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 0xb001a2c220c10f1d3f559300195168ea426f47c62ff6c458f00e4c94188f004e. 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/d9d57360-a490-4522-a259-e6db11ac3adb.json and https://artists.proofprofile.net/proofs/artist/d9d57360-a490-4522-a259-e6db11ac3adb.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 0x26a8e452f41e474866ea372fb7a19540dd153d2a21eee13e57a34c450933efc6. 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/USDY41646866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3564dc3926b86717abafa5287966a3c8fe000957f0e63a57f8277f1b7642d342. 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/USHM81636126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x952604f8173cf34d45058ffa601e5e3b175ba9b890b534c133bfb37ac19912e6. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T19:50:27Z), 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/USHM91706765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf07ad50ad406f1ed943e6d741b29fd15d5ae68a16c2b74bd7e80beccbbaa0a. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/SGB242100628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679536421a5df93892f0c406ece43f80c1c8369d44449f0b61457dd38424abfe. 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/SGB242300963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586bec7c63daa5a332ca9f633c1c4793b57f5b8256fdad22deaed5e6cf8a1132. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:05:34Z), 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/SGB242401454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a42b47f1c08256c3243b74036b0c25d6e7a94843ae3daee2220bedbdce5e2a. 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/SGB242401455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa97ba31b81df3b752ba4df0a50bdef14d1e8521d2a7e14d0554ef613ac15a7f6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SGB242401456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd2e91abbb3b876d5a217c243127f84a541b0c8aa77e326addb2078d26a010b. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SGB242401457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4784d4002d95a6ee2f197920fccad79c7ab6faf8c0c0c51dbc25b59af6eb4f9e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/SGB242401458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0b284ac7be3c364c1be49443a9d5dd59ab10a566b44ececc8c0db2a80fd91d. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SGB242401459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ffe72a13a4e39534ee41e496555e9576f9399d0da74268e3bac98cf3f45211. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/SGB242401460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba27ac3138471832fe1b65cb47472f45dbcb41bbb75c0250e4684d259e661099. 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/FRX871538898.
Go Do That (feat. Akeem Jahat & Joe Flizzow)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83c5d5d003aabe267589f6117ca7ab90696dcf3abc349c139ffafb58ce0fca4. 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/MYKL11600032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef91f2040d6d2076ad98071e0f0a663ab31fed349da534b09499b1212adbd47f. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:41:35Z), 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/SE6TI2357958.
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