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 0x9563fa01990d057fe1c8e1a69916e56afe977aa3c48b9b44909e54b71f42c28b. 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/2a816892-7f82-4f7f-94e0-2d4fe4041bd1.json and https://artists.proofprofile.net/proofs/artist/2a816892-7f82-4f7f-94e0-2d4fe4041bd1.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 0x2d8d287ee53b6bf613f6655208e77fe549d9a1d7f7d76edfd758249d0243a9df. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLRD52083295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c14ea7b125993138d4bb552ec684f8a63240d6e99168fb5646f3e3dd6d4b4bc. 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/NLRD52083298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025e410506dd13797fa5fe094ceb5118223f92082d9006f7bc222e5b725d5028. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLRD52083297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8d287ee53b6bf613f6655208e77fe549d9a1d7f7d76edfd758249d0243a9df. 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/NLRD52083295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025e410506dd13797fa5fe094ceb5118223f92082d9006f7bc222e5b725d5028. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLRD52083297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a33a4d1dd5465844b19e9cf476233fc75c504a9ec77db91f6e081528c5d225. 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/NLRD52269281.
Sunset To Sunrise 2023 - Mixed by SMR LVE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc89e8e9576eca8a029445ee1f74ac525ca99541d46b9a49034547f41576ba5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/NLD682400408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50439e2cd043598bf79ca853f53106b3dfd30b438a7d16aa30031321ec530877. Chain 2 (Bitcoin): anchored in block 957801 (2026-07-13T04:17:08Z), 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/GBKQU2439973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50439e2cd043598bf79ca853f53106b3dfd30b438a7d16aa30031321ec530877. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/GBKQU2439973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a93dd23622fd1dde38b10c3c2a92681eb88fd2f401488a6578be83e46a9c528. 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/GBKQU2450938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7053330ed2ef8a97b1d2276c102f7c70bb4be772139fa267ff42f8e71ca9f110. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:08:19Z), 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/GBKQU2413482.
FYH400PART1 - Find Your Harmony Radio Episode #400PART1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ef49d14776128ee80c7ee390a8cd4c474c5a11bcdbda001c0a5ea3256b321b. 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/GBKQU2442001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9853e66ee2d664004ba41fc445cf78108b98dba60c4e3dba2ba562dc9acb84e1. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBKQU2402397.
Unbreakable (VONYC Sessions 800) - SMR LVE Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630c6e4d86ee15df2157e946f70956a93f8a25cd8e7a498bbe0b6cd78424de9d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEQ692200373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd16671d87df99f02bad1b48b859558c38294d63ff065fdfc8da64b5fd434f02. 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/GBKQU2402402.
A State of Trance, Ibiza 2023 (Mixed by Armin van Buuren)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c0d46cab448ed10234814df7ea6651b7d0c588b21045d10e8c2c2e2d004179. 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/NLF712306498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792d3c606a7077438830d0ff6d3da4a4b415d593895f0039ee4da646a6f05856. 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/NLD682401285.