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 0xa55ce4e5f4fab588b3b6b1e11f381231b91abf7bfa63373263e7642cba438a7b. 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/5dcbe0bc-5d85-49de-977f-fdf8ec185a97.json and https://artists.proofprofile.net/proofs/artist/5dcbe0bc-5d85-49de-977f-fdf8ec185a97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
いなくなったのは俺の方だったんだ/アーバンストンプ
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 0xded67ddfe06b922d9ed26993c5e6cd85b3c8cb8ecd589c742e07fa81aa8f955c. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:45:38Z), 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/JPB621400225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16af5505a2a9a1080d1ce49265f3854dff007321b249eb1d3d6acdb5e182ef2. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/JPB621600159.
オールディックフォギー名作撰 絶海篇
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa721cd84bd4a9f0df66aa0c2008213bf69bd4ef1ed31215006f8106549c570b9. 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/JPB620901570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6653881782c78e5bcc5d8504c3666b34c9a5d2a18f32e49b0a0856ae9f615598. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:21:56Z), 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/JPB620901563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f31eaf4d12e2afc7e9721cc1c58d7c8d6a5037debe3be103f7b250e7ac2cae. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/JPB621700215.
オールディックフォギー名作撰 破戒篇
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4efc547cbf7b5ff5ddf1c87ed886c5af6fb3bb1945bab62ec81f1ffb4cd92d. 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/JPB621700208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e76a2eb3c3b38caf133ff34645833ff69589b97c99fc069fff5516247cbe73. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPB621106611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b81d9dd1ff7e89cf60b7d825eb121cb1ac158a75692be6ced20e22d453495ad. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/JPB621700210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8cfd5babcb8698189f603ae562e991f9c34b5001d2c6dca10a6ad14feee1b07. 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/JPB621106610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a262183308f15fe7079dd1145832e6ffd34b5e20067fac71da80db3509318fd. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/JPB621800066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f316888633aa9ebadd6949ddf855d8b0efac11a8b92aa969908daa0ecc1bce. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/JPB621800067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bd1edfd925eafb008b88db24d92b4d9c22657d9046e0e04f65c754d35dbfef. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/JPB621701886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10367f0c953d5774d30679124f00b84c9ec85e35debef8a89377ddc6eff11656. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/JPB621800075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17aeadceae926f77e9d5360295be9d49f68ee2d943f992cbece559a49898b6b. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/JPB621901152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f012876bf272695cbf41a3dc81d1c36e553fa226e470d711d004e8845b587e0. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/JPB621901156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2b840b513c759fa3feef6ac638d20b64efea6c8dffe7ffd53f932afcaf6162. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/JPB622001524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc3b9792214b401162e62e0fa1542c820bf3d75138c1a8d8c17c82d9ba466f9. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:15:15Z), 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/JPB622001525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f07101065640d3f6e3099b7a3df2a7b0cb211e888ca02916729dd1334cd0491. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/JPB622100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33163de322dd3622dbebf874df9ded72762980b56852f701bc605f09b88a812. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:36:01Z), 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/JPB622100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659af31068cdd52d55dc10f207e1fc1b610862e4de6ceb22b8b5a2a6af8e0c5f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPB622100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0be25e6b76cec3386ad0a72f7d3a10ed86daffc298d998eb6df329b21527e0d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/JPB622201989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5962cc3587e6241977a7d76a08f6db4772ddfc166bf4d775a57ce15af80d571. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/JPB622201992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be766c1fea83968e9ace8a30fae40934dd14d59ea1d900371b58611c8ae803b. 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/JPB622401895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382746648bb9532b10bcfd4a201e48341428c7b59fa9fc27d9e4b545fb152a32. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/JPB622401896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaad04b6e5e87ec40c4e0949939e06207c44e679c69a6d19b8a5260a8967145. 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/JPB622401897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d3a2119d14fcbc78694002f7ff6d5a8723a42eac6e9321f6212af0f6735db2. 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/JPB622401898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee83e96b8b9173f1fa47a324b249537d36484ae636acc04254f05182f330c43. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/JPB622401899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3f9d3e2edefa08072ef3bea411e83d37a5b1a59bd7f953beb2157ce03b8da6. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/JPB622401900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b26680bfa6b3b959989133e8a14b3efe501674bee5005f0a33fb4a5c4982095. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/JPB622401901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d213714901a64251d20d13b96cdd2e6c0f6807c1d670ced5ebdb90f8841eef. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/JPB622401902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a42604bad3d250e2907265fe669fe7edc78371593f1680988aad4ee6e953c3c. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/JPB622401903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963e92c81425ecd3779ec770d0c22873702b34f62ae703520d0d5d266ae30b6e. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/JPB622401904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdbaa1e9c039a73d38cf12fb8110a5517c0eae2a7470414e4c58c0eb2418c15. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:26:32Z), 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/JPB622401852.