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 0x65dd6106df26553f5493e1387692dcbb1626ac9748ffc6c2b04d5de4b5dd12ba. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c486d46f-507e-42fc-9b8a-8502155407ea.json and https://artists.proofprofile.net/proofs/artist/c486d46f-507e-42fc-9b8a-8502155407ea.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 0xa605221c57e669bd0e955d3ae8b1bd19f457c8dfcb76e4bd32300db24d767a60. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZNWT2073189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49c068f9c7a75c13ef41f41404b12f3a977f7409a3e674eb96ee0e37e6d10672. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZHN32171551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9339ca800efdc6d680cd218c804bce7b5106e9865d512a1aa39c2284a3fe289c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZNWX2036742.
Don't Wanna Fuck With Us (feat. Undexd & RuKang)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d9a7d020057920a7bc366ee11d28818011a0be329e9291a8174b1a900b4822. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNWV2139187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb482bd8f1d161b3e018b051819a5f99a37192b17cbcb0a9d6f54dc995494cbcc. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:47:11Z), 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/QZPLR2173479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56e712587a9e0367e6e39ade1fe8e19ca7ffdac259c69b2ac6fd123253e3710. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZNWS2128131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecea45b40163ba7bf6d043054e1c0c43e44fb57117343406ea48774d563d4f4. 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/QZHN62215421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7307a06ab5a0d6f918bd0de484e1bf1f2078dc433ee44b22a23e041c3fcead. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZDA52321298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c47dea5127ba7351d8c8820082c97d28baf780849828c47fc8c361105989b03. 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/QZQAY2378376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ecaed70d3fc2ab4953405ecd033d45ebac222dc63527e70035874e4d707db9. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:38:54Z), 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/QZRUP2400482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc953fa55bc25f76039c0e1ae6838693dae013f92c77b8b561bca3e4a6e1fb6ab. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZRUP2400486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710020466b69ced78c9b6aa246e1429a23c27251113ac89418bf2239c76187d1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZRUP2400487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dffed4797995b11367b36143f83fa1ecbbb637b903b2c8c2a8c5bd1359f03a8. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZFZ72500822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dffed4797995b11367b36143f83fa1ecbbb637b903b2c8c2a8c5bd1359f03a8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:30:12Z), 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/QZFZ72500822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dffed4797995b11367b36143f83fa1ecbbb637b903b2c8c2a8c5bd1359f03a8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZFZ72500822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95cc672d495e720630accd61ddd0c308c25951e9365c74907f7e70cc856706f. 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/QZRUP2500102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3804d2e14edca992f8d6f18fb492147f51ad9c4b6539747deb495f0010ac4d. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/QZRUP2500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777420304476b0ca2a9de4c3669838751f8a3b3ce98a6265f2bd31bea36c4474. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZRUP2500295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4426e58c6cb55fd4c7dd6aa4f6f73f5bbc753c41d8f94468dc12f801e1641228. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/QZRUP2500296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc296c2b9807738ed8aaa086063616228c6fb941de9c920d81d308d93dd9ac46c. 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/QT3F32589724.