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 0x86923e549bbf40f4f886d3fd2942a09470d2c4058d0c21db139313bb3b373a45. 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/b8adbf63-0d7b-4f0c-9cca-1da7c5f0b3d0.json and https://artists.proofprofile.net/proofs/artist/b8adbf63-0d7b-4f0c-9cca-1da7c5f0b3d0.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 0x727b16d31b958bf79771fba6668d8cf8309039680582edbfe7a6759e30be8c23. 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/TCAES2057010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1febbf67ff89728fec1f423fb2f1288fbc9f8b0da9481e70aa5d123f9b18bba5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/INUM72400542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee115c85f58cf7668959ad73882bf8fc494d7c4a3080a12c8a3fdc84edd63538. 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/INUM72400235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cb0730ea376121a44574aa45d042bb5ce077d37e71666855fba46bf23b61ff8. 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/INUM72400462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937dccda082c88f520b898e618b4d316372d5db271aee5902caf6b42dd363d13. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INA3S2106146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc91d5ee896e16514d0fbb98a280e0bdaec14d8bef8680abe7501e4b01119aca9. 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/INA3S2104696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abd115ff83b6d05a55b93d0b44ad540be42afdaad686e773ad4337eab88511d. 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/INUM72300736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b15a8ea56c0b0f3790f7abb772447d91e30eacbe1ff9a8404d4a37933e9f70d. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/INA3S2100489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1440080d22118b4b124f90766645cbf82b3678a96576692c0c453980ad799ff5. 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/INA3S2100215.
Khwaab Adhoore (From "Faaltu Engineers")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf416aeda3e514b2e9155c88591dbb86858b47514bd0960d016e857c9485646f1. 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/INF232200553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64a2f9899ac15dbfd4eecfcb01ee34895ea0dd069dfcd9fb0c48f01c4fe9654. 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/QZDA72200609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d176b302d384c13010ac00cd47d202dcb975198abb237c39415579dd1afa73. 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/SGB502100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fa39d68831b176f8e9463857f83068acd22ea95de7272c9235b3d5438086f5. 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/QZNWR2176032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa470d4432578491554cfdedd09644317ee704e1d236b2171618e538ba06e9847. 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/QZHN61994525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x761df5446d5f22db8554e63af8a452ba8de2adda981e177f0c7874712d11e2bb. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/INUM72400228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa9b70a777a88f6d4173ba4da9115d2fb90a7ca4b41ae6d483481381ebf8f4e. 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/INUM72303081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fdc62907b766f53736458fd020f3c88b0bfa6af2230c120dfb2344f8e3aa0c. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/INUM72400230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abd115ff83b6d05a55b93d0b44ad540be42afdaad686e773ad4337eab88511d. 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/INUM72300736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919cc1318a095498a8102756f91f633a12dc17938fd97d6bea6506039ce95da7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCADK1712757.