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 0x2f9bd0b407204a81d8a949d4ee0294bfb84b49c243a4ccb9e117145f12da6f57. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a905452a-5140-4e32-8522-616d1991ccd5.json and https://artists.proofprofile.net/proofs/artist/a905452a-5140-4e32-8522-616d1991ccd5.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 0x4b0a5537360d2cc61c189a98e5abd63a867b98028e023dfbe39c6917020de5c8. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZFZ72565979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd74a70472a4d7f3e74a927bcda8015768b33c74ecf5cdf5ecdbfcc700c30a5. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFZ72565981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab5b620666d899afb3b691f7483ae6aecb3bc95002528398c00548e7d58f082. 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/QZFZ72565982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ded6c081747b5de15605863e67d45d82dbc8edf2090792ac0a843a885b94ab. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZHN82561250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32eae31b178315839f813714d1fd68e54cd2c0288249b3882f51f9e3b152fc0. 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/QZMEP2558306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42bea35c6650becc160cd29911388da04ada4b1b3f1a835f9f5a9366c63770f7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZMEP2558308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2808e49fc47833b60cdb8456040f3a76935ce0899333f222ffb73e206bb5b33. 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/QZWFG2549219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd963dcdcbe1ff2156aabea0043bf3c6915da92f4e897b0ba7a9eac57dfd8afc. 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/QZWFJ2561470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cb46c16fd8112b017a3d9435b6fee7a014d177d56e27db8c51fe033e1de993. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/QZWFJ2561471.
minha mãe ascendeu um cigarro, me lembrou o cheiro da morte.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bef40bdcfb895df0dcc52f9d7f3c1cbcea5f146115d420bd8ac51ccd417d048. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZZ7X2502729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc84a33e07b285f2df8b21b16f573913d255875e27ee67c928160a29c640936. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:14:40Z), 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/QT3F32510673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58bb44323cc19c4f4a13e2274bbbaaaf6d00a6434efc0059d1ed572d0bfac1c. 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/QZK6J2551477.