1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xb3ddf8216fd61df48b0315186729e4635ec87b1be0835027d713fd52cf8d6bd4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/339fd88a-9e54-475a-a241-fef5f11cecd0.json and https://artists.proofprofile.net/proofs/artist/339fd88a-9e54-475a-a241-fef5f11cecd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Warning Sign (From the Lifetime Original Movie "Bad Stepmother")
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 → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xc1c65c597d2e500e456020e1284f2a16fc4e88374c978a0c0b07a8625bbd96e3. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCADT1879511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6711e15ba53121081b76ef882204e9f16c731363b2ece8763fea66a134026798. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZHZ31961883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bdbd1ddca2d31f8e6a937d7dc3ee5a3b3617ee3d72d8782e2650ee648a14ec. 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/QZGLM2006006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956d211d28315cc8c33acf8e4c8cd56cf1e02c2191008e30030cea605d814cb3. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZHZ62054813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde095b0362bc4b46e781979d0062d6d693c9a6e7afab3f78e0a682dca6981cf3. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNJY2046464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58f1b0deef721614f8f9c107597cc90c37f3122672698e5143b1de64343ba4b2. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZNJV2167068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec6e5a56bd841ce62db8d015a0a4930a59db674845e43cc58d410713b9d55fe. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:54:42Z), 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/QZTVM2140099.
Never Like This (From “American Song Contest”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e29ba83c8e6c83e0594a1216db1a74f917292b42926e1e03f48848d5505c081. 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/QZHZ52286951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ccf3ffa9587e42521a549ba603d93048f9798a74c82630e5acefda7ff806456. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNJY2307801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb981923ee14f6730b6be981d42e7bd1784d2f1f582eeacfaff6dd60444ff5c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZGLM2425406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3be2d5e3c7b83a6725340ff55846e0d8649f68441989d8c3133e27100140a7. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USAT22202247.