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 0xa3d90579996efc66bf46997a6df98ef982ae43bc11196628d8c88d54eecf04b8. 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/5222222b-2b2d-4eff-94f8-6608f3427df0.json and https://artists.proofprofile.net/proofs/artist/5222222b-2b2d-4eff-94f8-6608f3427df0.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 0xf0c062bc0010ffbc2d4b06b28c4bdcaca21973fbf072d6398e1e514582ce05ef. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GX5MY2298632.
I Kissed A Girl (slowed + reverb) [feat. R3YAN & Milan Gavris]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ef7967010017e1c7713a9b960e5c6b2f64bf43b58f63c6ec14eac448362f1e. 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/QZMHN2225447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc067ba5032904f1fb1a0d8e85108853d593ddda0ba0cb13531391fa361d41061. 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/SE6SA2309760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c41ff7f372d2131b7844c2e27e27e73f0dfe481fd58353a5cbb38d7f9908827. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/GX8KD2276994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4017bdcd8f6b2c56868727ab4ab5f5db248d500d5230ea00d9da8d4da12e8ad. 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/GX8KD2346864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141f80f5259d39845b497114217f6e737062fe4a5b50d320d111343efab857bc. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEPI82221397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7391dac5a9ef1ede766d8959deb0580abff748284c16737f7cf87dacfb4390. 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/UKZGC2303885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0969fb6ffe9fe604aab00f21becef7f586e98805e6d698c2433552d0a1966609. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/USLZJ2255405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfead539ac8080030ab4d5030dd8dc10bbacccf854898a10bf50af4bd56dfa671. 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/USA2P2116182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5439bd2b896ccc5e694e2bd7b0afcd5fcdb5c7cd7be11418bf4e1838ed5dda64. 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/NLRD52119907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a137dc611aab0083735e73d83cc1e8d6be587fca32a065c96dd897980ab66c2. 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/QM42K2247008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc511c09278c20ae0e2521c9f7a4375919b6f785e6b10ac1c235a68d5d660a1a0. 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/QZS652164388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8daf5ef949ecc88ae53f944d1977b66be19fc224cf79881ed8322c43bbdff3. 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/DK4YA2162801.
The Business (slowed + reverb) [feat. R3YAN & Benlon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x831bf665bbbb453c93163946ae9b5a1f922f0f7499d16a4704d0d7c417ccd3f0. 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/QZS662209683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0eae1a07745dcca55ec295685348361874d6b8e9851956d083d25280b80deb. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/GX8LD2326873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887d03ad28b6153f896807a8374c9e1c6cfadc9542321ca25ad4d211016de0f7. 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/QZS662200546.