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 0x3f3acd0c27fbcfcdb9fa9f0ff1d865f165a9806228d20b8f1d3d05db9231fd21. 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/dc4f0906-d218-4b1c-b364-650865d1d86e.json and https://artists.proofprofile.net/proofs/artist/dc4f0906-d218-4b1c-b364-650865d1d86e.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 0xb1f084b2421782eeab3763713b1b78c9ac47c80815c1bc4f31e769ca3a47982e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLD91751606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53564ac6d7acb301fc401497f847cca0afd2ddab66f3cc4026d7a55e6389a9ee. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZK6N2312536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8974064baa7a24d2ff270b4049635a1c8c5613cf12e8f909fca365803a068c60. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZTB72287048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7db61d70517266cd05fdbf6141cc210a1d11f0ea96ffaf6bb6d79d6de4c202d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNWV2136989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9412b7b136e8c55755073e3e7426de079574b2dbbc90cc3fa59530485bcc5d. 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/QZK6K2151839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c7bd0223845396a2b2d27cf3c53a6ae36d5afc8842092f2b065ecf761d4a40. 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/QZNMV2241186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x923d4cd4364d86830ffea44453cc71fcb4a2c6c09afd3f9a61cdff2b9535afa2. 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/QZNMT2282606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8faace39f26782662356ba26ef61f0b0138a628ab4afbba66dd68bbaa867575d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLD91749316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbae3e16e03f32e199fc602bf24ceb6d0646eac9454d41ea5b575eadf19039d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNMZ2246675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a24377a46ba43f6c9d7ede401bee08745930694be9b54362682978dfc8411e7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZK6H2383465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa8193bc19664663fd07b966baeaf5563fc408646f6a7b71f588884f482b43f. 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/QZNMU2356568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c22df3017b699772677af8d91f97ee1c687974fd7a357509490f095a9eb34e. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAHX2474565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f0c5d75a24b630a8d36b106d469d1e75f64ff4bcb46dcd1fbdb27910b37e4f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAHW2474523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56efe01a480d5b971d61484bfb78ea336d8a091694c83ce464b6b7766dcb487a. 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/USLD91756343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x999e6c6377b6eab3ca5e238d3f04ba6a4b98f650cfd2cd51a95a7bddc5229457. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLD91760021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0b6cb762e5ce715b4f5f4d8b399b20d6424aae3a89ec4a2067228594173ca4. 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/USLD91754715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00722ae071d90de634f3870255dfa1fb17ee45d18011e60287d55bcf303e22b7. 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/USLD91756621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905a3fdb89a1b49483c5eb1dc828383ee1026c6cb1dbf42646028bfa308e8583. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USLD91756216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56efe01a480d5b971d61484bfb78ea336d8a091694c83ce464b6b7766dcb487a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLD91756343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149d63912da0e1187889e07dec38fe9a36ac4d06370ab6374dc868aca07ba65e. 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/USLD91760765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72482dd6e66113c55277ad056ccf7e59022171bd1d098d9bbd4f16ffee147ddc. 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/USLD91757918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x905a3fdb89a1b49483c5eb1dc828383ee1026c6cb1dbf42646028bfa308e8583. 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/USLD91756216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x490e7b0c37914424baf2675bd162b08e61b805959f44d7fa7092c3a7543a7e23. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAHU2491816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6707d0bdab248c95e0a360f2e150b56011e9a9fba7b9179bdadacd6a9e30e34. 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/QZTLA2499447.
Lifestyle (feat. Jemouri & DJ Primetime)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5b639661deaac924694ac6a0970b21ca529b496afca87e2e5fb0d5858c3dab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USLD91749088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f35f6076cf47e4a2bdf9e8e000865cc8312ace3b6578e2d36c0464a8ae94d77. 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/USLD91747591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c9a6f5a60cb238fa950e1910e04200fc2ed928afb126dc0daa82e0e8547b76. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USLD91747166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93317a3b4d1c473029e9a52e63b1fb071d9c3071244f96249560b09343059cc. 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/QZSYP2223980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a55bb8996861e108eeb4e94906fe8f7af5f9fe6c4dae9b3470976d7ad95207. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZQAY2291531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf9019f267a0b87fa8f265fa41b94b7c8086817cd40cf28f67f026c6cbc9d36. 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/QZQAY2141660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf19ba21886785c7629c3434f8bf190f4755d6d3b14be26dc5c7ff1c2ed1a0fb. 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/QMGR32004863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd36abd332d15c93fa49ead34c1f7e1129fd868b7f9b8363013fe89c0478430a. 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/USLD91755427.