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 0x6117d9e28c2379d5151ce3f2211f23e9c51c6a0a067aca65d9add3dfb9d39d5c. 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/0668471d-1557-43a1-aaeb-ec7dfc2661ca.json and https://artists.proofprofile.net/proofs/artist/0668471d-1557-43a1-aaeb-ec7dfc2661ca.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 0xfa68388e71b61532f1e715f23bd2986351fe0f240fd58a20f92eb2908157c945. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TCADX1843089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa68388e71b61532f1e715f23bd2986351fe0f240fd58a20f92eb2908157c945. 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/TCADX1843089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5cbb7dba5d1249ed174adab3c08a6441c70ecfe71b7773b2b7c730041162ed. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USUYG1373664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6ef32c0d87db6e116d5ff9beffec52cc0f9dddbb0e144eb8f85b61be71792e. 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/USUYG1388219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0584f96014460d599ec833fe94f6b7a9ba69bbc48e5a7477e457d91b1e3fabd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZK6H2207124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c4ee47c2d871d3e0d5dca7b06b02d4ae4fc8a5c8cddf6820ee536b242e01a5. 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/QZTBF2441399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9aa7f3695f6f990df1501e43ab1ee90c1c6dbd3b3474d11ada87aedd0c717ae. 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/QZFYZ2550566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e60259882fb61f7505084ff1e578c5fb59dfb31d32fb3376f09683a7446baf. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMFME2357616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57103ebad246dd04aebd60b6d97ac80ffc8a810ef92e53bc67fe094d0112ece1. 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/USUYG1311010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2e1a586a2b8b839a19533c1f8b341337c1dda18af471896210e441def9f493. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1254268.
Ventalation (feat. RJmrLA, $tupid Young & Azjah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c65a8e8abdb8ffdfc3442ca0e6051fd6c766e916460cf6caae54acbe22c0bbc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USUYG1266892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdb73366a5d5818da1e4a7aa58b281736c2726e7fcb0a353a087bae70188cae. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZ46Z2000020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57103ebad246dd04aebd60b6d97ac80ffc8a810ef92e53bc67fe094d0112ece1. 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/USUYG1311010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f85081deb44177c9369df7a799817351f9b9455cbe0ad440a1b01337d9910c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USUYG1281714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b58a8230a70c9ec0167c99a19eeccfd1d2125b3c72015b84c0c53ca197a013. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USUYG1294272.
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 0x942c6983afed924965a675353236f6f2b1896b5e3e094748d179184f8279550d. 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/QZHNC2002850.
Push To Start (feat. MBnel, Chris O'Bannon & Azjah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02fbb658bd68128c3fbe1e2c19e27d647ccb71e676e4e4713dcfac40067da8f. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/USUYG1321497.