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 0x86d4a977f43ef83457ef9bcc9d80265bb1b09c1c7960c92ff7fa32017ce57377. 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/9c38fe3f-9b86-4602-8269-c8ea0f0afad2.json and https://artists.proofprofile.net/proofs/artist/9c38fe3f-9b86-4602-8269-c8ea0f0afad2.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 0xba56b1012d4ff21d9142b6876a09738113df191278303dd6b2d8174ca3795cd4. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T12:33:53Z), 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/AUCN32100079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda0672ff036d660007ee23fbefe0052218f65e62c29d7a6fa7867ad00a3493c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/AUCN32100167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cd810298f18a0457d35ff924f9837875c8584b7f55e0804afce87482dc6d03. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/AUCN32100278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a91c4e143a81f3ea027b7ba392c3af535f83095937045fcd2cdd704732e5f20. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZRP42139193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb0ecb470a4c9a0e4c1ee11b3f6bf470ad74bf10f6d35934454a916403f5d7b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/QZTAX2260249.
English Lad (Midnight Dance Party Remix)
English Lad - Midnight Dance Party Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa277ee192b2c4cf20b792eb021fc50e7c9eb798b81001e5979fe69e5d3aa239a. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/USA2P2347823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa277ee192b2c4cf20b792eb021fc50e7c9eb798b81001e5979fe69e5d3aa239a. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/USA2P2347823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e369e8877240c5c280b477f7e91707f54baefa88a088ce0cba39cc7d25348a. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USA2P2423052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468833f9ff1b2eadc3d9b4788437bce603b7b428cd1c0b518e6b5d568979ee43. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/NL8RL2527955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x715d47ff60bda9cd7a0b66ba85add50af6de9217f1d25c37b18c32cea9615592. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/NL8RL2531698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031b5bbae9ab0f3ac880c0be5622b48d0af946965bfe0d0d0ed60134ef38ae1f. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/NL8RL2534988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1d789df08dee4b8b8d89f9b17a0004bdf994dbc71708851c207543fb6b5af7. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/NL8RL2534989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e46a4b47ae4968605db15d9ea50ceee4b7ba3ad44b59679b604eebdd4f47b04. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/NL8RL2534990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3433e531aa756281432fa8939afe28a40edf464615fc6f5f46b576f027c0cd29. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/NL8RL2527954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5e961040d6661db124d97d4eaed33aac0ec0f21c11ba4607f42ab610904ddbc. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/NL8RL2531706.