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 0x5c072669e637f5717037938e05fc8cc71c56661347bb6bedc0458a18c86e6147. 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/cc43106f-4aa2-4882-b8d7-96a20e5ca583.json and https://artists.proofprofile.net/proofs/artist/cc43106f-4aa2-4882-b8d7-96a20e5ca583.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 0xcbd767e2bc705339173a396bc0dc3621301303110b5d47753725e126f444ad0a. 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/NLRD51968511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14667cd449a06d594b3a0b70d259156c63b3df8d81e573a2143974f398580646. 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/NLRD51968492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a531ca901de76fc17aac40807241b450ec01a48bd36c7520402b3a276341b4. 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/NLRD51968382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd063e9c4cf62e5a9f14fb740b7a7f11d2d9e1a1828bb91221d5790f9d3d10adb. 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/QZQ4X2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee0dc522e1023203bba3514f4442dd146c7f4445102cff056fca1f6af2857af. 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/GXD7G2318367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7acb0a399011368288b4341ec7b04e5bee5535bed4a7ff00cfe71b1d0a7a40. 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/QM4TW2381963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09fadd6adbe525243713d57d4ccb31c13fc9b1473cbd353657749b6e0c406e8. 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/QMDA72226247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe586d56addcb7a599cac131893e1796280ce55bf02102afd9ad963192a9e0631. 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/QM6N22228704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e13b902e93e1b2cfb81339ac962215da14fbe3fedafad25af3b36e6da3ff9e. 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/QM4TW2216588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61326fa1edfbdf16601c97562cebd5ef79d5a89df3f32fbb3c441cff2fc058f2. 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/QMDA62131925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6618dd44ea61a47e71543ed7030103be681da1e046eaf0c02aaf2e28c2dfd296. 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/QM6P42133418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fe7baa66aa39bcd02a2878590dc1240580fb72f2ea9df5053e43fe1a1c8382. 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/QM4TW2160142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2574041059565a680b64c73f42d33477436a2b304d547e0b52c1fcd4a573de1b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QMBZ92035547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b9be95a92422a74884a2a9c7299924a6921e3bc466fbd35992e0d6fd518f6a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QM6P42055248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe135e46f46a6695e7deb46dae85a0cf231a5a038dcf434e141a77698016a4bb8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2100793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b92840fc2d67b26afbb8c604044f41e64146cd86eeaa5799420913a5d0957fb. 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/ZA56E2100794.
Mofoti 2.0 (feat. Naira Marley & Sarkodie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c98318030f7b131380ad81d2e66f6a763e562f552e097aae17b744cb7fef3fa. 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/ZA56E2100795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180d292096913e6b9d7f6534aca33530474d044e938c7d5cb38253e7ce6ab081. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2100796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7813e96c2267c6ec4f6e68a19aba0e2dfaa3b006d2ab8fc6b0e3d68f63a6b747. 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/ZA56E2100797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea79f63b4cd8f5f663dc09afd77647f490666d355f67594dd10d6f55fe8dff14. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZA56E2003317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9a28176a9d27ab805d878bd633b2c987dbd4b4a56bf876e3631443cd4bbbd9. 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/ZA56E2100459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe70e9b7a852e73768b41b550a89d58cc196d691f4cd4fe40f94d0763bc1491f8. 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/ZA56E2100798.
Booty Bounce (feat. Badboy Timz & Ms Banks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa67a8f2c188e1539a20c8131f9f696c93e3ad67ef200efe99407547438379962. 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/ZA56E2100799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55df79ab6b232c92109a5e7fe00871ea984cf72e0bc52ed327b89947198725a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/ZA56E2100802.
Ginger Me (feat. Midas The Jagaban & Zinoleesky)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5387d5581db8f968d07427fe76e24ece457c379d07e2b242239af752a25b971. 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/ZA56E2100803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da3a64f43e4d23e40d499565f63887371264cc68d63352a040ba8dc528c59f2. 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/ZA56E2100804.
KPK (Remix) [feat. Sho Madjozi & MohBad]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda4ad8d1a78648eb1adc9b7661fd78baf9875b85686406837135bb6a1e95282. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA56E2100805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4fb3239fea85d091dffc2c22ff3426544e3fd78c71285e2aa70ffcab929231. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T18:56:36Z), 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/ZA56E2100806.
Champion (feat. T-Classic & Blanche Bailly)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1a4d7118ad2e173a63186c54ca82f1d5149508ca7e57b0ad3292067ce2ed3a. 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/ZA56E2100807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4585e656b40a8bfe22f7078fba8d4fea2d68f20e680f24389a9bdef013f0f1f. 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/TCAJB2498272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d56be483bffd01d1b6be9f1945a18447a24c0787e6b0c47cfad3444c6806c0. 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/QM6P42133658.