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 0x8fe86e3919704e5e3f07590bb268f36ec7602d1afd03d24f3c44d2bac1227dee. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44bfc236-5d8d-46fd-8a24-b15527e70636.json and https://artists.proofprofile.net/proofs/artist/44bfc236-5d8d-46fd-8a24-b15527e70636.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 0x449f9efc75c2eff7bdc092f3a33e009995b6cb831df4584b2039a79ebc0b94c1. 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/GBKQU2360556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947194ebcb4e5f9a9c87610ea7d9b31bbcb05840db87e580002c86080986f065. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2360557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72682401e92ee0400a3f4d68d267685fbaecf417b6e4a7805ed2a6bafc3da2b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU2360558.
I Met the Devil (Stazma The Junglechrist Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d395ded8a42f017b03e30d825be899b651b9c195406c93ca7dffb98b168ae8e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU1364341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7b6e95a1785ba05d08da469871414359c64740b7c73b2c08d5b697249d96a4. 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/GBKQU1364342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39915f7817a4d74c6fd10f6cab0c7f57e387fb13cee984bbcc9e8bd96e0fd810. 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/GBKQU1364343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aa33213f126a34887020aae8848fc9d751390d92927ee911f6e8113ecdca8c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBKQU1364344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43d3bb14f88bab3f2e34b7addc8cd0484b292be25eabfa8b1a03a7d8913cd8c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/NLCK41043946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc679257c05a9631a5717b458d00a587069bf5a9d3ac72e9feda4c0e904f8bbb1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLCK41043947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70925d8a8755eae67154bc20d9dd2f0d9cae5ca97297dfe56e0f80c758f895bc. 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/NLCK41043949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72cab3608ee1a1a70ad68934673fd6ccd568933196fc753835c22fd4b3dae0e. 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/NLCK41043955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9730917a22fbe32e08e34abc8b1f837ca3eecceedf96b404a17d329ee35433e. 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/FR9W12209278.
I Met the Devil - Stazma The Junglechrist Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6996cac13a55327f974d767be28a71d2e1061a46aa3eb99f031634c5e9db24. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR9W12209280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530d7fb9ba0c1a6ee9e11ed38b72d491dd7174c2f11e66cf8c7c057bded3cfa6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9W12209281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe826d664b77d2858bc84c08f1b50a55fa106ad65fe0c3a2db9d7989b184637cb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAE562126402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a2f2306f3e506734062bcdb74c254121fb4e1e52843c4238c26d80030dd2fd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAE562126403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd3b6b35604287503aba659570ddd7a4178ad868ded5a20be842e74eb9dd9f0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CAE562126404.
Hypothèse destruction - Oliver Sheitan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61315e39aded2c9129f54674c3db3c258a44ed8904433091be7ed2ce51d1de05. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CAE562126410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc290357f2b5b54224340c0d7a4557ae3229da4a6d23d6b54edd78d1e5c862c00. 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/NLCK41044815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x214a01d5e4f34a7113fe3a64074877c191bf299d37edf2bb3f9cd77b38c24ff3. 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/NLCK41044725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdf85c5a7abb81ae39727552f701a368441c6d530ba510f005acca11cd63cae4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41044726.
Internet Exploder - Passenger of Shit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a271d265773c3c99f157de59f69f011ba4114f8fcd6ec1a8355dc2f94b59044. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLCK41044730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4dc8b6cdf06fe3038b84bd16fdfc92dacbb3aaa6c80d2809ef26e9d82f09ba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZ5FN1810560.
Reverse Engineering - Velos & NLIC Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7f543aeb4c46f5f30dfc5c3f34ecc02f830ad77be3a20341508cfa1817c427. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ5FN1810569.