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 0xc6a7c21c1af94cfcc4bfbc923ed89cc758dbb28051cf4bf11c8f30e59cf89b2d. 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/1c9c28d0-7c7c-44e6-b1c1-67c526b7049b.json and https://artists.proofprofile.net/proofs/artist/1c9c28d0-7c7c-44e6-b1c1-67c526b7049b.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 0x15135e100bbe91d824a2d8efcbc79aad1e260896a318e74cbfe08f1fad11d466. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USA2P1160226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6238f956c101db596bd8237ff7515b2e33eff3610f335eaa710ca4a4daa0d308. 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/GBDLA1290134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e9566c133f2136ea62fcc7342f302df32464d4607ace8d09ac83b317feda503. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/USA2P1266415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4237cae6896272f216a1ceec7b22bbd53dda3b095ead1d9faa9a4f892af2fdd. 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/UK7H21500077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ed847cb55430501b48fdf424023ab582b93d23764903fe94979e5f4a4dcb737. 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/QZS1Z1620713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75e3e9f773934cabf796a200ed8de5167f8a64bbc19cd56b1c92c0a2afd1679. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:50:00Z), 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/CA5KR1816170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77634b312ae14a3fa13b7bc52267b756a08c29982ac1d1ed5adb2a8ddcffff7. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/GBUM92000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc073dfc48267dd08cd4d8310dec74d58f6e471d338816b405470bd8750deb44b. 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/CA5KR2020621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368361d70166b49e730a75591062aabe79602ab9edc54e9cc99b249f0f6de797. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/QM42K2130080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65c682edbc9f083b269e3ff2cd4498074286f9760a1e4b0e14769ee2994d38f. 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/QM42K2146092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5950a2916900e9c7f8bb0450b9323bc5f40d4e918be5f17e3451404250f0e. 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/QZHCR2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75cd50e6e3dea19af8824b61a087e3a1db612e9f9cdbbfe44eb7194366989f7. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZHCR2100071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a76f2c44899f87cebbbc3704be7431c1d275513bf7ac37b95949e09e09743b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZHCR2100072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60a806c9c8ad050bc67e7b29f1cc81fde159c63e9732a05fe597b0aa7a3154d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/CAUM82300196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e593f805d779f9bd8eaf59e4b8ce17fcc07672694d749d806a5476deb86897d. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBUM92000080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5950a2916900e9c7f8bb0450b9323bc5f40d4e918be5f17e3451404250f0e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZHCR2000031.
Gummy Worm - Dirt Monkey x Jantsen Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823eb47f528044c225858607f354ca89ce13c556cd27c024c1301659c366e054. 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/CA5KR2309849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d98bccdba432f5a42387135f7bcba1b0df12170032237c9a803635318dae4d0. 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/QM42K1943363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08346fed0f91352a7f4c75532e3fc1641e2b2a09a0584f618aba381d68e5d1c7. 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/USA2P2127865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee87b0da9ae21eb70ac33f264e36b32a557ca8fc094877eb668a613415963bd6. 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/TCADT1888434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a1618ae3490eb673c6f0fbf9236d25c681eea60d7f99ae95a88ede057aeee8. 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/CA5KR2380539.
Gummy Worm (Dirt Monkey x Jantsen Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823eb47f528044c225858607f354ca89ce13c556cd27c024c1301659c366e054. 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/CA5KR2309849.
Lost In The Crowd (feat. Fashawn, Zion I) - LOCOJA Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb003a4773ca5cbe701ecabaa7ff0e49e100ab3429f525a7bb7cd658525cd0472. 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/USA2P1467645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5dfff0866632ce6783c47f4c5000d8dc78bd6c04bb0de65e1f9c6a7dd2ac8e7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/CA5KR2401717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e593f805d779f9bd8eaf59e4b8ce17fcc07672694d749d806a5476deb86897d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBUM92000080.