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 0xbc48557a6461da3acb528a15b9c6af2d3c96f2ad0822c9202f6d3d586eb12293. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ac28b98-3ece-4d3d-be72-647418d432ef.json and https://artists.proofprofile.net/proofs/artist/6ac28b98-3ece-4d3d-be72-647418d432ef.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 0x879120367e194c8262bc53ead47d3387b8bfbd8c85edd5575e26afad0a0f294e. 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/SE5BU2448924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x976d97c1398cb055174b3638fa18820dbde90060a7414b1828ded2b7c710088c. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/SE5BU2448925.
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 0xa36bf3de0fea4f780cc3aaa2cebc2f2939a7188eec46f47cb618fdfae2b12489. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCJPQ2171574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f244eca69a3d23b4bc4068eff6497cdbdfab8c07f5d7992261b6652288e8c4. 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/QZF8N2134440.
殯――死へ耽る想いは戮辱すら喰らい、彼方の生を愛する為に命を讃える――。
禊祓の神産は宣い、禍祓の贖罪は誓う。feat.あらまり
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15faf465ed76554b15e4ba65d704d7bd2fc442d68f5a0bfcbf45c78eccbaf96c. 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/JPV752205970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df1ac533130b0c08614bcda5fb0a180febc53765956f564865b8bafdfb44725. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPV752205971.
腐蝕ルサンチマン、不死欲の猿楽座。
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34d74fa5132e88960d4ad8a5bc2161c211e33ad4a884fe517f769caa55900067. 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/JPV752205972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55db4735c2bd9fd5df75b9676474a62ee185aa86c10bd2967a2a4ce28313c121. 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/JPV752205973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c59dc5e2ddafc1ea5fce4f731e6021a7997a0ffc6372b1f09304fce4bc3cd66. 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/JPV752205974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9125b10a0a489f77e4ed637213628e71e8575b4bb13b8453cc3165eaa32dca. 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/JPV752205975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc50fe125969cbd909188495b1fb78841f2dea64e8b43ddf309ce11f5a232179. 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/JPV752205976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8deed95ceebde0c85d101f60f670bdfcfa19c87f4b41449ec7fb79a0804cfadc. 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/JPV752205977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223221533902abc1f2802295627a2a98c19f56ad52c0839984b70036d5a52bf4. 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/JPV752205978.
黄泉より聴こゆ、皇国の燈と焔の少女。-殯-
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e67a810d7d3990ae34f7556d43d5ef644d638c76e8cd2851fe1dfeb05c1a6b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPV752205979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906d072e478ec03c415ac7e202713968007ba1acc458cb7befbeca3d9b4dfd2a. 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/JPV752205980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d1f72aad903a37ddd5b509f3bd42bdd6e00d847e96f0a8896f9b838f9ce1f9. 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/JPV752205981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a086cd277520c65a964db71a912790e82c7ce8957035ca0c2913331b939bfee. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPV752205982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0d9c2164622d0f05b44b9ecd2ebe7fd222373ca84a3f9d9937cb09da94e576. 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/JPR502401562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa42512a0b9e1f15254e3cd4a0e62c35b95007dde3dc45e035e27d6f8f0dcc87. 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/JPR502401563.
Hakahakai Princess - The Herb Shop Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2039465c45f60a456376b81aa9aee933787e6fe9047ea0ccd915f71d5187fdfa. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:01:33Z), 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/JPR502401564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664c11e0135c1a0b3af88b70d6c23087b95e03dde0202ce8fbd08de69b3586a2. 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/JPI962100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e0f06b0cd8c314b13f110fc9b0ffe10f90dfcf757716d605bb07154a2d2d27. 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/JPI962100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0378bf3726c065e2fbba2239aef72becc62867d7a21ee0abdfb8818070a46588. 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/JPI962100044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f3d9689dc9e04a2d4380d3592358d410f710d507d4f96567f195a5e3217ad4. 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/JPI962100045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ca1490d1c7c1a8c81790469e60652bb82a133def836a1ea36ceb14ed5753660. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/JPI962100042.
[Anthos]影河凌駕(CV.濱野大輝)、灯堂理人(CV.伊東健人)、チセ(CV.駒田航)、如月薫(CV.土岐隼一)、結城眞紘(CV.山下誠一郎)、清瀬陽汰(CV.増田俊樹)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce23d667c4cded5003ddd3f16dc21ebb25c30182e631af66e098b68b23197fd1. 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/JPR502151196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ea0722051b8090765e954ae11a41eda55deba7d3d3f7c6ae45961becceb167. 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/JPR502151197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81aa8700bb3e6ba3a2c12956567a305ec69d27556e38f8543404e6742c1792c8. 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/JPR502151198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd95053f0bb92d6cf7b7640fb19d3d6d13ff28b00ca0dd5cc16a26f08a1394d. 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/JPR502151200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da162830ccdde3572ffe07b0207b581cb797cab048f0010d341288c51991376. 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/JPR502151201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7188c8135e443245686dbd2ff90896064fd4f778ea3f6c8324884b253252868. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JPR502151195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6323164fb0051092bf04005e4b156dff16ca2a5cedf675653bd3fa42114dd3. 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/SE6SA2366839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd6ee8bc6e2da8bb13073ad028924dca2a09135dbd4183adf8a5c07863cd5ba2. 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/TCJPT2249967.