア! オリジナル・サウンドトラック1 プリキュア・サウンド・サンシャイン!!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a9016b2c365eaf19099e442ebbfb2587b9b7898e803fa9d78569b1d0be71da. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/JPD600904218.