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 0xa91c82d7df217006ba70ca2bfe3e2b078d8d2620f05605131273b2d11bf9fd3a. 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/d3b87789-3941-4842-85b4-e1b2ce480592.json and https://artists.proofprofile.net/proofs/artist/d3b87789-3941-4842-85b4-e1b2ce480592.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 0xae9cb1a9453a326d58fdc6e799cbd29f0fbcb4f70f66d59068e77b553a618cd3. Chain 2 (Bitcoin): anchored in block 960435 (2026-07-31T16:33:26Z), 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/QZK6L2376155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b2109f7c71611013b797a854f8601a0ade0bc41ce6330dcfd497d5159362b9. 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/USCGH1906977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8eb2aede76e8a5480e00943218c218f97750ffb89e9c01fc00f66c33bb79c0. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/GB7GV2311220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x268d9279dad9edf7ffe186d072127b00893c872b9ee5837653d88af77cc0095b. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/GB7GV2311221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde806aeb3d171308a85017626e28ad6592ef5b68ea66d06ba7568ffd38bed55. 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/QZTB92371531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bd3573706a715c761139cc67dba0165e73e7b774dbc2cf2dff0060d5062674. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GB7GV2311210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d4c78877f3916b8c5abca590f813bb42bd3e7e61cf48e780e0d1c5d3791a2cf. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/GB7GV2311211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865e5c909edcb73cfb9fe9d12cad99713d489e227095ba8ea1fa895473348cf8. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/GB7GV2311212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf05834888e3c8c493f4af6563a0d890eef734bade405cddb361fc24348742e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GB7GV2311110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb564cc96d229bf9ba4b4c074525a2cf9dc07cb7f3987e96bde3cc04c80adf8a6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB7GV2311111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f42fced2eddcab4911a808431f574b65f63e92334feac0b8eeba154fc3d4d4e. 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/GBKQU2130388.
Purple Funk (feat. Saeeda Wright & Chubb Rock)
Reflections of a Disco Ball (Joey Negro Radio Mix)
Reflections of a Disco Ball - Joey Negro Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945a60f72899676852ee368b4b87b4d90490e281c52955aa3dd6103fe77a5518. 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/GBPKF2000062.
Reflections of a Disco Ball (Joey Negro Remixes)
Reflections of a Disco Ball - Joey Negro Club Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35488804316c09bed14093dd625a11a6898d2616e5255f218a6ca886be30781f. 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/GBPKF2000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0a53d23ec6e9ee50d0f15c880732831adb75fbab7335511a7326cb3c615293f. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USHM21892359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cbe074211437a7d5c52558314fd219396a023c102b26b31b2caa305f893538. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/QZHN52239997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0731d47480592d2242eceed2e5f0063e982ee64e8a76b51dbad2198b1459e65. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM4TW1631124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576fb2ab42b6443ef94d1eeb24b40e2218c4dafca67bf8a563bdaa6611f545d4. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZNWR2259374.