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 0xd0543f213c3f1455c5ccbfbefc6b641c8e52a97b66a491b9f163c87906fd0489. 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/b441f6b6-ec90-4f67-8f8b-73b4b546f015.json and https://artists.proofprofile.net/proofs/artist/b441f6b6-ec90-4f67-8f8b-73b4b546f015.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 0xa886fd6547a09fb918328185ec7161fcd3745980e0f01c2c4f58dcf26b76a48a. 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/QZHN52395801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0586c4db835adc22200feeec8376a6a6419bcd7b5741a156eb611919f3c44a24. 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/QZHN52395803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28d9c293b34608ab9672e58cbe659ae0c18f5b3cd46e31ff96cb1d8308305ce. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZHN52395795.
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 0xac3000b8c5b3aab369ed57d872fce02a4e50fa3c664a70af354b253b1d3856e5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZHN52395796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5bd229d868d71f49ed3683dda87b5086948bda88fc6c7f5c5aaf94107cda8a9. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZHN52395797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e542d89ad42848b013a6c317cccecc368263e7f6f073e2126e749fd2d46ec16. 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/QZHN52395799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb62749ec480a15f8a79924d7c1c9490fc1edd736eb1656854e3218e41b0f4e3. 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/QZFYY2388928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef13253ec429b1d97ab8539d0e4ea6bb0ae52194904b0ea7a628b01c3d7657ca. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZFYY2388931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714887d07b4698d7af5bb94628f99445b3c1c3d11ca98b5ce39c2db8b8416df1. 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/QZDA72210778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b9fe17242b0983933074222b3210d8b6d82f5a5c9e0256d4c25ffac6405dc7. 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/QZDA72210783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1207c9985628d616ceecad046f7812551fe64a8465f5c9aa01905ac3a35dde34. 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/QZDA72210795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef3d584084854f946090c7e7ef9c5709e1d6e147527f9d2bc60bb3b4aff2170. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/QZDA72210772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdbeadd549323915b0686384e3b3382b92dded9dd30f0251ca09674a59fccc57. 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/QZK6Q2181623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4ef96cd68a179df8aeec109170fe4785471da40b9f4b85f8569d14f3f22290. 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/QZK6Q2181627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a2e316e1cbe02dd507a447d7e48dfb670830ae40b0ddd1248f730c735e991e. 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/QZK6Q2181628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3e077ad2d8bce7da2b85dda038c0ea83881ee182b2ae329fceff29abf111551. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T16:47:38Z), 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/QZK6Q2181626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0971c247ad31898a946c77ba4789658041c8abad7b2e7804b5442454af267a4e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZK6Q2181619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3255ce106e1573af9a9d56a8528206fb56e7da5b65728af2dc32a21b3b45d81b. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/QZK6Q2181620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193c88941651b8e4d537431ae727961ee8947fb1fc773ed8eceb0711864b7fe1. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/QZK6Q2181621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9e1bbd19700db925cff6da76cb1ebb67ab90bdb26d4411a1e39073dcf0a777. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/QZK6Q2181622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb814f46fe4563b94b3106eb4ca2e445d102467cde4b28824df4257111cdbb9d. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/QZK6Q2181624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d14f91636eb16994ec1b44995c8f10a884b17a60da0a06db61346281f322028. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZK6Q2181625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76bfcedee99d5f101c0b3f7f098b31780ebcf90b9de5f2baa2b6f46c7ab3e12c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZ4JJ1847520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde61768a66550df7d4e2a66727baf85a930e48728feebac185a2d5bf862ccd2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZ4JJ1847522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b96e03a7cbf0bde5d46afedcdd2e70ded0921f3a041b88b678ea474f0dd1534. 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/QZ4JJ1847525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45f309e79d0d73fdf2da2fa67c1f646ddc345216c3caf55b8238a85a6fd3ae98. 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/QZ4JJ1847529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62be9d7e7cd083815592d29d521a7a5525a5b8261164203a503ad0f28221101. 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/QZ4JJ1847521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea45fe5af26b0a59437871edcc7a816eb79f55d4a6dd4347486adedf3f5541ef. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZ4JJ1847523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991242168b0ba29b83ffbe3a7861f861559172b696f19bf1d8356e0805867ca8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZ4JJ1847524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd81302748baacb8510f725ee7e1697974b7d12384335fa76fc70ee3a1d7504bc. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZ4JJ1847526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e1f9276416adfb2731fe711d7639a7c8d9048ad3b4d370c62a22344f1053d8. 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/QZ4JJ1847528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ff9f65404b96d237dd9adc2ec07c7dd7bddd19e41e840958e201115c87e1c1. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZ4JJ1847530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6172ffbcf5038165059f62858f2412cc1d39065aaf80f7763faad8442abdd50a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZ4JJ1847532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5d0bf3cd854d0c901228ea0a9460f1379c4b064d150a191910f8a1371f983a. 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/QZHN62246942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7befc7d6f8997ca636cd5bedb3db44a3b83566e04d88d18ea9c07d1a454739be. 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/QZDA72270478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613bf0e063faf4b10c4bfacea5c134b130dd21e2b1b3cf3694620ac96c40080b. 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/QZRP42155288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ef6a3f5123319b65a68bab34b1b35a44b0f398f73674c924ebca8bc7025a33. 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/GB8KE2412572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa8816750ea3c1d88189d456b5828351f748ed06f9466ee4c2ae5d990b35760. 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/GB8KE2412573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc65d1df5cb7a596b96b5f3cd10fad1609223d3a09e7a21321ff7d37ab9ae82. 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/GB8KE2412575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534871d253a30b252b4b0306e45a8d9785a9a9ef850bdb2d3dc33edbfe973a1b. 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/GB8KE2412577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3ed3a898231f208b47d8d6b5b4c2e4183246f105a167c3aacf17072ae5d8d0. 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/GB8KE2412580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35368b79caa97a95b396c6c3f50fa1bd3ad8625399376c38c1d34da960d57c1. 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/QZRP52207686.