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 0xf3048279ee21f02dab90a80bb35ea5ec1c7b30e2088c31207d419dab5256249c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f10f3b16-7230-48d6-9f3f-2e97acd81bd1.json and https://artists.proofprofile.net/proofs/artist/f10f3b16-7230-48d6-9f3f-2e97acd81bd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
If You Think Youre Safe Just Remember I’m Out There.
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 0x6e3d72a47d80cbb9275e4944c2c1d41452f4fea7b1f9696beabcba367ab7bcfe. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZHN32428796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cab71c71fe13caf64e878fad4b858644d9adb268279a765fdaa66f3f965040. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN52421129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee397609ca585ed0130f82dedb97ce908168ba7b31a797261410598285058edb. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZHN72434728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf880bef63dae16ab8edbdcc596c0c3cd3dba21858084b42014fbfeca3a386fe3. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZHN92406113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cab71c71fe13caf64e878fad4b858644d9adb268279a765fdaa66f3f965040. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZHN52421129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94cc4ab61123221f8b94928871e56943c601dfd1fab130721ad78cb6bebc403. 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/QZHN92406118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb85357d3c66adcf870fbf12d3e6ec3de75a4cac56edfe5704b4b6c98d22f39f8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZHN92406119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6dc8e9c7674029016dcf80bd28ad6ca0be5337defb591c10752c396eb17a38. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZHN92406120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1403af618bb77f635a58e54384cf5cdb590e349a4657e6893ab630655cd8fa. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:47:34Z), 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/QZHN92406121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829bf71c8407dc7814b45cd7e96ffd004e77c80cdde462ae108053dd5548ab9f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:46:16Z), 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/QZHN92406123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8920456f538722a5d6425cd5243a48091b40b7d83ad1adc33040ba16bf681c4a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZK6K2433989.