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 0x4ebf477571704f6003fbe99d7208680fe457d807a3afc1aee453be97583233c3. 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/7e8f72b8-6466-452e-a63e-081d6ea99212.json and https://artists.proofprofile.net/proofs/artist/7e8f72b8-6466-452e-a63e-081d6ea99212.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 0xc0c023d69f71093f8b0c028f6223005a482c9a7a1c2f80e3b5f15d7e4b48e3e0. 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/CACWV1843041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f06eedb2720add528fc765417585fdc723c934243ff9c1dbd25007e8a60cc35. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/CACWV1843042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7486450d30b99aacbe9f0204a9d5ef15a27f10422cbc6cbd50d44e7ff0c9dc15. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:51:10Z), 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/CACWV1843046.
Y'a un Putain d'Cactus dans mon Ballon !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86098b8b18e6f5c73564c6b5fd2c307fcb9f05aa4fd450698c3ea8b1cc6a5d8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/CACWV1844442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c35540e283b0285c90d9c3679658173958b997bcaee53f9ad4cc525295adc4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFP51908982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefaaeb1ad02bdb80be58935e109faa8500485967088b819989f97ef433e74fe6. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZHPJ1938276.
After Sa Mère (Lilith & Adam Resurection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62518c16c77df056181cc92d4580e0f392c9e5520ed274d51a8b9c0c130e0b1. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/QZHPJ1938280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5c6105aeaf8347dd6d9f84c0f0916a8e1edc9da841483cdf52334e06ec9838f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZJRB1905833.
Claque qu'un coup, tu vas niquer la batterie
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df62590b282c3567f31fbf24cf9c74c75e7483892690f3d3ab19622ca3fb216. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/CAENV2069603.
Imagine Ibiza, mais dans une cave à Sarcelles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f1817d994cca9912ec30bb5b1e59afd454bb1052a7cc6ab84fe6c769bdab3b0. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:42:49Z), 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/CACWV2248613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1966a3ffc55d193360db452409038d31289f28711936fb05530beeb83743fea1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CAENV2281418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0596326a9168427be83470f3c3939bba88aa5e228abbb326d828242b95ce67f0. 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/CAENV2281420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf84fb1c581bfbff09eee11246e73f9180c801a72cd9894ba196aa13b806b405d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CAENV2281423.
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 0xf1f5177e6edea8d95dd814f2050283fa1b32083828984985abae1c984867a728. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/CAENV2281419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad8a2edbc233d1eed1e113bef428b9ab68218e392bb4f5e99a3b8509d9b11ac. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/CAENV2281422.