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 0x28f4cb7c776b25a875c5b460639e198e1cf38cd82b06432e6b1a8a70de10b3db. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6126465-3ce1-4f4c-822d-4f551df359f8.json and https://artists.proofprofile.net/proofs/artist/e6126465-3ce1-4f4c-822d-4f551df359f8.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 0xa5e13ed95c8e47f546854e3452c8c8065d5c0ac87d3f46ce731268472816cbf4. 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/DEXO22357175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9d26a3eae685c63133c353f28074ca93987a43c32655cb2f7b3034e9ca5c09. 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/DEXO22357179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ab6a70a7f9a7c08fd3455b4db766e7ade33022365abfd5a4ea5022bba45d72. 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/DEXO22357187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x569c7141a79ad95453a970d08cb05e4b9468ac262b13c2299609dd04182508f7. 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/DEXO22357191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4e74730503932383b4ee5dcdaabda44b458e30a2a8215115fac0c7305531ce. 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/DEXO22357198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605c86d031b46e5b99c1417dddb73382720d5b179335b76c1ace0c82fa079837. 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/DEXO22357201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1645912e9c88a92b67d92b84ea6a1b618ddc89a4ffef1608fae8920823b15f2. 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/DEXO22357202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a1f00f3dce4acc31f08bbdb4e542370e2462a757973d80cf7c79790bc2dccc1. 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/DEXO22357204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616edfb6b18840c1074c4c35db6db8207e132b5ca35a5d4c851bb99a93cf0955. 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/DEXO22357205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d39a02c7821a9196aec41d68bea334fa40a7dcaa3b52d88b02e14238caf5719. 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/DEXO22357206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0509c04f3cf9f4e01107594130218168d4872be45188ff637473fb7c0315d1c. 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/DEXO22357207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa25ef4e8c0d58ed8b3701f4b83536679bf393e7b4f3b00cdebc4f1780a610e7a. 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/DEXO22357210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce249ba7708e8ea9c8faefb8fdbe683ccc65d2e0bb315f85f56f1f001ecc63af. 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/DEXO22357211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237150273f80204f8d2d5565b9ea9094afaabc36e58d82dbd8cdcc46701798b3. 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/DEXO22357213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfce395aae819352c7a6ebb23cfb616944cd8300883fce49dc0b67fac8dc0e830. 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/DEXO22357218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91454c1f878adeec482ceb41819c37eb63c48a1689c911898870bb22fe2aa34. 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/DEXO22357219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1983c1bca23f0f3e9a557c6e8bcf15fbcc2761798cf9d2a7cda3005eaaf632f9. 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/DEXO22357220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb46e42400bf91e1b9974dda1850f6f70a44edf0d6b808e6c6d0085d1f8f510. 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/DEXO22357223.