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 0xf96227d68ced586f31cfc830a631d9e6d98b425fd735c9714541199bfe46f372. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/199111d9-6983-47b5-b99f-40e166033e05.json and https://artists.proofprofile.net/proofs/artist/199111d9-6983-47b5-b99f-40e166033e05.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 0xc4718d02f85c329460ca3b95b5be40310914c70355ef41759e2b88bd39ab6901. 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/DEGL62300126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75241ec9bb8bb75aeb78bf23279fd12e1da781b3eaf914a2e45b7ca940796c2. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/DEGL62300128.
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 0x5e8ef8f0557cdb9272f6f4b9cdabc2c81a7eac2a08dca8bdcc04e55a035081ba. 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/UKN6K2100159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c525e89a731bad2611b5f8efa32fc428a1392e04210bad414ca4700d00dfbb6. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/UKN6K2100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8a8831061c83bb2cb650b3b9249db74d9764be532cd616d1846be87784f167. 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/DEH742431450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x759d2d2ebaf914c371babfd23fe1a13f3cf7ffb7f6f71c2529a3f7832609d0c7. 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/DEH742431451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfccd6d3dce7eb2ee5a5b3fa748aef8b1b6adc8dd331f8b98d19f9eea79e784d1. 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/DEG932400763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b65cece69a0541311cd657b0faa376898495a1e829fe43c4ece454f0376360. 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/CA5KR2389022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6e4fc3e4d84a2871fcdb27e3e5c448849472d574eef19f047fa4d082a54b65. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GBKQU2363276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc88a0dce31df423c84a4401d0b66b6cb26180c7221d6efca010b607533bb21. 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/DEP082200097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412a188237661284c08df8ff6462f1cdc5c7c2e67f1f4890e649faa77dc81aa6. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU2241849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a243e18ccf9c99806e91b8e1922b2e6365753b5d74e5439018816abf69397db. 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/GBKQU2241850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8bb4fbdafcabc62e87897accd2219acb02a2be0e4f9594f4be23f397f733eb1. 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/UKN6K2100161.
Floating Penthouse (Kresy Uplifting Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be4853654d10334804b389c910ef8d5fb35a9a40760de252d99157d184efd65. 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/DEY472085310.
Summer Rain - Scott Diaz Grand Plans Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01468b7b21bd9f2b99c8c26694698fb6775e1db6778de576c1453eac8e17e44. 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/DEY472085311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c16ed55a65b9400b63d562d672c6ce3b947535b9c4623adadd020d03f565ea6. 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/DEY472085309.
Flowers at My Balcony (Kevin McKay Re-Edits)
Flowers At My Balcony - Kevin McKay Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fbdac3a63a569bac04827c890a03ae11736597763337506c7d90c21123899f7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBPQS2000143.
Flowers At My Balcony - Kevin McKay Extended Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ff61c21c85a8b4a772f6b5063522e1cbf7be6abb5abd4fcf0cf49155a93d85. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBPQS2000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd222142a3f56b9fd18a8eee840d982174de9684cb612a38d5d6385e5c1f7ef3f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEH741918620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a60b403f61f05cfac7520c9a4cd56ffb26801d190bfae5c1118c7d7be64f362. 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/DEH741918621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff9c55f08d98d90c5c2194e2f3f69699bc9cfe96e20fa8abaa648876d311fda. 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/DEH741918619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe427c28022d2a4e2d795f1d1c8c94b006fcdaf288815d9931f33e4ec87579244. 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/DEP081800025.
Shir Khan Presents Black Jukebox Disco Jam 02
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d16d9584bfd0be8a7d50832fcd501b2b542349a8c969b7879f650962ed1e956. 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/DEGL61900149.
Yes, Was - Paul Rudder & Hurlee Piano Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f636b2d524d587ddfac0bcb903ab7096554281f8cafe5821c8481903cef5b95. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBKQU1791361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9fa0c22a446f612e6622dd032ecdb514cab0273f213116708591094f292e9d6. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/GBLV61926973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bef70ba4fe7b7d4854bd2e3dfa82348c144c0b067395a6f3ce87f0b90b8db3a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEP081900031.