thumb|260px|Arnaut in Cairo, a painting by Jean-Léon Gérôme thumb|260px|Prayer in the house of an Arnaut chief, by Jean-Léon Gérôme, 1857. Arnaut () is a Turkish ethnonym used to denote Albanians. Ar
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f3749a3fa1c52c023bf79e20673dfe966d5b50a5e27e176ed0a34e996f304c. 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/3b727d3a-ff50-4fdd-8baf-64f03632f5e8.json and https://artists.proofprofile.net/proofs/artist/3b727d3a-ff50-4fdd-8baf-64f03632f5e8.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 → 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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ad8a384e72a6eba71258eae2ef9fa524ffb7f5faa096c679b9c3489246ed994. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/SE5IB2298436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4481e24cb0feca1aa5b95e36f151ad468c53148e5b5bc6080e11c012216a8c68. 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/SE5IB2298432.
The Guiding Star - Affirmation Frequencies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f273235fc3dad5bd8a5a3fc5a0feaa492b3a14846e689ad60272306c8f8b3c. 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/QZP7F2524335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffda7920c00b4db21cb12df49edf1c4362b310b6fe655d6621d53e6570121dfb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZP7F2508284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffb2bcdf139c166d0e0a4b0554157b054c2024cfbfcfa6622a95995c893d376. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZP7F2508285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dab9ec8aa5f05ce24fddc153d6844dcfab64195e5d22a1b5fa60942224015a. 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/QZP7F2508286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd1170448f87159cc1c5cc061dfc15e121fd0e59a7268c31d202f5522e4ec0b. 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/QZP7F2508287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ba2c4ab3d962271787e2eb431572abf0baa01c0d3925cce422132a1bcbcafb. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZP7F2508288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8db6184bacd5cf65f246c621c9df653d6f78c2f1d67936d5ad416eb31b40306. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZP7F2508289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39585e2f5968a550e0d8afa64d4be3a71f729bbfa6c77c84d9a327b9450a5ec. 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/QZP7F2508290.
Embrace the Shift - 333 Hz for Inner Change
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff33bcf33107d5a990ef23b435a235ac189121b42893c396eb3d83222bc07567. 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/QZP7F2501001.