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 0x6a0d53249cba804831fafc54d2630383532aee11906e1968f8f989f41aa153a0. 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/0a58bf85-c444-4ed5-b46e-ebfd9ce5d2ac.json and https://artists.proofprofile.net/proofs/artist/0a58bf85-c444-4ed5-b46e-ebfd9ce5d2ac.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 0xb0e13a0013835f6e0bfdba414ce3b4e7b8549a19b5a6e491320bdfc3575d3a37. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNWS2448606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e13a0013835f6e0bfdba414ce3b4e7b8549a19b5a6e491320bdfc3575d3a37. 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/QZNWS2448606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48d03cb8fe1aa632f166c068d57fd71066a66f7f0a5e9107192d89a421c7c9d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZMEQ2107176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49596560855b441756644e50557a0451b04acb5b1b76b4fb176c9776435aa046. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZHN52336488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49596560855b441756644e50557a0451b04acb5b1b76b4fb176c9776435aa046. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHN52336488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934a10176584e2a154de96b9af0c6d69d7c560596178c1f135a3f5d0368e9140. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZES62045678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bbea91c203f6e21d39e16a74f4f6048b73becf27957c2fcf1af4b5dfa2481ce. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMEQ2107180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6969cf759fd36f4c43c81e2d80adf26ad638afe85ed682172fd953aee499284c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ZA9WG2100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28ab38efdadba9012f1768f3fac01190d6e57a4fefa8e235c84de00b711531d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ZA9WG2200004.
Phola (feat. Marley Girl, LA Beatz & Augustchild)
Ladies Night x Cypher (The Last Chapter)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24ad1813d790c7d82a12907ca708967dbfdfbfb02cfbcb7acd8d9ce926dcdb3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ZAE1N2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016bb66404f67d20d0e5a88b196dd098cbc126ffefaac1ebc3abda23c915cedd. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/ZAE1N2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf4ae2c85275a6279f65fc4af5a4504558d4ca30d2781a8749dfc9b0bb4161c3. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/ZA9WG2500001.