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 0xf368be9c4f856a2d53f78960c502edc1ea7b5a3866eabb5efae569a88a6370fd. 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/d6aa3e07-a18c-4e01-bd5e-d7e54607b0e1.json and https://artists.proofprofile.net/proofs/artist/d6aa3e07-a18c-4e01-bd5e-d7e54607b0e1.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 0xdad3a28f4ff1f53f9c7b73d5a10c4cddc6eaa0d6a50d70919e592568f33f7575. 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/GBKQU2444566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01015a588413932d2f4a9be59372a1bfefd2aa23e9e879b25f111d69c0be43fe. 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/GBKQU2508500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb49610366f23a0f2c4f0550c86ac0e998e1f3567f099640b3deb20d827ea8bc. 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/GBKQU2508502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5c468c5c52f54d4ea7e529927a781224579b0993a3d27a02b380a122b02208. 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/GBKQU2508505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ffcd4140139a10eff5dc3cc87d5e8ee2d5fda860c9428b327bee0e5e41aadc8. 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/GBKQU2503849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e06cb050d01d16737b5913b9c076082dd438abab10f8a8f213eca55d2376c43. 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/GBKQU2503850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637a060513533db64157b97cedbb598cd02fe0a0ee1be3bbc5aed5c8a2e2e72a. 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/GBKQU2503851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a796d68a88e66f818d8a693573c1279e53f61aa4add32f283dabfadeab5399. 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/GBKQU2503852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x340052f853207dce619e70d8b552fa98535ba3876b7f9457e2abd5bf9590b10b. 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/GBKQU2503853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e7ff32eaf6ec0d99e5f9587e7eb2c6110e663fbfc5be769abe53cc78c3a024. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBKQU2503854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a66a97b1d51bf2f4aa185b71274e417d798a789b073d9726c044316af62187. 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/GBKQU2503855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e752211cc625ecab4d396b0dba2235a79c24703248bcd4639acd06b801e0c7. 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/GBLV62422638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65ed5d32eede9a06a2b38dd214c5bb8cf44dde95f9806268441d7778e58178c. 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/GBLV62422639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b78723094b28b71e8106ef0a286577f2caa7051537174250cfcbb82a6cc12fb. 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/GBLV62422642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb98ca2d311b464b7262938767fa4132636d81971b95859ac8fc622184e33dd. 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/GBLV62422643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e244aeddb4a85da7180918d5c378b2fb0777ff4251bba19126c3f70908f3c1. 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/GBLV62422644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b8528884ee65fa4b7813ca934f8ead7f6792ed4005854faac229afda7a4e00. 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/GBLV62422646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dc9a269e926fa6465c2740f0230da5c6b603c7ae0a0fc3a16ccb30b771ccd4. 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/GBLV62416803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a0d225eac58226364201e2ccc8ada01de403fea5bd3391a3bc3d2ea0bdedb0. 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/GBLV62416806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f34ac829927e011546b9c32add69fb192906cb26b4e5fbcebd2613fe8b0ca59. 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/GBKQU2498315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95548966488c4cc8c20066cddee04325a0dda12ee7adb6d367cb9c25878abd1. 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/GBKQU2498317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff73e0b85f86a5e0b55a2bfc1ffe38a04793bf5e3b4410ac7b61cd8e8166fad. 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/GBKQU2488843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943e9428cc2c6197b16328cb02174a777195d7bd876f7661799503d8f44672c5. 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/GBKQU2426030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d517b3e895182dbf1bb943c5f86e35c7c0940b5405b7f3dd3d63afabde28fb9. 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/GBKQU2426032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01015a588413932d2f4a9be59372a1bfefd2aa23e9e879b25f111d69c0be43fe. 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/GBKQU2508500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5c468c5c52f54d4ea7e529927a781224579b0993a3d27a02b380a122b02208. 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/GBKQU2508505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637a060513533db64157b97cedbb598cd02fe0a0ee1be3bbc5aed5c8a2e2e72a. 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/GBKQU2503851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b8528884ee65fa4b7813ca934f8ead7f6792ed4005854faac229afda7a4e00. 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/GBLV62422646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e752211cc625ecab4d396b0dba2235a79c24703248bcd4639acd06b801e0c7. 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/GBLV62422638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dc9a269e926fa6465c2740f0230da5c6b603c7ae0a0fc3a16ccb30b771ccd4. 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/GBLV62416803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6a7283510cb8b39878a1f8954aedd92d86f9c31b1f745e6a979f4eeb62c314. 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/GBLV62416804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ace291a7a23b95d322bbdca5ac2cec5d6cadf93bddb4f0cbd3fbb5a0315d99e. 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/GBLV62416809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a0d225eac58226364201e2ccc8ada01de403fea5bd3391a3bc3d2ea0bdedb0. 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/GBLV62416806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f1e1a5904f775b49deb360b7d580ddc1158e9111ef13466261acc695f42c2e. 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/GBLV62416807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef5b5efaf2f4d253fb62a73b86d98ce073987d275c360feab71a7ccca17f4d4. 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/GBLV62410271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65ca74b5978c89824d378c3a50bded7a6d1a7a3395d2402e9af126cd614b99d9. 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/GBLV62410273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e5948803f1d5707e7b1802dcd6bdeb7fe1b248a11f9bb63dfeb643a8bf36cf. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/GBLV62410272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeba7fec9f21df6e60ee7d2d438825a7fd7402a95168ed2e56301309d3403a9c6. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-21T17:33:36Z), 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/GBLV62410274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2f3391b64abea89c6602eab33fd6f8b4e85448fc0e066cfe486f1357c77d4e. 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/GBKQU2452165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d517b3e895182dbf1bb943c5f86e35c7c0940b5405b7f3dd3d63afabde28fb9. 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/GBKQU2426032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3adc35d55fba1c9b4370dca90a47e00371d5c3b5ee5253625795f7464c743bad. 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/GBKQU2412902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc694ae9a6c976e6fb746c4f57d5a078ea39e35d590e88ae97f5f5b7f655ae0ec. 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/GBKQU2473235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44ebd7d52bd083f86590d3b02bc8c899025ac7bac03205e9ac6bff9bb1fba09. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/GBKQU2430360.