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 0xd949c09bfa335f2a67ab0b3da0e622ddfdf68c6578416b764893aead99014fdf. 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/85ef56c1-d746-4a80-a013-b906cc09216d.json and https://artists.proofprofile.net/proofs/artist/85ef56c1-d746-4a80-a013-b906cc09216d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ella Luce Su Tobillera (Zena Lepset Jen Hala)
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 0x2554695f04d956f6c9310e1a6ec6c2b75195f5ca7d850cc110d420d46132d883. 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/DELV41900500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad08cb207cc19e428484e76684f8781365ad466f83f0c1f5a099acf7e762ed3d. 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/DELV41900502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4393beaee5afd101e25476613041b56a1386407ec5d2bc25d4d6bc40990c171b. 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/DELV41900503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf824549d86c94d15adaa7fb0173928712919b999e2a1f4f38024dbd52938b0d9. 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/DELV41900505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0816810aea3e75509e48fe98f1f0fa70e682c4ae49f3e15234c64ca652b8087. 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/DELV41900507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141173e50770bb702fc4420b14076855911fe28376fc700b775a234d23d11fe8. 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/DELV41900508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d88e2a2236f88bc9d371320ed60b1854c92ba0d49b795052632a59e3d9ccf0. 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/DELV41900509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69809eaf4d34e576a7f878a762d817ebdddbb284728d5f44b98e3d6c0fa6539. 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/DELV41900511.