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 0x6b0ca7f1f292b6f18bd138adec01ba225a96eef01c60acb23df9dd3265c4b712. 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/4ebea1f5-af47-4440-8cfa-44b9f4f6d5ab.json and https://artists.proofprofile.net/proofs/artist/4ebea1f5-af47-4440-8cfa-44b9f4f6d5ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
They Ain't Fucking with us (feat. Mozzy & Big Tone)
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 0x35da712654e25ff90aaebb450147f5525f077f4b842b999a155d80dc93650691. 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/USUYG1349666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff364c316af2346b3b2ea5ff7a2b364a6cff3baa89e6585c259342f6f1099912. 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/USBAE3367433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb364b3dd335f97c922ef1d46c1d3586ef1c4e1fea9a1b4e824fb5695533e6a35. 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/TCACH1575010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d0cdbcaddd02d4c8342f2bf4bd16b5627a5d621f625dd5820f9bc98c427c3be. 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/TCACH1575018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf9e57976ce42a0b015e552d2575a3c92617f03149f20574a96140da8d95d53. 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/TCACH1575028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c595436a9ca5ed1a58b1a174c95a7059f4d01353117bac80ff2a7d0d1463e8f. 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/TCACH1575033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174b2b610ed184df9d84d6ca5efd4cfb372eccd085ba21a026fbaa261faede3e. 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/TCACH1575037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2149a0a0725ebc3dc704efac30f345761c37d5b60c4ca09fe7bd8b032951ccdf. 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/USUYG1026192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67b4ac77165566e4038f46a836e3a72100b015a745fb92d465292a4e6e5ff3f. 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/USBAE1202139.
Slappin' In The Trunk Presents: Syrup and Kush
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded9aa3d834bc0465e1737b46e51020bc043bfa25de6d6c0a093f234931892ab. 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/USBAE1100704.
Rich Girl Remix (feat. The Cataracs & Young and Restless)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799edea72bb0674e15367c6e6641078380b512456ab64c5e6ee52459fc596f6e. 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/USBAE1100718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13fa3ae2e450b6d4b2679f6146bb2b1254cf93ced615b815163f4e1aa8fc3fb1. 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/USBAE1000451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43019898771226c0387928f2f032b52f1b3af5fa509f653cc6343d0101c33dbf. 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/USBAE0901374.
Neva Leave the House With Out My Hammer (feat. HD)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0d13560194d6db00d0d92ad160ab1bccd5d37458277c616b31f0ed8564d923. 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/USBAE0901388.
Best of me (feat. Yung Skreww & Blakkboi Hoodstar)
Hydrolic West Presents: Feels So Good (feat. Smiggz)