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 0xeb378f72328ef88554cd9c662c0930b67642552799ad00df8152144c595e3c00. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83afd92e-378a-461c-aef5-bb7f5114f62e.json and https://artists.proofprofile.net/proofs/artist/83afd92e-378a-461c-aef5-bb7f5114f62e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sister Golden Hair "Covers in Isolation"
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 0xea4e243328b4d83066c2c953907a9da43cd7a764991997d220a2d6d2e4d4e38a. 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/ES64E2478234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdabd25e5f2c62db5ed1f0d693654e056b4c6f9b9ff6f0b1e883616e03f1848. 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/ES64E2478237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb54bf0b8236c958cd6191785851ce569a667c7532b5f30d9857f3be56aa9a27. 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/ES64E2478238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe04df33bd9350ac6592af10f6f3905f18c23ac579148f2a7483eb4083587ac55. 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/ES64E2478245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed9b51c3f5fb35a92ca8903a7e896a55d1dd6893170143ceaec88882f5fe3b37. 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/ES64E2478239.
It Never Rains in Southern California - Remastered
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d98126eea3377f727cf33e0bed524d3c5f87f8b41f1735c551f0e2493382806. 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/ES64E2479067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a283e75637be671a6f821a447cbfbda97b0b8f6ca95c2496a50a2d24f845edc. 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/ES64E2478243.