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 0xf78474b3bc8e3ed180b8cca528956751c695b40257e8dd3182bd099461981316. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5c9f5fe-8f6e-4544-a51b-88ce94d6750b.json and https://artists.proofprofile.net/proofs/artist/c5c9f5fe-8f6e-4544-a51b-88ce94d6750b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deepness | Melodic & Progressive House (DJ Mix)
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 0x90148d67bf66923b8bb3b277833f1f0c5cc1377c18986a430f1ccaba7eacb2e1. 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/US83Z2223462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4314831a7f8536c8ce7401017d70db438675ecaf65fef8a548e55d9cc7ac3255. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/ITFGO2200061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b93ebdb1f745d4300837dd1b4581a5b75bd37f0d8f82a0f986aba0feca112e9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ITFGO2200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bb1ff92b532d75530d00b411e73f70734a31f919cc3f3adb040a377b5c74b10. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/DEY472376949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad6a325d813975653dd5d84982ec9e2bc6e811452124da2547b776c56c97b739. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/ITZN62300084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d930ef5167d9d6bf97afc47a2882f29acb781c2d76e65e52c1cb365296620c9. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/UKU932112075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780da8e094943d6ec2416404fe10d146bf0dfe7d435836cbcb6bafc400b66f49. 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/US83Z2109518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b4acf342b5ada83326374e83e3431f2cd730b152498220e6d7b34737b83c18. 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/US83Z2109517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033f5d43852ec90f31b3b3332c4f071aab320588c2607f4ff5a1c8540f3e8391. 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/US83Z2037812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82abdd6f76be382be1360e6d9439f0c393282a9b45e253d6b174ffc667e9b6a1. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/US83Z2019887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda3348d1390d8128c97085285b781b9f8a6821d8da362341a530f6d137404e91. 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/US83Z2513645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4793431d79ffd2ce1e7b92db265724f8ca97baf39e8b6a6f42817d60557c1f8d. 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/US83Z2513656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc21e461e627a29bec556c6a079735ef12bbbbb5bc230a426b9e2893c8a04a88. 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/US83Z2513660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ce67f875466be743e478802c81ebc29990fea5aee6ac85dbe7c4e01c4b0933. 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/US83Z2513646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443b3b1d9a7b7710a32ce68611e00748f7324c5a98ec6ff50af865397c311142. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US83Z2513647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef1e8e415b6c2e54bdb03912be1fbfdfcce02da22a2e63fb758505c50534b44. 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/US83Z2513649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7c73673023d2bcefe398e584825722372479fc2ece704e4381b3749d199893. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/US83Z2513648.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81abd7ec43746eac1b04852ce0836195f9e456ded3eca1a00373eef18857bc4e. 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/US83Z2513650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb454b1c11c5e861a3185b1bab675171c19217bf40c826936e97a2669e2cb689b. 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/US83Z2513651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7dec612a510c79b5de5223166dd2eb29f31976f2eff1036842fd7114b6be7eb. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/US83Z2513652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe215f266a46cb68726e22cda46ae29175936138aa77990cef5e8bde9d14ecc75. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/US83Z2513653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ab234bd803d1d7fce757d67984ed5b2a4a3cf2c5bff164871a17bfd80e4dfb. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/US83Z2513665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe40f8ec953279eb869eacd45ede79d86760beb90fdee6b780317d23f3009e8c8. 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/US83Z2513661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa985e44255e27991872622c9d9297eec7c48220a156b4eddab3ac67f2b4007. 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/US83Z2513655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b85314529903e23ca2a56ac69f75e3c6af66caa8ffeeb8dad6355c58a6e303. 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/US83Z2513657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a39d8101065386ce62bd49f1375cf4c3e35bb7a4d564752b740fb0e7d1d330. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/US83Z2513658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075068c1bb5601f9d887caa6935e2acc0444bbc1318510ab79c6aa7468a39cc4. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US83Z2513659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0334a42ad1eacbc0ad58597f370613444fae91227e1bbce0a1ff1ccfea888e10. 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/DEBZ40800055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8378fb0a61802f190a0719840f7a326cfda805c68b5b4f7cb6fbdb59e3acc7. 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/DEBZ40800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2025f8f26cd00e3de935c1a334145eb11cf934b459ae98911bff31b6c5a4311. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEBZ40800057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3edb8bc9738cfcecf108ad9c9bbb8d8bf62639740a1778f26c34ed31779af06. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEBZ40800058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d685c493bc4ebbab144a66c5bcf23514ec8760e3543742d32b0524db8451a0. 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/DEBZ40800059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbaa0a00bf10868625fe0392cf74d3cb0b9e480ea83f8f5e9d26d7d7d924a4b. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/DEBZ40800060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf148faabb827ba4da6c8d9b68281d7b4e05aaca88c8423b8943a4d3869813b43. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DEBZ40800061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c1783eed8a4e377f9ba5d8b387e1d0ef1214cfd74e3ad7f8b6ae55a0ff61c1. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/DEBZ40800062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7625554e5b1e1a61a9c83bce3e4d368f5a34468170e55c4e753a32cc2589ce8e. 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/DEBZ40800063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ba7a53dbb9299c094f28c53a2f61f70bb4b529afe8e22a54a2af59929c11ac. Chain 2 (Bitcoin): anchored in block 957011 (2026-07-07T08:25:35Z), 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/DEBZ40800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375fefae2afcaa8ca2b80413a5582bed5770bce882a393e9067b05ee6c339ee8. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEBZ40800065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035defc588767c4016146b28a49139e1610c7d9320fe871fc4799772ba90e12a. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DEBZ40800066.
This Is Beatfreak by D-Formation (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe284ca94090104318f055977c87f0efdfe5644a864214fb41d224fbc42e7d36b. 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/UKU932111944.
Mixtape, Vol. 1: Det var bara en illusion