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 0x670baf5069ea1182552bec522b087100afd4534d6beea9770a0da4c0a8bf915c. 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/4beeec09-d7c0-4405-a5a3-3b0d05910113.json and https://artists.proofprofile.net/proofs/artist/4beeec09-d7c0-4405-a5a3-3b0d05910113.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 0x1f72cd13f7fd81066a30e7e121fac5e22b388106c978bd8ea175abab1f6393a0. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T10:24:04Z), 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/JPB601950020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf268e739c14d2b377dfd830414337ef37eceb6e67a4c3f993efcd52915aab09e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/JPB602075027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c6d4f59d46697fc498fb4da5b6597bedfc50aff75c87a063747a3884563537. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/JPC102000258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f33dfaec14fe1ce8041af6029dda3215c255eb32985d148b4d7becaf3ef49e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPC102100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14c3d99ab56f0a542e9c4a9791c9d5c5175254c44827a426cd9eb1cfb6b734b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/JPU902101724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220a5e3b1f11da7cfa85f56f6d2f331205ac48c9944a025513ecf34e0b8bf7d8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/JPC102100238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d82761bc321d9dacb2465f3d2dfb39ffc47e126c54b2a29b281425879597c8. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPC102200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8a5d3d81a139ba9478a89545dac206bd7c3b0fa47b0acb1820dc025c8de62b. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:54:12Z), 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/JPB601896271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc00aeed257bbee3ad02be267527496a49715e16b5f66bdea325de92a0a16c0db. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:10:27Z), 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/JPC102200242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8a5d3d81a139ba9478a89545dac206bd7c3b0fa47b0acb1820dc025c8de62b. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:56:09Z), 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/JPB601896271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f17dbd89b868646edab59dd606bcb33eaecafb6beda5a6157911148b34efcc. 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/JPC102100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09fe1bb5b4a37db53d8a5da0189c2f590fb83b9705b2faa16ced9ea040b669d. 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/JPC102100176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643f52062b6de2ecd7351b570ff45c5b2158cee4f911110c042e6e770dc8d1fb. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:11:18Z), 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/JPB602054181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x847c87601c0462e1b6c4e45708d0f902ab5b58543da26a8c6c2f368529f42861. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:15Z), 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/JPC102300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32762f470f504f7284f7419e362b18faa3d4dd3450ce64bd65c52124e54d35a. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/JPC102300229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9835cc86a593d4f914a5d78f757659bae3a34fe289d8013a327c05728891c5eb. 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/JPC102400351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa5a13bfb8faa45cfac3f5820c130d481be075f24ba1130ac88cc43821d3ee1. 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/JPC102500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913d615e6fe98427ae84e711dacba2da17f1da06fb2cde8d418ef5fe9e5f823f. 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/JPC102500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a03231e4e8f70aa49360197c7291123a3d74d310c870cb12877b4ed2bcd967e. 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/JPC102500070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c9e4bbdcc2e5855e65bc0ce370dcb14d428ee963a78ef5417dc851768ddf92. 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/JPC102500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85afbd884ca069e988cf0cc6baf1712fca4e4237f3166d0257d95a7cdd1a85b3. 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/JPC102500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa731fc2a70a3bf915b5fcd718184529bf3579602b0f2a3cd738e85d451bd007b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:04:30Z), 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/JPC102500074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd16c7f91838e04f061d4bd821fc33bdf747ee72649e0e0eac3196a74602abe14. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/JPC102400266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7e146e6ad6ded493ac2d8d51875e73fb928d798b84eb1a2a920aec35c7347f7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T04:43:38Z), 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/JPC102400208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafa5a13bfb8faa45cfac3f5820c130d481be075f24ba1130ac88cc43821d3ee1. 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/JPC102500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1bb37e4e4b478d6e65feb836fa60fc0b600da44979dddc08ee1fd289a12d98. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/JPC102500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aeadfca36a0ce69dd071a41a8618c4b794dabfa65ba7dd6b96a91a7439963bc. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/JPC102500211.
胸騒ぎ - feat. Chi- from カメレオン・ライム・ウーピーパイ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f742dbeb028de075b16f2b39da70534b8f535f85c465783c451b309cb77034. 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/JPG102200650.