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 0x779c06a96465eea6c4b3564003baf8bcb9ec0f2e7b01dd3df37374e4d132c52b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/514cc634-7394-42b8-8553-047d7c866183.json and https://artists.proofprofile.net/proofs/artist/514cc634-7394-42b8-8553-047d7c866183.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 0xf53351ff96903deb6ba21a2729c7b911b85b346455cb1e113109e89b95b1a1e2. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCAJS2581547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cf44229cb4a74667a29dc8250c490d588a0dacc7434a67a7fc59da92028252. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCAJU2526136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c778f2ccc3e5f8f98de202dfc7f2fb6dbe2552bd721632a5434408634675704. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/TCAJU2526099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bbc071e47d46c846bfa1fecbaa4756a4e208b58aa8c6bfdf5403d510d7b564a. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCAJU2526154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a49da46e21f866fb3c9fccd4037cfbda3e4af35acab60ec1701584b5a772865. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCAJT2526203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd994047f0bdb0e05da7aefc315fd77f6e3cb3517053fdfb6da1826a8975646. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:31:12Z), 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/TCAJU2526176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821a0a733b15ecabd8f201ce6efbb750cc26c6212ede89ce20abca3a01cd1e15. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:46:35Z), 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/TCAJT2559146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbaea744a1ccf8eb8be7602ec48ea29c1d36e6fe344f17d40f4a53ffb1832584. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCAJT2559183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a66b022a6af6065b95d742b6b2e199f7861bd248165731ca7e306cf22586ea6. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/TCAJT2559218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1788a46ae79e7f68a0c1ee2d3f4ee050295cf42f80010c56813f64e6082e43. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCAJU2506306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03be63d54f70a5b99bed66ab69a19ee7b1ba64c29dae66ce2bace9383ee0699c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAJU2506207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc68a1b557093d88e5a2fb788b805f3a403994a375c005c59e76f59cccd3d8fc1. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:58:28Z), 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/TCAJU2506268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d37178c236c9a1c4008f9023eb8263f8987e567fa55eef7f4e035da20cb5c10. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCAJX2522128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26731c6b26035895d414665865b1407013f41aa5f0f6e54c3d054dfc76c957f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:04:34Z), 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/TCAJW2578221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f2f3ed4c5ed2f8d8f43ac82d73e5c2e9f65cbcfad16c12cc2ed2eecb1680d95. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJX2578244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8cd80e4a9ed527b9d7abd0bc42fa15c2f75081f729a285bd2a05aa934d2c19. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAJY2502722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd348f76db1840740609fe0dc0bd8c354fe37b6a93437c216ffd1de3d4882631. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAJX2545472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb0ffe47a066110828c92baacaccd10958aabf84780d87c5298b7d2b9f4e3dc. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCAJY2545443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867b956ec7dc963911f7222929ebda6e4e459a8afd4579da89ec971c7bd5f781. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCAJX2581045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0db51e98e634fab0a8ef88087db01d46b0c29cc94837915eb9587c63f5f9eb4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAJY2514530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc0ab205118735bf10ffbb21119a465c5ce707aa60ef532ef6ed414277378580. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJY2514574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c36e70f3903a293deb6d8475e4b540745a5b65b93a24908dba4c42585cb8ab. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCAJZ2568732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf981e14adcf282aff1cfc3a60a06f0f6948a08879ad54ec034044af74ae5d90c. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAJY2568751.