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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e68b5be332feafca9306e1dce61dd7462b5ad575df0972a7c1e04eaa903642. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c200699a-83ce-4a90-bf61-6acdb9e20705.json and https://artists.proofprofile.net/proofs/artist/c200699a-83ce-4a90-bf61-6acdb9e20705.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c2b4b729bbaefbcae7af0145e7f4dc8cc6c86dc770f830155c571a32148c82. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZMHM2336934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6912788e0f01c890acd4c50b7ea80b86429253a821d25b7b6b4bcc6d49cbdc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZMHN2306875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11be40d7b4b7432087a87fe8edf29f42f3d5ef84b27f960ac5b2da17120508a. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/QZMHM2336600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbbe97532726157c6a15b7c7753d46d129953957bee3eae3b8e5fdc7d8d86700. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZMHP2350891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b58911fffe69c0c3a4f987602bdb20942ec08a9dcc7b22863e6bfdba0eb8cb. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZS642349768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa92b9cbaae59a777851cda3dd649bd655d02daa941cbef8d756e29721dffa307. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZS652306309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961d73f519a1f5fc3dc0d6d9fb4351c21d212bd1105aee89b6fa460656545372. 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/QZMHK2351250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d89bbd3b8f936f2ab37a38ab8142a60d9b78e5d827eb48ccbe94cb1e7daf683. 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/QZS642349315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1847c4960989ed55146733afb0cc266d43ba9613de5f8a1ff0a4619cb5e7b8a7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZMHN2373572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe56b2ea53d5c7bca9bd4fd0b67dad26625f1f8f60d6f9ca2d119a8ba73cf629. 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/QZMHM2236738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dee9724c3eae566cfa2ed5a7ff188d42a4414515053ac43f2521b15430e89fb. 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/QZS642233754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8905f0971fc827889bc6d2e1656b2311773a716bac927fe1ec5f636f3a8cf292. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZS632205490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ea5de1df9aaf9d39a6164dbcde099ce8e933840bda61de9e07da430fa55956. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZS642266702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18a07430d7c86e20776b5838499a5b3c8e0a904db20033e28490f7f5fbeb9e9. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QZMHL2266061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fd34a6a6063886d54889a38644e23bb113a16f37272dae976b8f46ef55e386. 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/QZMHM2203180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa434d5edcd84089606fba31c4735334999a2a7b07e8945839884bc490ad1f74a. 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/QZS642241900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae17ba169134be8d007b9ff0413110fb538e0b113cef03b46fadac17724fa62c. 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/QZS652299974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2e69ec735c0377cd42d0fa79158ac61a62c9dab8fae5750402583aeb2af070. 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/HUA4X2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x254d0b8fb6e1daf115cfe544425d12785edcfcee75bf9c8fd8b3bc6035f2134c. 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/HUA4X2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1880ccb32bc1c7d3ef12fd4f4203ea6fc2b5687d40c0782df0f7cb3a690d11. 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/HUA4X2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83336959225b86cc9ca977f4af882868138a01ecbef2f1bfea7773801e81f0a3. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/HUA4X2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcc8611ba31f23f47696384e4001edf3b182ec3c0a727b7a8a14cba23384c86. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HUA4X2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c489dd3696f50d86d33ed8c8e4e35f1035519785b2884f1e20abaf800302120. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/HUA4X2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefec6345b8f5b2d9bf347efc1918080da9073a9480e1874156f0a905a96a448d. 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/QZS632497104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed206497e2199e7d83903bf72d58c5c7ccfb2f26499e9b1a332e29da3673567. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZS642463683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae2d4701fc4e773e3c3dc10b870c2b2fc5966a166cfc0716724c3eb711527cb. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZS642407570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42931cfefca856436939a71b0325518128aa0bebeaf7fa40e1370210385f4704. 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/QZMHM2447341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2ed56c21635254406bdae7b95f3360457d5dd599815671337a4f4531f50b81. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/QZMHP2472406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef14bdfb6e18760abb0d09cd2ecdd3f6c42b0af278fefacf67e3ac640c7776cb. 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/QZMHK2410190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f4e60008a715a949fc637fef501cf0b2b1c5806a7b846475f4c0ddc4c991e7d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZS642485342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d960d615810da34517348d322366a1e6beac1baa1261e2088a2b51c772b00d5. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/QZMHL2472683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f43e5b124d9b29e7a11ffa4eedcb6d31b8086df17255aad9d8244ea1b73337b. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZS632360897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6650d81a257cabc3535be640720ab3d7fa5d4950c6bb135a5de09f1d2534caff. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/QZMHM2254006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2168583959b532feb42c39347ada64c13d7bf901fbf153876e84b5163370338a. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZMHK2232736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a197c78de619526224ed7de28d519835a110e95cb1261053a560d7ccacf1e9. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/GBKQU2548719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c3b3647d20bd64a1fddd5af30a8d40e3649fb02fb71d104ba30dc715a0c28c. 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/GBKQU2548720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933e9466719f57f22745e68e34cea1ba14c391d80906b5a0455f0bb7fe93d9cc. 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/GBKQU2548721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5aca88a6b7841ce187b0b5d9a7c5149525f2201fba028603f89b36e843b20cd. 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/GBKQU2548722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5d312e163512752e5c91a774f1a0db4df631b000f5128528de9a0a5938d13e. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/GBKQU2548723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e8ec19d033b378549a83df36811da156915291192deb4acdc4c7b0bc599548. 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/GBKQU2548724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e310451d888b40b548675c91ec91ce684c5b3566aad86c1383e32c408aecc14. 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/GBKQU2548725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7ffa1662df53695827b592772a847501d26133110046095e190d854cedcff1. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/GBKQU2548727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15037153569d5824ed99f6128375e59d1c7eae4edc10706ba4901cb045ddbd40. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZMER2281495.