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 0x2202326d8ff0756ca1b2235b26bf4bef8b1c7c82f7bfcc420ade0a48de83628d. 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/86d92162-de89-42ed-8a36-93e8da53cfeb.json and https://artists.proofprofile.net/proofs/artist/86d92162-de89-42ed-8a36-93e8da53cfeb.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 0x608f8c8a164de3d5eb3198a610d07e152f80e5030342f86df1ad5df30f4df715. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:57:58Z), 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/FR26V2028479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45aea348a7e85b52f179ffb8511ef27e5768c37d6fd5da942d0ce69e067c26bc. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DGA052031920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64adc12203512edb5a3116e9ba9e4b99ff9f9344dcf5b2dfc576a9da0b22233. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/MYLR12430082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee41bde8b0f0a01bb9379f5c44907d0bb418125c46bf4e6e5ee1405bde2636a7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX202178608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312b50fa36f5786d3f51d6f69b9e6f4e79d0307f688b4c346c06ec3889cfdbe1. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:22:23Z), 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/FRX282169394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6a26d2c06553fa0f1a8048bb830cfe1923bc28722085f9db953479ca8c2239. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MYLR12430112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbfb8fc3ce08825c2a11c461a637e8d6c33e9276780f2dad80461a4e24fb2c6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZN882177331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2768d029e5461cf32ed25b0341c67511d47fb5606488af8ed44ebf838847413. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), 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/FR59R2280068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43715108c4e89f0ad44c67f92870ced7350e1465bc617d904f79461662721c4d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/SGB502290486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23165e0eaa535bdd6ad94866e0bb5d0c677d6f193e20b718900fb103ee8aff94. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IDC302113350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c252d62a5a4eb94ce4d59be971e6ed639bb47e3fdf7b54d0b4740f17cbea90a. 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/SGB502344202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3499f80996a563ee5dedfe7a4ca8869910efefde064030f1ed8591cf02b49f2b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/MYLR12330037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc09d63962259f346ce3a94cc1f58d1ba11fb462fa2944b2226bb4417344488af. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/MYLR12330035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f0ce7522689f15c1c5843bbed28ddf0b2d17c72dc3afec4bffa225c36275eea. 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/IDA182335843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0416cbd9b1db8846d7479f2d4389483e22dbbe7f995305e56cd1f5f4b1e9929d. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/DGA0R2333217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f929d77802c047b261633c0120c4e00d44e9f35306dc2d5645da5b5fb6a322. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/IDA182400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3c7ed4c961d6e2c85069be1c180e31021e6bca00128902bd82ca5d4aea033a. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/MYLR12330036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd021b6dc41f620513ca9da01f01a3a865b92cc9a6e556ceb79088ce0363f7958. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/MYLR12430006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x651a9b4ed0530a109be9cf661231a228592de23bbcaf913b798fecd860516909. 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/FRX452525327.