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 0xf9d92bdd93564d44852996654a255e25bed10716d0491d0388e3b32d5c0fe465. 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/0b7805f1-2698-4050-b96e-b73f825bf195.json and https://artists.proofprofile.net/proofs/artist/0b7805f1-2698-4050-b96e-b73f825bf195.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 0x15f1b889aa4ff1b5509eb191b0621063472cb787ed85897873fd29358175f1a5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM4TX2263233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a89ef8b95ac72854bc183e1106ff04b9728212b3939cbbf65f1d646d7eff74f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPS801732086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072d41ba5a4f750b9bef429fd08af02e224b2115014a956d4262ef62e083d516. 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/JPB602402583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15f1b889aa4ff1b5509eb191b0621063472cb787ed85897873fd29358175f1a5. 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/QM4TX2263233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4ff9f2caa3926abd5d37e764f6d679758ebb33b2f475c878ba68a8f78057bc. 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/JPJ902103450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c73c10726a7c83f900e2ca6bdf28ee658d7fe33258cdaaa990e052a74c88bac. 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/NLA8D2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f6848e87a4f24cfcd34223e4e6d66958ee8de9e1a7c828ee3a038f119a48a64. 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/JPS809918817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc9e937654733cfda8547f385fbd1a94819c422f627e9587ce765229063987d. 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/JPS809915431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581036f7a57ea985b6ae7ea705bc08c040483623662699daaedbda1904560006. 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/JPS809915433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed03e557b38381de219d265b1b1afb545ab4ec5f04f671c13c31cc96669f35a. 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/JPS809915434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c08e1a7d9f239ca680d45a4fdaa8701cbe5d5c2e858dcff8dcab9b745b47bd. 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/JPVI01839840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cdc8c39be429009601127ca3344099d4e2722fb40961b2f2301f9e87c74f22d. 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/JPVI01839850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc3727caa31d36b42ed12ef50e958ecc173f2fca27d464a29abff31756a236. 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/JPVI01839860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27fdf7c435b70e0be8d3e1d4220f1b3a574e70a5b42a6409ea182ebbbcc034b. 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/JPVI01839870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150f22749144228aafd8407f42de29526486f5b44f95212cd38cbf4818d5a3e2. 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/JPVI01839880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1349cce8dad193e6e40eb29389dd5bb75c36ecd0f72b53e4186d5aaeba6b8d3c. 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/JPVI01839900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dc67eea8e6e66f1364b21143b58be8ee0d2081e2493c8bc315570a713a635b. 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/JPVI01720980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c462f9053e56956a15931c97429bc0071760d5e86db9f53df64a5771892c39. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/JPVI01839910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3533ae093b555ff824903218334294d820b096718ae31dbad10ea4cc5182885f. 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/JPVI01839920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e842c121158541dd6beacce8569977a08a08a1a711a8454ef94a6deb245993d. 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/JPVI01839960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7638127fc0f73bb1bfaa10d77c7a99228fa1fbeb5cd007ce0c8761c2628698. 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/QM6N22415341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652ae0b11a9ef02537414824e0b3ca0dc64026331d469ab9fc6c2fe4e85f7039. 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/QM7282478661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8293fb2d20d2e12cf9f0d985587af30ec29f9f184c7db38d94b98b5bf5451a. 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/JPS801837183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3855f0cf1a8022afc479a6cb23e1d77ea3dd6a8d485fea7c1ec01aa00d494c48. 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/JPS801837185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ed5deea8ed689f9af4d256597224a71f9090ca322bb598b0571aa6cb5a0823. 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/JPS801837188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c843b1f06812a60739e67b3005ec91ea088fbbbc72f16702fcdd1f796692d3. 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/JPS801837189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13589306af20ddd3dd4313e1d25137d502dc59c68f4ce00b07d33d9783aa86f0. 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/JPS801837191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7180beffe75f5094f4a7172db94edab0f082f9cbdb5abb5412fb617b38f59d8. 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/JPS801837195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf33b32f4ebe383b1d5ae13e904cddd348930bcd2f485308dd90e419b15e9791c. 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/JPS801837197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8dc61b8d5ed68cd200ae10d1f666a5b7290a51aeb871e3954592235ef15050. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/JPS801837198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f477be69cf377d35badaf238be8eaf03db33f2346245e53731f0e9dd2a3f3a8. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/JPJ902103420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba55a998d851a503e310c9f70f72c22f4bdd29c931719cec7b9abc5eb579a27c. 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/JPJ902103430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a124b7fd67772a70bd79cd0fcb237405f0b0c4b7e8c79c9ba67ae04c3eb20ad. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/TCJPF1751293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6d8eaa54935d119f4e8a8bc9720afbc46ec367e712c6f18ab6843c6eecb99a. 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/TCJPF1751295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cc4fd0bc4961e43d336cb2c5156c90e50b8e4b77217efa34ef44397ad6f3e0c. 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/JPV501600775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3243377b6d64f0e7f61c13b2e7025e303f627b11b57bea845a66779e7f748e6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/JPJ902103460.
BALLADS Live in Tokyo mynavi BLITZ AKASAKA, 2019
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291f8b87c979705181e7f75301bf74626be3d755c6d86a131d508ee576c5f45b. 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/JPVI01810561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54f9e75e025d0f625e44727cdc8f4153c6c98e59629591f456fb5c1a4ac2c91. 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/TCJPF1729709.