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 0xea1f67cb4e65a7a9df03d6287a41b27a18cfc0e6b51390caf1f6e1bb082cac20. 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/ee7853dd-4fc8-4b2d-a34d-8bde26d05e6e.json and https://artists.proofprofile.net/proofs/artist/ee7853dd-4fc8-4b2d-a34d-8bde26d05e6e.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 0xbaf5d2c71b264e6033bd94c918d9c3b29927b5134f242f513697089d2ccf53dc. 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/DEVU51739462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe28f532cc569b795cc62ff35987b7a1fe623b230f39cb8827736b3f929aea7c4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEVU51739463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b241c525929a52b7d8958b8a2b1580c86c64458c6b062a6f11af43ceb428089. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/GBBLY8300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4e90173f7e2e12bf2605ba85d77154902ab7557dae0efe089049318698933f. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/NLP438290007.
Native Love (Step By Step) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabed5c12db5c6a34590d612d7085fb6c109111167e016782ad2dc7018e2342f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/NLP438290008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6072db23e36c92452b571e39a5f66365a1082605c6bf369edc7affbcc3dcdb7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBBLY8300239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a79b6a507b31a9b240d487c4322ce7aa13aec44e2bd1a7fb350ee02f351466b. 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/CAU110511329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a66eb745ff1ccfac74e253aa9e20f25634c2034858115124371433bef94c2b3. 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/CAU110511334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bc33674fef860a515ceda94a39908e78a7afcf7a80bf3d117a55c7c0c96780. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/NLP431900004.
Native Love (Step By Step) [12 Inch Classics]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036939164c20112c0e1bb5f490e381d2138960640ab7e68a946a1fd13b1e2b6c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/CAU118213650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc64fc452d45c84e86f49d65b94ea8d79765e5f345cd65a1548655d5d7802de. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBBLY8300237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313c8a64523ac5a28342b530d3286d87cabaf0e4c6b7b057d1343d98575e9dcd. 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/NLP438590001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b241c525929a52b7d8958b8a2b1580c86c64458c6b062a6f11af43ceb428089. Chain 2 (Bitcoin): anchored in block 958911 (2026-07-20T16:46:31Z), 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/GBBLY8300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53688e4729b33a66feccf7618170e5877f8859cc199bddcd49df060595caf09. 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/NLP438290003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef338091288bec822a79728be80188919776ad4c6f4aaed0cdeec283814c7f6f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NLP438490004.
Native Love (Step By Step) - Original Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x046d2c80d00d88d546afe206047dad59aa9f1c287dcc5f555a8574951216de53. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GBBLY8200274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3176dbdc52b205e1c23b7bf5311bda23f15ae9d7481a2347c0cce6d4bd6ca0a. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBPFN0600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3543ef7ae49c524df663ee639c7ebe0f2e87c080fd83245bdd4a678a51d5ea5. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/GBPFN0600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd61bfc1688b3e14e22954b5563e7fd7282cd12a6545f654f62736410c2fc328. 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/GBPFN0600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33368141e9ff8cb1479b8f8065284a640b2fb8eb9858c1649cccd01f276ac8ba. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBPFN0600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c83f9897586ddd61d6d91b0cd7885d55810bb0d3905f2c6771081393c342d0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/GBPFN0600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbebbf76ab46290855a66929d61d946fc08ab186d540deec54deb0712e37c40. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBPFN0600010.
You Think You're a Man (2024 Club Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac53d27a972956e23bf8b56f5677a5554856437976c1793ce128a31c11c913f5. 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/NLP438900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3371e6ccd353a063c62705ed0074be9033e977512d925ee2a2ea43f1bf3ee6b6. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/NLP438900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34758744239b86c3b81c6d409de6451f785cd79a82743c86e3b479b73efcd853. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/USBKY0527116.