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 0x1825e970dfe9f3b52ae76b0ff05cd54bb51f7f9ecc8bdadb2e2316a9c13fc3a0. 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/51acdeaa-a9aa-4073-b528-3ad361bbdcf9.json and https://artists.proofprofile.net/proofs/artist/51acdeaa-a9aa-4073-b528-3ad361bbdcf9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
If You're Happy and You Know It Clap Your Hands
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 0x2e5e9ff87cc1b70d81c39cbbee14565e224b3e3349030a9f3320b4578c6c70b7. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:10:31Z), 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/USHM22455953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfaccb97811773c8fb94091d80c2afd2ce7e2ee1d77e139467ec454cffded419. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USHM22455954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2e7a53066ab83ff1a5cc5cd84433e9df8033385653b137cea66d7197374de5. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USHM22455958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed032893c41a5e314f4744b39421ce23e206f990efd36e568eb09b3ef081056e. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USHM22455960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bd6d15f616d287b472815b03632b53168bb21e28e5fdd0e7a1c9e130e2847d. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:52:20Z), 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/USHM22455962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e6f212dd64b0ebea5723038cc63707c27edf629b265662a9bcf7d7bacb86cb1. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USHM22455964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f7b944193c3e50e2dbd837406e7fb5ca821af48d97101aa8fbf1a7e22e534f6. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:03:26Z), 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/USHM22455966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2af27de4b792bfd27816c039920eea0107e7a5a5b81026bf3cffdc72314cfa88. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USHM22455967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72545822998a656c7bbb6c5c00ca15db68062f3c4e82e7d2c38e9620f348299. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USHM22455968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa1b319528ea8c71512c9fc1accad67f48c0216e0db592d166aeff93a6983c7. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USHM22455969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa695f4064e8361c2b4a79b0b4aa86014b6d01fa086bcd3375327437f3697bf. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM22455973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491406d1a24e6d94c2d81d212d52f0acc03e7dbe7652c101a4c4005da974598d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM22455975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7848289e06885fb4553e2c53ed6f3d81bea136148b02ac332ee678348f349505. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM22455976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf736fc09267e7ca4b22d0840342a1edea66a86cfeb4a2d38ee4e392684d09c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USHM22455977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9101fbdc91f7297a6e935b5c098317123fe8e11b246cf36bad80e2bfebc7d3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM22455979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bc3999ed0ffc6537b91ec3e6463b953977382877cde876e7e52e676f7888a0. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:39:13Z), 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/USHM22455980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c91df794c89b6b68313297bce5a18946c289125672e678303d2272bb4fcd563. 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/USHM22455981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb93b82a729b5fb6cb31a11888fbd2c5a4a6e4527f742633fbca0a9321e8404. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USHM22455982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4bad3e4005ad59dbe5383b9b545cc95be4d6c12f11b35411c6c63b797cba94. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:17:15Z), 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/USHM22455985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560a35bc643fec9923da55ba147aaaca9760834d45512ecf57ad8cfa20f291be. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USHM22455988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebc008aa37f6e9821bcec4f5cf3931434976fcfeb95c7892e7d1aab77d1f9b7. 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/TCAJT2536063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25194559856a27b2d640dddf14229d1b7384771232edc353d30b9bfc2244541c. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:55:30Z), 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/TCAJT2536215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f559b1953605a416171f0a6948ec79e9ffa40467af1ca61728eaee2d7c70c9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAJT2536234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f559b1953605a416171f0a6948ec79e9ffa40467af1ca61728eaee2d7c70c9. 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/TCAJT2536234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6606109a4f4d89a7e27682b5e3b6831a3b79c1b86ff6c926b76cfece6762d43d. 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/TCAJT2536249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ae23e2a267554525cf2a3f7b01e392ec59788db73d80ed3aae86f15054221e. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:01:37Z), 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/TCAJW2563254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc4ca84639129a9151be815d26cfcaa39c6ecd29fff578d8d29d4d8092e8c5e5. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:58:23Z), 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/TCAJW2563261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f7a24a8cb29ef21d0c6085e116a7831b9993f878a89e1bc46c64eb69604b6a. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCAJW2563268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7abfa04be0a21aa96f45f34740d2c386b072572052a80c00694765761f1e1ee4. 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/TCAJW2563206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d81214eaf7432b67e8b7c38345676b7a9b12177363b89b9bea3e385a3e5f39. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/TCAJW2563295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdd3ead4636c219a0cb848cc99479184237ee7d7bf1329c470c167335d14d83. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAJW2563317.