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 0x306e47c2db1270a7779b5b1dd02de272e6cf3d619eb783046557170ea05bb664. 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/c663ebd2-dcc8-4293-896b-9cc19b704ef0.json and https://artists.proofprofile.net/proofs/artist/c663ebd2-dcc8-4293-896b-9cc19b704ef0.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 0xffc18faa7957a856c213e5ea76333c5e2ef241652291a9dd21d2267e35e63880. 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/QMDA72326916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fab4b3a2b05d19dcf4e844392c8e1daeb4f4cad0668568643007d9e7c1ae552. 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/QZMEQ2498626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6845a1019b49e8b6e9486f9ca689e75c83b8b25d3e737094c455a13fd4c2cf0b. 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/QZNWX2428623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998ab13035749a9af1c61784459e24ae81e9b4aa6edef64be5e2d01816ba3f76. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T23:07:21Z), 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/QZTBA2322911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb6bc5a1e639269620e30e94eeea2c999b922c9f69573ec7f132dd0cb1d841a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:08:28Z), 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/QZTAT2401811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532d692bd639fa6a5a1d8f3fb46fdd0298f45f2ef4e9b2b8cf0240f43c914c74. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:09:49Z), 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/QZTB32407855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd17212ba0ec3c487a24f944f9e272479f9dfdb8c668546124f6f980c7f7d4e. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/QZWFH2443497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea76fdb26c49845e977371ed954048c93f74802d50bec72967b68cab100c5ea. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:21:20Z), 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/QZZ782493458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e34def06fed2dd3e71a48de8d66a9ba5517179714f1b68e9b4395064c16ab78. 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/QZWFU2401003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb6bc5a1e639269620e30e94eeea2c999b922c9f69573ec7f132dd0cb1d841a. Chain 2 (Bitcoin): anchored in block 957752 (2026-07-12T20:53:32Z), 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/QZTAT2401811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0a12be18cc046ba0346f25b1807c687f4694f4114fce3dfcc7878a0d10645b. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZZ792404447.
Cerulean Skies (feat. Kaitlin Butts) - Acoustic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9474a756af2d8e22b74b5dece978930e23ceffe6278f4b40ffdfcd818efe57. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:24:04Z), 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/GBLFP2515132.
Ask Me For Nothing (feat. Gene Evaro Jr.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e7b1f3202efbc373481b151d543adcd4ecb089e1df61c88bee530c3efbfcb5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GX53U2528093.