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 0xa61265565ade61b59595ab3fdb81313fde69d582b002fab477fb9af54690203d. 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/c9d43827-fe57-48ec-9dd4-52d002a92719.json and https://artists.proofprofile.net/proofs/artist/c9d43827-fe57-48ec-9dd4-52d002a92719.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 0x00081d23a39f9c49d3f9a3a7ab5ee08e37120342ca7f2e40cdbf8b6d1ec127eb. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/USQY51292285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc91e9ab7075c13b0dff423c919d66f18849cfe6f7a22ee3e43a25a07c7f85b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USQY51292286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414398546c3d29bc2a7f2416a335073d41278563b28b6c4759ca2afa88183cd4. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:32:27Z), 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/USQY51292287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45e856c6a0f0554f0c8a345dc2f7dbae45dc24d28bacf6f65143a5caba83ab2. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USQY51292288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab063ff9ff7c25ad639fce7fae2c8a2a10e0a018191a27ebd21ec2f12f1bbc7. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:22:41Z), 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/USQY51292291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb6cc6c93fe968cb759c6250032bb0e47e83a41565a50a45be8efbcc44b56a2. 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/USQY51292292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054033a2e5c53453da12c3d00bff0188d9a027967746da7329fcb63445747185. 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/USQY51292293.
Beyond the Beyond (Kareem Raîhani Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdf1cfc94c8689893dc5bc3cf93cf7858f5e7a7833e29377fe1d01cc7fc38f9. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USCGH2346363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f09e9d4047230372bfeeec9827fb9d321cd8c323e9c24c335bab11f94a0df2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:10:19Z), 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/USHM92423024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00dd641b6fce549bc00dfc15f1410bb81df769e4e2cb0bd96259eca04d148279. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:59:29Z), 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/USY242431704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23eaf4836b3954931fe754765d47bb1f7fb2774c090fa0e78a2192d98037e01a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USHM91477963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cdeb7bf5d0402c50f5ce511473462a3ab5d81886ac84403e6192a4e6102a0f0. 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/USHM91477964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1e31335caeef43008b0900434ab46222aa5adcdb6af790d75fec6433c566fa9. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLEH52100004.