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 0xf0ddad10688215fb2c98592e56a193be0f2d6c1b61fe58cf21ba371b4e6b62e1. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb2cdb53-6717-45c3-a4d4-750c7fb882d4.json and https://artists.proofprofile.net/proofs/artist/cb2cdb53-6717-45c3-a4d4-750c7fb882d4.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 0x2ba0d6c157d6f5cb4d61a1c13773a9e9f75b95693b507e0a7fdf78d4aef2137b. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QM4TW1939347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b5882b6c1d539092d2313b0e062334448a12d15003919f6863bfea84194ccc. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM4TW1938384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73393253ad59f493bbb90c9f3575722b363131cd03e4c5e10d15cfe332a7797. 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/QM4TX2051598.
Naginwala Song (From "Token - The Treasure")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1079ef0f788b8f379c5aa7ab85076abd0216f81b47f1606624a27a2fdeadfd4a. 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/INS182302423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2065bf1cbed1147ae4067196d12bd6eb51310201dfd9681b107bbb61d29b1c95. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:10:17Z), 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/QMFMF2385048.
BIHU RE Nasha Sa Laage (Bihu Re Nasha Sa Laage)
Asia and Africa - Together We Will Rise and Transcend
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f0b141f94c57dffd87d54d10469a872bd1439c8db898b947416a1867931ddc. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/INH102505228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc0b4f40777f2c4e539ce196181801160ae1f81bbe70d0810d86bf698b95328. 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/INS181501180.