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 0xdd178bbf4ae63d0dfee0ed931b48d4b8f322f576913464b7071800d9dcee078e. 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/27be6cbc-ada3-465d-9279-a531fd0939d9.json and https://artists.proofprofile.net/proofs/artist/27be6cbc-ada3-465d-9279-a531fd0939d9.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 0x1bc6265d867826ad8f85b6a7ca9b46bdd5c8eb0a05d03d41dd5ddcb8b05ae1fe. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/KRA490100085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12d5dec34523054c218a719cafc93000929d5c2d4b4b20518c3b81562f6cf0d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA490100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfd5f57a9e2fc837a5a1f8238e91168c70f2cc1bccac91999e86326f2a784f8d. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/KRA490100091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8dfce0e147af9e2202c6149451db2f604aea486d31bd0330843b8c23b253c0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA490100092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e88b49e9dd0775882766b428cee2eb4cf6c282236c9804b608d8105be627d1. 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/KRA490100094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e58da0af99719e1be64d253650d3816a30add97de401c79587d8a10399146e. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T07:36:28Z), 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/KRA490100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a290ca225070e3dd66d8e035d3a504be9592ff90ed3b85bc57e39543e17e02e. 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/KRA490200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03fe10fb0850393724d9406cc540419b95dc88192644c0e1c5f376af485d4d9. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/KRA490200116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c3491334bf691ade95ebe8574a5c75129731074c836eb46885602eec8db718. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/KRA490200122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4454d732b67c144682d4c0823a7616683d79153663ffbd14e53627b4cb13540. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/KRA490200123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e63aeb91fb3e55eacfc9f2bfdb8ff39635a708095b30960af6f6a39635d33e4. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/SE5752295314.
Violence of Summer (Love's Taking Over) - The Power Mix; 1999 Remaster
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68d2e0951659d2bf0d2278d71694e4298ac6121d320c55babd7e4eabb0bea11. 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/GBAYE9802251.
Violence of Summer (Love's Taking Over) - The Story Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b93bc6daa072b6e783c5f75e5da34c10fc39c5da3599bfbec5264c0062ec11. 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/GBAYE9000523.
Violence of Summer (Love's Taking Over) - Power Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x523879d25151934297c8b952b0dfadea6205bb68c22786234c81578db84ed114. 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/GBAYE9000610.
Violence of Summer (Love's Taking Over) - The Rock Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c972acc1cbb837517ff7ad08b4054ccc2a1b18d07752e6977a455025c290ced. 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/GBAYE9000522.
Violence of Summer (Love's Taking Over) - The Dub Sounds of a Powerful Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da4b261ea205ef42b0080fc677f0c649c4231e15747d88092bd4f97c5cb7df6. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBAYE9000612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c121079751fb9b80a7a9ebee1c6b661552e69ad26a2322db2f0df2b52ddc15. 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/GBAYE9000521.