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 0x3ed35fc2accb6c224d366ce38dfe268018f4ec31cce3527c8f7899f5129b37af. Chain 2 (Bitcoin): anchored in block 953772 (2026-06-15T10:33:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6c1ffde-f073-429a-b891-d9e144a33991.json and https://artists.proofprofile.net/proofs/artist/c6c1ffde-f073-429a-b891-d9e144a33991.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 0xf113a6c7a4c6a2ca2957b1d717d695f93dfc2a84b447c42e76e43a712bf457df. 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/MYWT11655358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86484f0a61e55b28499c76573d570364e32d2dc3526ccfde2d0f06f113de8032. 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/MYWT11655360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d88b4feec88ef983cc2201a185c9db935bb1e6af15696dcb3882f09828ecdd7. 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/MYWT11655367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5b7c41abc887505d741f012f2721576c8c4455dbaa74422e577e449f2cab45. 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/MYWT11255224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee7d178c8ec6a43a1aaa31371fe28d68ee97aa9910085e688e63a83be2d70a9. 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/MYWT11255225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65542f256856f0172eb4f8a486669575e734015efea2f4b31ccaa4c458030b7. 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/CNZ331604210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce084c884484b80753fdd11300d7207ba1c436876da00f770593ab4393f472f4. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/CNZ331604196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8167b594ab60084d5dd8b8b6935aed0c93828447c43a6d985eee470231d2eb5. 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/CNZ331604194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a405a28059ef86c952748a5791e9ab4d0fcdbc1513acfdfc4077b479bd3fba. 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/CNZ331604193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6562b3d1c2752db2243585b4a89391c3e7e9912fb58d6f23dbf0e2afa645dc5e. 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/CNZ331604191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00058e6f497b636af63574ae0cc977afc392d0e6622b199ed36d2a289521c3b7. 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/CNZ331700027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88d893f752454c2d29a0f4a018d905500c1ae6bf5704441ca139abb8296340a. 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/MYWT10980049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e2a7c8142be47c51356d04def443f2799f6022bd5115185909e650a3172a906. 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/MYWT10980052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b203fbd18c96867c9dd259cd9d7f3ee695c7e4086fe1235eb556f3985134051. 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/MYWT10980056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf651a3f52fc7852b2aef963d8e7952b82b5ff9ea439c807d2aba7e2ab1e6cfe3. 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/MYWT10980060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b013ac2ed1cb34bf8f356dbea9533d10e5b0b0af7705c585630ce0a4908edd. 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/MYWT10955001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470276776fcb62ed2f010afc97771d0945f011c2a0f731e6e6122527c036a71a. 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/MYWT10955009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29f2975bb2f6c3ab17ae4256b9fdb1201c4be1bd4a7c34934930484ace89dfd1. 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/MYWT10780022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21fd235f9568dad26e0c1775c8a7df811f37fabf21d4177bf073b3b44bd64f8a. 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/MYWT10780023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ab02d96f44a452f2d801ef027faadac6fc873a1e949985795a7193a96ad562. 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/MYWT10755010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7b1ca362c5e2304625c93e540ac32fd9e5b24e821914bf1583909c92939a9c. 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/MYWT10650616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c3dee719d24702656cb4ae157056ccd9abb889b461bd432d12eff5d83e7757. 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/MYWT10650622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d13798234f81b29d973aac0eeaf473cd6a3b34c684200a4e50c29f8d14d08e. 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/MYWT11455334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a439edabf8d2dfb9075fefcd94f71de44dcd4cb43ab2c9db252642a3d3cb7d. 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/MYWT10680029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83d89c2236182efbcd8b8cbfe87d72366893c58cdfd36c137df4f6b332340edb. 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/MYWT10680030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c4f91a1493ef41a484a46af73ae92fcf8a326a1b0da5a1b5385d90ff4ccec6. 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/MYWT10680035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178c0b3835e915d473cb2046deadef59c79c2075f1b198c50544000e83e2b355. 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/MYWT10680039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c25fe24e1644f6a658fc0ba1deeaa7793a4c11cc2ce27390723993c2e633d07. 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/MYWT10550265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd97dfe4454e3a604db62a57111f83661de329bad8eff4a21ae70e1b2581c518. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/MYM611900096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18aa9260825a0a05532b8c27b3d747f66511cf14954448d157a5f37bfe435be5. 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/MYM611900097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e143fe8c4b098afc938ec71487cd0cc50c0c7bee844e8bada962985704e08f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYM611900099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ff3623eea3fbeb469ccda4d6aa343473fd7269aea2bed4392acb07227f916f. 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/MYM611900100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1beea1c25b6f65f80a17ec86dfd40142e86843b03ccb963e0e32d217b71d9eec. 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/MYM611900101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8a76f683651e5126d4ecf12c73516ce81b12fd6fb095b87e5e96e1c2e0d2104. 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/MYM611900102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfa8c1d4885e44b6d85a32b3e4dddee1f002188223252171385c9ba8cfde590. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/MYM611900103.