1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb855a23d2171f3efc01fd99392c358d8cc67c251b06e6af97546680cda4354b5. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad01240d-d563-4470-ac9d-e552b3ce408c.json and https://artists.proofprofile.net/proofs/artist/ad01240d-d563-4470-ac9d-e552b3ce408c.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 → block OTSBitcoinBlock must exist at that height 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 0x43c4413d48aa32d54806b526232ff86e1633344e5d9f9e8706087e07baf64ae3. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TCACF1586143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94118a9dbd0ecf633eb65773fffc9e51567ce81de3f17e09af80fcbf5be5df48. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZNWW2492509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015f3af2ed24d4f1b5f3f93f027710ccb29e8767bc830a913983b2f4f7e145e8. 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/QZNWW2492510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf245526a19000cc7346fbd476af4f5a60fe08125653b709c8a35f2c86268a313. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZNWW2492511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c13c0b8cb57d099584081f58eb0f500ac0bf50d49f1d81b9d2368d22127829f. 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/QZNWW2492517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edb4ce11e262d645022f96abe74926aa60343e1711963881b5e6973df1055a8. 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/QZNWW2492518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16333fe1c053081f170c667f8be6ed5543b455ccbe86be68729c82e9422d32fb. 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/QZNWW2492519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd51e10b6bf84caad715ef2beac13978d8185aca7177493ee7a35f5f667774bb7. 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/QZNWW2492520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd7cfbd9314d0b2542cd92d4b2851b61987762042025a386dd40dd2dec5c40b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWW2492521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad759c9a209f40d452b203bafe385c0e1b83b4f9165e9b6412ce853f464f394c. 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/QZNWW2492522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde55eaabae85e1839780ab298a29c94ca7a436f7d99b20ea6c2f6bde2a793a01. 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/QZNWW2492523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1369c5bf43395ed33a8ab5053b1b3ef9e5a47f5ab0fadaf759b3b6ca439d0456. 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/QZNWW2492524.
Put It On (feat. TC Da Outlaw & PT Primetime)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc073ae3bfe9440f7bd00922c9f4521702ea63f3e6d8217b8c9cb99c53ef554b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZNWW2492526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8ea8a736abbdd103eab3ad65f64252aa346ac8510c16615fae335d8fc21765. 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/QZNWS2404156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe33381a6ae8d57645f1827108e30327d8feb67ff3ccbe580b7f5bbde849dae31. 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/USAT22501316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d89c33c15ee6dcb82defef231dcd68c0776dd90a0452f9125e09b398423434a. 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/QZZ8B2410811.