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 0x57ec387cb10d5d288d1a2c2499dc3c99e862f7059961d28d88739a27cd51e558. 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/38e69d29-35b4-4a75-8063-16189da9c9de.json and https://artists.proofprofile.net/proofs/artist/38e69d29-35b4-4a75-8063-16189da9c9de.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 0x9382eaeacf02a1e42d19128b55f49a989ae3f52051dc8ebb6785dda8b86958a2. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/JPPC09003540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17270e31148798e7c0e9ee77f0dcb5d9370f27a48fe2ad32866bdabcb9a1c2e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPC09003470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f00c9f13cf4f4b624df19e70ad01ab5fe2ed3aa275727beb252d4f2c5a0ce81. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/JPPC09003500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b4f1cbd6b622fca810f11bb7c0fa65af65acd8d7af65bbe50f61ca21719022. 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/JPPC09211380.
もう笑うしかない/あくびがしたい
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe996a8dc944002d2237a32486ee427e02635d9bcbaba557b8e7ac9a717dab319. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:35:09Z), 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/JPPC09220510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe82c014fd2bd595eb2e2cb35a0678148bb4f76040729dcfca1a9dd4497f795fd. Chain 2 (Bitcoin): anchored in block 958204 (2026-07-16T00:28:35Z), 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/JPPC09220430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ccaea26775d195fa9c2d5a41888815136be288a82dabca88ace295dc9ee8381. 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/JPPC09103260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe61a7430cadf1b3b8a9b17a953e33da2297a537c49ddfde2c63d45a04aeb5ad. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/JPPC09304730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a927b4b227593dfb3fc1dd16e086c8c06765dddc87a147411128935343d78e. 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/JPPC09304740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06bcdd69eca13c187f39a73b9a4f21ef19bea9d1bc75c8f4e0d17c9a027e6cb1. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPC09304750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00c9b545612fb1720bfa60a372557326026966e249886103fe3f8807f580c7e. 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/JPPC09304760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b4f1cbd6b622fca810f11bb7c0fa65af65acd8d7af65bbe50f61ca21719022. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPPC09211380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52e4c75c04bf22cf266acb2279ddacf6e1359db5aada3cc0153bfa354307893. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/JPPC09326100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f4b8227670a3dfce74d6e57f664b7c421bf610216e36e72f575b310af60cc9. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/JPPC09322390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c06d6019347b9565ef893e40186319413617dd6f4210b47db403f95fe6659ad. 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/JPPC09410800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7db60fed45c834a6c9ac418ce64978131417b9c062314086889bb472f9fcec. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/JPPC09418810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ee7125fe5d551f8c7ac89dddc6de57bedb6ae132517b6eb231be3a2b51b661. 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/JPPC09418820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5963558d41bcbdd7f6c353c1db3dcb9e601648f0900678a7cca4ec96f241a6a4. 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/JPPC09418760.
Umashi Miyako - Ganbaroya We Love Kobe -
Platinum Best Eri Hiramatsu Single & Ballade Collection
プラチナムベスト 平松愛理 シングル&バラード コレクション
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d21f3d420ec8be462e52776f0eca1edcbd96328181edaa39addb2b15f6fdab. 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/JPPC09322400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93a08655c10f9f5a13e051789425f6df714dd80d9f40c0141ef453d79d87f3ce. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:37:15Z), 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/JPPC09531300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8f4b8227670a3dfce74d6e57f664b7c421bf610216e36e72f575b310af60cc9. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/JPPC09322390.