The domain com is a top-level domain (TLD) in the Domain Name System (DNS) of the Internet. Created in the first group of Internet domains in March of 1985, its name is derived from the word commercia
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 0x808a7edb616b7daa916dd6c719e2a8235ae2d38ac9689760ef5595d9683d8918. 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/bd648ba9-1e44-45bb-927d-d225c8f4483d.json and https://artists.proofprofile.net/proofs/artist/bd648ba9-1e44-45bb-927d-d225c8f4483d.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 0x9419f0db2b183b6bc3ffcfe826d777341b1540340b772ad0e174984beb798472. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:37:50Z), 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/QZHN31979565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb334e490b7a67c21c38dd974dcabe10a750156ee6676779660ce9b1ff0e62eee. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:34:00Z), 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/QZHN61919271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9df2ab03880434e42c2c4591ff470745c7ced735c004b88090931a8c94605a25. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:52:17Z), 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/QZFYW2005735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f68c4d0c3f2f9f4ebba4ba17f9f15d1cf51b027ec05095c4e28fad6c760d88e. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:03:14Z), 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/QZFZ52070322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30c10116b927996bc679a735bf98e6034f46711c7d5d01e541ea1913e3219bc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZMEM2013381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b27a73cbd7bed627b7d9582ccc6a230504c2eeae05417b4eb72eaac2681f56. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZK6P2188492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc8975080f7770cf0997c82f1f31b31b75ac35d19ab3a7abe87f2b92ad0ff73d. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QZK6P2188493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219049cb21c2678ab0633b0e02df327fdcebeec425b65b3b3555d267f8789e25. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/QZK6P2188494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2856c4503a1f3377a935aa780efc28a81c1b02e034ece449de6923e5eaf549. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:54:15Z), 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/SE5BU2495378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05eade150d7fe1da518bbf78bd8d7343fb9762c8359d3b25f035ced54a0df12d. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/SE6XW2565759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf696c09b7ac224d1717e682fb9cd1f78e768e592f2df53cf5f43ebf72bd2c3df. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/SE6XW2537782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a70f1d1e00101359bc7c4aaed27ea7728da738511c385127301817590b8177. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:36:56Z), 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/SE6XW2565760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ef7e375736a0294b611024b961b14ac780706d6c1efd9aa6a98f10dbaef664. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:29:42Z), 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/SE6XW2565761.