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 0x2ce0ee08ce2d5adebac7537ced0c87f8240391c6e1b54a7dc484c5494c47f29f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/618c18d6-f830-44cd-831c-734d4e5d590a.json and https://artists.proofprofile.net/proofs/artist/618c18d6-f830-44cd-831c-734d4e5d590a.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 0x0c111fdc0277ef1957040b551482791048f0bb1f46767cb57dcd9759cc3af1e4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FR10S1701649.
Papy (Rompelo Mami) [feat. Kamaleon] - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe598b2dc4ff5e4352f83604b23556b733146e2979ff347e8556fd5f3f251db61. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/SNA1A2000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12ee2fda9b96d9ce79bdba7f4a58f53b9179b460b7d5817f734a471d95670791. 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/FR9W12200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27a680772d5f9fd3e826ddb8b72d4b6dcba92d6a102599f411a374d917367b0. Chain 2 (Bitcoin): anchored in block 958752 (2026-07-19T18:50:09Z), 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/FR8GV2276950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d277a86cc06516f532726cf07d8e4316c10483bb7f9e8cc18ed0079ce5dbac. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/FR8GV2277010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701bc2217ff091d29693006cc6097d55c4ca91eb88f924875a15ae1cdff54caf. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/FR8GV2277020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ea0d73e2e9b7cd7330a3e086edec3a7c171a25ab628e0615d08758f7f9807b8. 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/FR8GV2319060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011c79b84c98e89a15a630e495b39444c6fd9f7ee80e12b5fa6c0912ef5217c8. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR8GV2319070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67931ed161ae02bf1a93335774d91b860694a1a877e182e62384b221821461e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:16:07Z), 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/FR8GV2340690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3ee85686a65072d9210a175e542871661add6570c928db2a5a3c7037587497. 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/FR8GV2401710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011dec4a942d460a08934b337b9bf9c80543b68fac2f109684b4902d6e07a2b7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR8GV2402610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a219803db503114d1c432640d30cb2ff06ff542fab497515c3770f6a24be31. 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/FR8GV2434760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd935f57ddd8870e113cdbcec83fc8e8072fa631c174ef6dd8e2829964a4bbc45. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR8GV2517320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd217bcb3f2201907bc68b6ce956d6bfada9522fa9625d87cb7ccae5d630f5d5f. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/FR8GV2525630.