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 0x2ddc041854c40228e5b706ae5702853de7a6d02ea849a781e2d5efcbaea1bd7b. 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/910cac0a-8821-4e71-bcfe-bf2b3912fc46.json and https://artists.proofprofile.net/proofs/artist/910cac0a-8821-4e71-bcfe-bf2b3912fc46.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 0xdc596e66a8ede6195013d51018d005c40a5db89bef297b1a374bc625c17c29fb. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAEK1996531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2890b35da7db4072dbad6bccd7915c4272b9436b645082f7091e1fedec228b6c. 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/TCAEK1996533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471d2dbf1ac3003dcdaddab1f3f3e92084e20d76797629de95f0c0853989529b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/TCAEK1996542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5988340410d9ae6b1f9d1623c9ae42458f23aaca312fce83f7e84b3070d5f6dc. 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/TCAEK1996546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfb6b0feb64e086cb59320981198294100883d8f7487c7ee860136304a7811d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/TCAEK1996550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b02df0bb2adb960b54e47a84895943db922a8065ab0c582d2171bd2d799bdb1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DGA062478135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x105c1d8108247c04e5e46ad8c8591299c60530e1a100b2663c1ced4127584ecb. 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/DGA0Q2425477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e44013f6cae5edb02c543700d3619ef6592e4c42e554a4bffc2142172330540. 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/DGA0Q2425478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdfeb663240d1296951dd17f30f633f5b9546c8bba7162e1f7e8b14a387ece0. 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/DGA0Q2425479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d03ed9e52629f3cb2cd62addc1317002e39ca71af28d11b6189e5161257060f. 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/DGA0Q2425480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca9d5f5ec6049da03d182e430e78ca16d2960c964fbc4a239f5c5f092c81007. 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/DGA0Q2425481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a9f4d1cc93271bce878c8201df308b86344717dea26031d75435217bc31870. 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/DGA0Q2425482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee462dc81187793bdff2dd809265db85a3b25b732d79b909980c95d20debb8c. 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/DGA0L2493305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bc0242496607c1bfed8d16b133c78e27e95a71172eebace3e830064d2d590d4. 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/DGA0Q2425483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8954d46e3a67d08d16cb7549fb5b05f3131e6f80a1e1399b31bd2ff504681c9c. 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/DGA0Q2425484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b252c37292bcfb1071b5f348355872a6192bd916765ebed558a027b9d11b349. 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/DGA0Q2425485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1067e4ae83349be0f8003e2c279263c6b6affd770f8a6a22b48844ac72686bb2. 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/DGA0Q2425486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a31bf54825ad3ed0e13135286136d5fb762ef3da5d7421d855b90eb80482b32. 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/DGA0Q2414169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01b71cbc8fb873f98c271c854ce7131f4dae7a474638f2cde7ab5e88208d6bfd. 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/DGA0Q2425487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06d357d35933b4e89ed51ec235df416be17a66f9bb7e3aa16e22e257c6b3f647. 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/DGA0Q2425488.
Vara Asta Scot Album ("Fraze de Soare" Freestyle)
Vara Asta Scot Album - "Fraze de Soare" Freestyle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9be5d5636b6ac49622f9aa1b053f7789df41f618fe7f7603955cc919ec035f8. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX452545653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9585b401b1d25a40ca14e23d982875e9bae8acc8556483445887fe394bdeb1. 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/FRX452533419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d1cb4310d620124d0294e714a7e765369d473304ea00dbe1ca09306d460a9a. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/FRX452533421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7b1b3e73a39ae4545017749621a0bd5668dd27192d539d9c9fa1100976000b. 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/FRX762512134.
The Dummy (feat. The D.B.'z & Stress-Matic)
E-40 Presents: The Bay Bridges Compilation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd10acc95c50ed4fa3924ae851169706dac0821f2335464a4d80bdce61b7fdbf. 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/USQY51351894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b966af116f6f972702a90f6cf1c56f3a7acb8a38a73daee8e610b70e88263ea. 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/QZTB92482917.
I Gott Grapes (feat. E-40, Stress & Donnie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b7ca6824eb1a54784695035f2457d422d0aafc15d190453676851fde364f89. 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/USQY51351767.
Pills & Weed (feat. Doonie Baby & Stress)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535ec7cb990d644e8a319633544f8a18e390b4137b8b13f8bf92ac0c9aa579d1. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/USQY51351855.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch