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 0x8e50fbe6f7f0baf2a4fc5951eb3f18853da334cb4398e00bc57e6884174910be. 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/8b9bf076-1067-48da-8195-334e1a7dbebc.json and https://artists.proofprofile.net/proofs/artist/8b9bf076-1067-48da-8195-334e1a7dbebc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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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 0x482da80a0351697baab51b57d7c5e63fb3f22acd65d69f0526e296200d334ce5. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T03:18:17Z), 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/PLA282200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7e1edbd17f0c4cb61191f1ccc6584ba2cae5bede0a41377c109c1b96fcf8d7. 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/PLA282000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x482da80a0351697baab51b57d7c5e63fb3f22acd65d69f0526e296200d334ce5. 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/PLA282200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9feef83a50bfdf080e2ab49939cccef638deb08e73240672627d2089808d22c. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PLA282200157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee11c2e485a5e30aa962c0bfa3273893124a08afde730c6e306bdcff8c2d2802. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLA282200158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda00162c54bfde075c9fa512b59c76342850a87ababa316375636ad5a824a2e. 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/PLA281800101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68f1fa9f13f7c68c1d3db2a3e82d6768ee7402a871530802b1e90c4b1f22811a. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/PLA282100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d282c761956368f1a96f5d1fd0715dabdc056529182e4b115d16756f88a9394. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/PLA282200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9584c1165ed8494045cc80cfcf777d92164cf6a6eaa20d0e4a24b1fdab65bae. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/PLA282300059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e338bef63b8369959a9631798b925a7f265a27da9616792489b90c92dfcdd3c. 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/PLA282400154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353bd437fe835a2c84a0d7666aa0c0685a9041ef2a90686b05278e8b31cb486d. Chain 2 (Bitcoin): anchored in block 957668 (2026-07-12T06:54:37Z), 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/PLA282400158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea994261064cf0b526230718887491b3fc22e3998e4b4dd73b363effd39a57c3. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/PLA282400160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8696fef584e3c377fa191d9b87980ccb1423d67cca81960e419d2bce33b842df. 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/PLA282400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a4ec17d54b200374dd9636b161b1e7fb9aba60a7b002d699c398980dc01caf. 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/PLA281700148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95e04880f48aee9338c394610a411b35579e649e67f4a7765e9da1586244147. 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/PLA281700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe195c3aa649fb6ef0a7d2371f0fa207c906304f1a7cede3444fd613c5f2f8a27. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/PLA282500109.