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 0x6acc895763239d86b93319f347c057b623f7bb783abf85bed3a528d11dfb6099. 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/1181670e-3acc-43e9-9026-747902489164.json and https://artists.proofprofile.net/proofs/artist/1181670e-3acc-43e9-9026-747902489164.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 0xfd75256356c8901e3f7f2adaa60430ab627f4eb8c1423e4d95010f935ae0cbe5. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/USA2P0502609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c8b69d7e8ef0d337e23cc9d1ef2d03a61e673149db22ab4c4d08feb5210a06. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USA2P0502851.
Ra He'Ya (Make U Sweat & Lipe Forbes Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc3b1a9d5b58600416ac676971406cb429003874974ddcd5af0ef94cac5e8d2. 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/DKZVA1962525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4620734fe091efca807c1345497ce639b591c61073f13d356551ad77d9dc5f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLV62124542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77523e68b39f54bdfa6d1383c25d83b9c40317d7003ee9d208a04caff4298533. 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/USQY51268083.
Who's Afraid Of 138?! (Vol. 2) [Mixed by Coming Soon!!! & Ben Nicky]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa230dba8456aa35fafe2c73c06d4f3f0b5dbce7a51f21c219b8a038bd261582. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/NLF711507127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c91fae02e07a9eb73afc4403328efe79fe25e05085f917907cdf424469b8a73. 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/UKACT1945859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b86651e375fabe25d2c1b6a01d0c4954cf9bf3a22ece2e17a7425b227ddd091. 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/DKZVA1360335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9094b3a529ee2d6c5a97c08ffead3f9ed63c0ba37fab27432367ae3ad0c616e. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USA2P0502576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aebcdce5401bc57c6bcb7ea00d2bc52092aa540660a03e0f9c85adb32031dc8. 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/USQY51754417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb5b550f8c57e77add4a347e34159ebe51f1426b5a3f4621ac873073c328d93. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLF711506544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307551acffbc39e7e4cec1af67f410a87d0e6a87d9e8e82e115f8c02ce1e4a1e. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DKZVA1260090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2130b95988809ff162e522076ccfb900ae73343b05c61e7e79cc89d8a6769c. 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/USA2P1163403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761145ca1f3a9198d9a1739fd530a2390dc1c6a58c25ff2189d1049361168d5e. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USQY51739401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58cd0d409af7ee89ad3ff80d9e2a56c8fdf0736b19cb1221b79e55c2a95065bd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DKZVA1360288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ae6008b1a53ec17a42fce4c7786853c13a8ccbf609e1df8c9e30934b660722. 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/USQY50932708.