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 0xf33a165ef36f0e755cabee25287de4023c1f3db4f23f7985c69169164f44c3ad. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9027368-aff4-423e-9957-e4a26b3bbcb9.json and https://artists.proofprofile.net/proofs/artist/d9027368-aff4-423e-9957-e4a26b3bbcb9.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 0x4f0226c94251d93e20a7886152c455b5b663ef20a8f189951b64e560355dd1b7. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/JPW462454005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9b15b62952c41c055ddf59ea3a3bd73048eba00bcc53caf1ef9a7c05cb4f31. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/JPW462454004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58fe8ebc1cb7e2c5676db6e024253ccc40c83ce68445f5adfe3c3700e5b85da4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/JP92N2448020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed614c4dc57decc518c265c1de9e840206d6ad89affdc2b5e27fca64fbbda26. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPW462450537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f564caede0462a90b23b21af20f1231de910777721ff83c534f188970a665c. 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/JPW462450538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf08f081c9b834be45de1effc47931f359bac5f62168d62773ae4fbffb534310c. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:39:33Z), 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/JPW462450539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870fdcc3913963231ac6e0fed659648d9cebc9592bc03b9b2d7fe70f41dbd458. 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/JPW462450540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95420328fc93abb4016465c9f9b9d6f43099372f62a2b609955d9923e14dff93. 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/JPW462454006.
有休を認めないミスターエックス
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaf3ff261ba7f352a328e9ea950ce5e7186a0bf89e5d58d240c3cdca5880647. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPW462473812.
ホームセンター準社員ガールライフ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc4c61d084c519c0cf12fabbcb1b5d82f34830a3f5f1b06d545b7dda1ffbb946. 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/JPW462474768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1203ad73cfe0270a34efbe589d531fb75384bea097b45fff39395d1c31d4b35. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/JPW462503757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccaf3ff261ba7f352a328e9ea950ce5e7186a0bf89e5d58d240c3cdca5880647. 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/JPW462473812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1f6263c18cef848d1180b127b8e76e18a36596bb216d8dc3a08b2f22a96ce7. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/JPW462503758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5cc29a351b43dcffc15f6e53445ed107f7f56665577513b4555285ff213b07. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T04:31:48Z), 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/JPW462503759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683af99bd9e21641153302eb6634da1d9e09a6ab2f489014ca4154bb68cf1415. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/JPW462503760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3538eeb1c48c03360042e1862a235269c25bea456a1aa06c433b7bf0555c1f7. 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/JPW462473386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd553858f0ee78ca11947fa682dacc9b490c3d05868bad6bd3a244f4700842283. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/JPW462503761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1622b35b4dfb45cd5cae8285dccf478acd8c2738ae652a5172a32704a46382fd. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:53:42Z), 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/JPW462527686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb33d16b2a791a7b0fc9389ef6c604a34f72898ad5505524bdf0e98189aa43f5. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/JPW462527687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dff971189507bf05765f0d412373ec6a9b7b33d7a3d081af787e8e3e2f76447. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/JPW462527688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48314677661b1733955b0d1d8e6c5a85d7414861a2c79ff635616461d7d815af. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:49:45Z), 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/JPW462527689.
ホームセンター準社員女子のラプソディー
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1622b35b4dfb45cd5cae8285dccf478acd8c2738ae652a5172a32704a46382fd. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/JPW462527686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48314677661b1733955b0d1d8e6c5a85d7414861a2c79ff635616461d7d815af. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/JPW462527689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb33d16b2a791a7b0fc9389ef6c604a34f72898ad5505524bdf0e98189aa43f5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:35:21Z), 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/JPW462527687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6764868d2850e3a60ce9923b5159caa69e503f40ec43432de259b518890403c. 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/JPW462553745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76adc12a6f02b010e8500008db988499d3fefc3d93dece08c690a2f001b85502. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPW462553746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd073ae350010c1e7f0a9c9f049a365d726c19085b420e7b7983d420b7cab36d3. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/JPW462553747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dff971189507bf05765f0d412373ec6a9b7b33d7a3d081af787e8e3e2f76447. 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/JPW462527688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46566294f4acfc1fec87289052e08556ddd0eff029677b43843b3d1fbcc4105d. 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/JPW462527690.