1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x9dbd9dde30f21308acba2e3fec4ab97f271485915620676262ff03064f54a1c2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c94d6b18-4b40-4405-8aa6-ba10f2522bea.json and https://artists.proofprofile.net/proofs/artist/c94d6b18-4b40-4405-8aa6-ba10f2522bea.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 → block OTSBitcoinBlock must exist at that height 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 0x7ff2ae968595d2bb392fad44d9cd230e73ead5a63644cad7e911f75dd9d9ff48. 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/AEA2W2226696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaadfee0db963ef0d0cb043ce7d97721e77cf88fa627118b282c112436839176. 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/AEA2W2226698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7821cf3a782a6a9f39aaf99727d33722ba75642a02e1992bd8dcab59412f2a. 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/AEA2W2226699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c641527b09785e180a3f5c0f320da1ebeb291cb0e6ae8db0ff1776e57cdc0e. 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/AEA2W2226701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201e8e760f355dff98a65e0b92afb08bfedd18e995ba5cf5163ccfd3a08e0a0e. 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/AEA2W2226706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8fe8c1c32845d17a565b44737da7e97cc568504502a421b1d7449ace2e7919. 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/AEA2W2226709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7face3c12f264bd1a0ea23c8e636fa1b58562b0397a08189d67f32d79e4d3b5. 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/AEA2W2226710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef46883e898b195b5be306e99b4111829fd636788142741d4140f212401fba94. 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/AEA2W2226711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf081697c797bc272b280520dafa37050927251c59a92c2af6a514072e68c910f. 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/AEA2W2226712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc783325330e6841b263382e423add82362527d8ada29d171b2fc7a2e48522a03. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AEA0D1802358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c41d4675660bcf657ab08dc3774241a7917952a29379aedbf4514664814a51. 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/AEA0D1802363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670bde29a31bae41f12181b6f16858c21a998427160b5a90d4ad6a160eaa004a. 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/AEA0D1802366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b23627a70a1219e84b05cd13dfb0ebdbe03015a9ca15d429ca3ce92ff492d2a. 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/AEA0D1802368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf925eb5c26dc5b3b80bb6adf615f3e6d3ce69dede614b837e2b263aba13185. 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/AEA0Q1855658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c1b91e207c94cc0668c08dbabddaa595b94351c0e4cce1928c76f246171b45. Chain 2 (Bitcoin): anchored in block 957253 (2026-07-09T03:08:40Z), 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/AEA0Q1855659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13dcffac10c42550648cf1d8583773b4dc3b570c672569332d2a699fdc228c68. 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/AEA0Q1855660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd3dcb2a28add78ca8ba07c6a9815b5cd0c6c3dc3e1665e9aafce20611e9d16. 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/AEA0Q1855663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ed4a9eb5fa00ff30595505539c966beb5f1b33a15260ae3ac5e2fb6aad5c37. 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/AEA0D1801114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5216e93a4c4dd8aec8201952873abbdddafbd3b51bfa4e510d8cb490c2d7b7. 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/AEA0D1801095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c061cadaf19a3ce964d46f8b8c462216a43584e2baf988aab84db414002c27. 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/AEA0D1801097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e67adcb8e745b7c9f495ee8e7ef39537a7b84b887c88ef4216c4355a45381b. 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/AEA0D1801099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9bfc45cfc762888f327ac9a198853ae78146e7414af67051d82060fb82ea11. 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/AEA0D1801102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38519d98ddc9e5f2db1aeaa008cc0bd0caa92564e6e5d2cafd7f47230e9cea0f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AEA0D1801103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d0a2d9a37d47694dd7a03e3c0e610b0e0bfe44568c39b27e574ada8653958c. 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/AEA0Q1849560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c526f0167e919dc13a92ccecbff2fb7b9ecc2cd0b58ecc51e763ce8941c5cdf. 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/AEA0Q1849563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba59f533b0506bde7fd5fd37cca73a9b64ca970e536e0fc7c13a7ec21db536f. 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/AEA0D1801118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ce07818b918d5856f4ca9aa87560c3578add0d7ff036e85f6c67c7a7fb3391. 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/AEA0D1801119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888f6f6747995e4f296607cc90383d9b61b3f206b86d30ee209332f057121881. 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/ESA012411787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7189a304f9219a67d22d110d5c97eeee4c74acbf62872892092c45757c8b8d94. 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/ESA012401903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b908e7a2398e4ab1a49385c0f907b46975b4607b6bfa6705385c4a5ce84d1f. 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/ESA012404581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac43dec24e80216c46a4c3614c536a487cc1db9df62d20bd2aedd7b50e19acba. 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/ESA012401708.