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 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 0xb68e0f0b297cda9dd1344bc3f609f08361dfeb576959df630b3b70e67eee6769. 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/f78104f0-c9a1-4bc5-b955-9a61bc5f22d2.json and https://artists.proofprofile.net/proofs/artist/f78104f0-c9a1-4bc5-b955-9a61bc5f22d2.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 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 0x5b733449e38d6bcdde617e9fca24286481c68dbab3aacc2e8efbb120790774ae. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/JPW562004571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec47d30286079bb199f9d5494fc130b1718680379abe4ccc083c8fc9ca5e899b. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPW562004572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3565444e8718f53228e10cb38362bc958461e52e0ee6a3c05897680eede067ed. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/JPW562004573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf448b46f183fd56f449d8d0709e08171f6730119299432621dd376675dd9b4cb. 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/JPW562004574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0917202f661281a8109a2b4dfac79bc80247fa012c52b9d70b58a10a23439e. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/JPW562004575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929aaeed5b3b9d7dc5581f869a84dc31e38840cf37c374499da5d1d879ae18ec. 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/JPW562004576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970482721499b7b0ada38ab2760478dc3a291aa6a0f82aea389685226c3e2959. 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/JPW562004577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b376a36a96259061d64d5dae5715de3b94803223b0a0b3f350df49bd0eef81e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPW562004578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf899a3a05eed90932fefbeadbb0135c2c51c9313bc056ccf76f8ac6354a41c30. 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/JPW562004579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3bb8067f3bbf9ec1148be738b521460bf2e8288c73f50b18d883f518974b1f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/JPW562004580.
10th Anniversary Bad Apple!! feat.nomico PHASE3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9dfd20c79e0bd9d7775e726c5245cfe25f662836c83b03ac68bf0256a26dee. 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/JPW561805000.
Bad Apple!! feat.nomico (Animelo Summer Live 2010 Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d80c9c071899610db729d7306c87921037ed6edebddfa67cf2dbcd0256e9d48. 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/JPW561805001.
Bad Apple!! feat.nomico (2014 REFIX) (from FLASHLIGHT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5db82c9e0caaecc0b59dda87fdedb831fe4a016aad12923a4f992a156ce781a. 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/JPW561805002.
Bad Apple!! feat.nomico (博麗神社うた祭 2016 Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0601272f857783d1a37d12e01a7e3cc3f5d8ac8ba21696eba6d9e6cbac119126. 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/JPW561805003.
Bad Apple!! feat.nomico (TOS Remix) feat. 抹, ｙｔｒ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf479753b7d0fa9ae3a7f105f92cfe1b0f89ff6fe7aba110809322a07284f608. 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/JPW561805004.
Bad Apple!! feat.nomico (HYPER RAVE Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360a190fc5dc87599ec826e782e0ffbcb98a212a5371fa92960f8c19c8c331f6. 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/JPW561805005.
Bad Apple!! feat.nomico (ELEMENTAS Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8576c7d29e5765aeb102329d923d2821d5982468d8283969e10959c4bf50011. 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/JPW561805006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0168f3a0470b9dfb5f61591a6c484afbb54135d02ed9a9fb11f3f972bfd684. 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/JPW561805007.
Bad Apple!! feat.nomico (COOL&CREATE Ver.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec16cf51729ae3fcf115b1a184eef25fa757ba7846459747d61e5f19d048ce7. 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/JPW561805008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e0816511e5b7d8f09b03f73e91476652d4d39ece403c7782450b6261e5d160f. 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/JPW561805009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb1f66aebee109b01ee651611cb4f9396f8f4536021318c83a670beae1f003f. 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/JPW561805010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116dd9eeec7754de8e72bb1464149810cd1060b5e8338e5b7ec320837038c029. 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/JPW561805011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa725b89e6fddc73b7932b4ae166a243b8be5e07d9d918004f427aeb96b8e31f4. 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/JPW561805012.
Bad Apple!! feat.nomico (Camellia's "Bad Psy" Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31fd8ec909c09f9c6d839d2beb041b6add770777efce9a4a205410643a9dd99. 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/JPW561805013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68e91922310f8f8266ad42cbe70411a59d5c42054e7c9445f9a75745ab36f5c. 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/JPW561805014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ac2639a948f39a365f42420b8af76c89386c39fe02327e4748039d46f728aa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPW561805015.
Bad Apple!! feat.nomico (Tracy + Astronomical Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f45fb7aa05bda59bcbedb0978ed68d12a66a81366b8fb2b6237c439123ac6c0. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPW561805016.
Bad Apple!! feat.nomico (REDALiCE Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56fbfbf7472fa0be7ca165f8dd5e6d63267415624cc9839b884b2c953b132ebd. 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/JPW561805017.
Bad Apple!! feat.nomico (ZYTOKINE Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358fed7a091d8f58016b6f9173db720335f1d6af9be7b62b2376da9d25dcc08b. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/JPW561805018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1c70dbd148672938bd1c8ca6b739252bd6adc14bba6c674018a9c90521d3dd. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/JPW561805019.
Bad Apple!! feat.nomico (SIMIAN NOISE Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde84b6087578eb7e65e8fc41b402a7892ebf6080b397fcd3459d830f23b60849. 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/JPW561805020.
Bad Apple!! feat.nomico (Graphtech Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbb0048069c8b150af1667188b1f3bab40c31a30203d32c93ed4dc448b9aab8. 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/JPW561805021.
Bad Apple!! feat.nomico (Marasy + Masayoshi Minoshima)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8a2009b414ae245a19f5cb0ea449f5d856e0fffd1173b23c16105a49e2c335. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/JPW561805022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909e43eced78fca29487fb3a548ac90e9a272a3d0c4649ffc70133776bef9482. 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/JPW562103220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ec3399ae202104400235aa65c9ef1a74739f25696fb84c5ada1ec367cabc91. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/JPW562103075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5225dea3f2d600df8fe0b80062b445b6e88bbaa6f9b9ee5d8e07cea1bb3113f7. 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/JPW562103076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd414f7b694f44bc3328d9b1e74cb24e675639359cd826f2b20f14f104a3a550d. 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/JPW562103078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bf3e49ac7b5c4a3c3ee4b67bbea45ab1f4085ae6a52e5c2765b3415b24f009. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/JPW562103079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a99d49c66daa5b3ab6813558333b30e09b983e841c3410b267dfd3bb9ec0750. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/JPW562103080.
Shinto Shrine feat. 三澤秋 (Ryo Ohnuki Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10908abab4abe0c203d38d1bc0021079fe003cc7db4e435f5adad8c78031cc44. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/JPW562103082.