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 0x3398d81ec4b86c38c0f1bff2c508be793f841a4c585cf1e8601bc846284f081f. 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/68cc2914-d486-410a-858d-6c0f81e3aab5.json and https://artists.proofprofile.net/proofs/artist/68cc2914-d486-410a-858d-6c0f81e3aab5.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 0xe1576e36a301704265729f2f6b129c2e48fa6feff3a6b038bd723d8b42c6aa76. 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/QZES51841111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c723a0961c8ea6e16c03276baa2167595edd11f0dabea6daf397a7c32a9278b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZES51842779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693ebf9298ed9c2410cd98d756557ded55996a471115765532f3479ec933f772. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:51:30Z), 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/QZES71848756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cd58a93f7374d5ab468cc03ea1469283d05d979fdc123ffe66cacde3f56949. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZES81881388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393477216b6ba83d045651a5a685032a2ef566296f0682200930b31d7016a21d. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZES51969677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5571325823cd1d4854cd4104cde5dd0f81c3817e7572ac0990eed6296b9ca8. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZFYX2086221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958cb2c022cbf7e71ef26b9bc9cf2149ae542f91e7b6f5ddf8fc96143ee1cce3. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZK6M2080783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b6e132b530010f0d32d6be84652e46999d903bd47d150797bdfe125d1721565. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZK6L2016016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c69d7a5a21af8603086edc63bd4fbc311f27bf166c8f541cdd62bbee81eb08. 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/QZMEN2121544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c87a859a6a2d85767cb3d1edbdefb8824b4d5d357d317b84a06b2c281be0cf6. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/QZK6H2169022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41adfb0efe92d3046de95f99ece1e2ba3acd2b26e078777a8288a08a6175c36c. 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/QZHNB2171319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be973e68f7c0b2a5f53c673c7069b37098cd9b9422b48e5c21eaab5d44be817. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/QZMEQ2147852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab955098fcf522085d173942e389a00b974ea71b010e0088c692218314ce6e4d. 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/QZK6J2140198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4287b450e49c9901da2065fca59345f12bb754ddd92f737081a3fa1cda8cc74a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZK6G2172081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2eb4dc1a52b60baf34b94eb8a74fa4547ac33b49e138c546f0b1e7c0efb003. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:16:47Z), 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/QZK6F2185621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc555c0120b44b9d1f1af1b6847fbba88192afa8bbbfe91b839ae0adb87369ca1. 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/QZNWQ2185590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x109ba95320200ceb0084e5e44d7c1e2b005d1b5d7ff904b9f29dd04d63d590a8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZRP42134945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe40e4e7835102c0964e98b4db01accdcaed5231d6f120b0c7a75838cc3ee9f3. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZWFT2498630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e09fa43a089449ad7831482aa2ff797b60a2945d2f72fcca6af5f9a356aba0. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZHN32552685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda73dc3079913ee474e6c7170412229f0fb147b9ced897c135bd5d8fdc806474. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZHN32552686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ed256f186715d33895a5ab01961b7e9088e6a048e3e46b86787a664b5a7a71. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZHN32552688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd704cbcaa63160f7317f4c9f019a3b3618219622351c04c00b49ae483ec89945. 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/QZHN32552690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c1a7bfc8a04cc1faa1bccf3845fda55c28a7ff2c4724d046597c1269150c2b4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHN32552692.
When it's dark outside vol.1 (Instrumental)