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 0x789d46b385909fa49a68d18be8d2d78dc7d75f05eb55c2269f5d88878b3a5b1e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/589697dd-a872-413a-8a98-11cbd051d470.json and https://artists.proofprofile.net/proofs/artist/589697dd-a872-413a-8a98-11cbd051d470.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aad4377bf73d876f24e40d67a0c1daff33f58ae505ff6cc57f08c9c9c2f78c2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZYFZ2333061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72348adcc3e0c3cb5c02127cbfc0f0f3b51f6abacb23c56280426a590369e4ec. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:32:16Z), 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/QZYFZ2335304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7928d1f2c7a5ce4ac08ec1d9232f0e836357c1d7e50e0c1b0eee152fa246c8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZYFZ2347702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2b64086c5ce46cf85d77fac0e80cbfcbf2bb0be33227ae0fec92ca8840c686. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZZ662303549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa75e3b2ef30f5faeeed79e7c6e3e54b6b24f8044762958838405f882c140c71. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T21:01:38Z), 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/QZYFZ2398115.
DJ KUTIMANG TIMANG ADIKU SAYANG BREAKBEAT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d7fafcd23267a24395a3479fe88fa43d448ece4576466f2e80e01501fc04230. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZZ662308367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd99125ca52255131fbe697986ab53f1d5e8c61b7e8c2ae61fb2d78a1c4d3017. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:42:26Z), 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/QZZ662308675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cc33c4c58ac5fa66682f2bb82fd585f0a5217caca8fe36aa8091dde7a13e36. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:33:21Z), 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/QZZ662314350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6816a31c48510f193f866cfe9720588664cd1669db11be3a3b87769718df8b4e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZZ662324657.
DJ Cincin Permato Dijarih Manih Breakbeat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x252b940f288e8bc795c63c4ef01f782f13ee7305e834184f19b3bc48ae905b95. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ662341244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13357224b7e6d41329f6a2d6223c5992ce71ef91c54986c676b13625ebb4e9c2. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:59:02Z), 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/QZZ662354816.
DJ ALAH BAPAGA MANGKO KA PATAH BREAKBEAT
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf55db9595270cdbbe5cff0f22c3fd81a5a6f32f4f22d254f667559f4b969ad3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ662449229.