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 0x2d9917d5cce910e74b92aa76c3fcc97bc32364c4262e0ce897ea78ce899909ca. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ccb4499a-1f2a-4e83-ae5b-e07a70cd5eab.json and https://artists.proofprofile.net/proofs/artist/ccb4499a-1f2a-4e83-ae5b-e07a70cd5eab.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 0xf69fa7595c8735e5631c4b36913ff6f54de6f2bcc4d86f2d4ae75c3dc99b0223. 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/QM4TW2343053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58b0eea0dc041fc79055f4cb6941968139bad0f66f112652488af0607923229. 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/QM4TX2399613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x278e2db7987d796cadfcee41e089c9bf918f986e16a6bfdc8f1ad2ae27c8901b. 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/QM4TX2399614.
SIX NIGHT IN CALIFORNIA (RIA BRATZ & DYGLEX)
COMPÁZ DEL CORAZÓN (CAYMEL & JC NICOLAS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf49d8c1d9c11d66075cf69f1c970794def7a4a3cdeba7b23cd296040444f5fb. 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/QM4TW2349143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6215fd54630d7160272af86c8b70495d272aef94ee5b32e0271e8f38977a390e. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/QM6MZ2266719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc992a1b5179b2a767be511823d658211df2c9fe5267159eb08aa283805a11d49. 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/QM4TW2349145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f956fc81c51003059b99330ab59a7f694817d617ca64f42d6f739e93e3b267. 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/QM4TW2349144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b971a1b99ff1d004f850932332bb3d934d6b8afa5d96edb1c26132cd6ce042. 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/QZHN82157960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1825d8914557b4c2ce74f2e4b7c9e6a00f7c79794f4cedc5ed4341a2b32a9e68. 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/QZQGC2400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ab09b9323b751176e95ef83043126e42c989c534dba7ae1bd88ed3229c6d1d. 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/QZQGC2400602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf414488c3dee6b964a5d1ca4c62af2dddd5c092649807fb56f6b9d2c5f359f. 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/QZQGC2400603.