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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378a5f47c9f31a6a69b04f7caf8311cb800fc5573303411d1d2427c8b52cba3b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ae18f65-fa37-47bf-b873-f6e01aba1c4a.json and https://artists.proofprofile.net/proofs/artist/9ae18f65-fa37-47bf-b873-f6e01aba1c4a.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e842b7c93af3c91c2f415d58a52c4cc17a8b618964c883568ad0cdc0fb504b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USA2P0614233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fae458070397bff54597f9160befb75a627396f138b6ba7e42e8ab614e849a. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USA2P0614234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44dd8bfbc8193bd6727da4035263a4424204d516f73baa8f6d371030e87334e5. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/USA2P0614235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15e0a58b4b2e02262357debb516ebe69024ca346579ac2a2db39816aa06feb8. 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/USA2P0614236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e3fb4e18a510cdf441f431807b991d53d9bd315e791fb3c52cefb30c3cfc71. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USA2P0614237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8887482c03353d7ce043fb014d5d90b058af1a5bed6c842098b17259557a9d95. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USA2P0614238.
Nuthin But love for Mr.Cee - Feat P.O.T.R.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9415180f7db313355a1bb7f8e843ac5dcf44573c07c84aefdf224d8fe765b23. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/USA2P0614239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ce3d7d84107cc55415320f54563504d5dba6299efc0b0ce339c1c0f364c35fa. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P0614240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811015bc135e3b0f977266d175bd8e9d4bbc0c8d422bebe5987a8c8a784d1fd9. 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/USA2P0614241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c0ac3195704a41bcc8f344eef96d87204cd96a3b7efd8d3c8c35e4fca1f7b7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P0614242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a7f50600ab8ef013743eff52ad4efe183396394809a19eea345f50995c193e4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P0614243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5642c7b555265eb46dae6ed44625ac55b8371a79de3d06a8756ef892f0cfc2a7. 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/USA2P0614244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf38b013cb7d7f160bdd4098da6631cb6366e7fbeeff71c87877f06a832ed99. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P0614245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49656799388e296d1c16df38fd12e0fc8ce8923fcaec79e0235ba4b0aff2fde5. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA2P0614246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b5cbb0ef4bd0dd7bdd08ffbe9545f24689d0f5a8009936f7cc1ad838f2c079. 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/USA2P0613490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fdc28143b5725fe86ebbeb271301b131a48ac57c3d3d864e57bb85e680cc55. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USA2P0613491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bbddd057830a98800e8a91bc43a98448abad57dde9cf591a58afd6b78b0f35e. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USA2P0613492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368402af011faa29912db4600df47c238f944c8bdb1a43326c3ef53080e510ac. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P0613493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd84c3353d270f77d9013e0649edb14e3eff0428ae2ba03f4d7cea330390c46a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P0613494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36510d618b4ca77c1863d99d7883b640efb3964a6f2e2cafd70d787495e54ad3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USA2P0613495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbddb60cf062e04a691649ea5c55f737bbc86c423ef59a8901a3aa255c0dbf6. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/USA2P0613496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38307c6c29d4e5804a173e18c20201575664e1411d27996a4adb1a451084e2b5. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/USA2P0613497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc84ce7fdc2b27537a7aa214014575d0ab5aa23a727cb76ac7789e325fe8b030e. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USA2P0613498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934492c0cb95db071a3162ef87c56c7b32f399a9482d717beadbc72b3fea441a. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/USA2P0613499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa9e2bb90bc6ec63cc42618d7582076010ca3e00efacb60c0c9e5a485d5d9da. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USA2P0613500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bff1078c53e8b65e1fc14246cb44b734252f97e584887b7b7c738cd182e5ad8. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USA2P0613501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43885e112a65790f3502bcef320aa3862d6b9ae7f54bf66b060ea525d22293db. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USA2P0613502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa614a6f4cf5d3e116979133415d1136780338f23ea8e72c995864ce63c9fac30. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/USA2P0613503.
Herm Presents Trying to Survive in the Ghetto 2000
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cc991b62844cdf54e725d9e83a2fe2ed468839122f4187b29d552fef203676. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USDYP0810695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc0a58f3eaec52bf382c3218090bf956237954e70cf4b0d886000d8f31bc3deb. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/USA2P0613691.
Straight Lacin Pt.2 (feat. Femi & Cristina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ee08279fa4aacc368793353802a86db26471b5ac3a5007e1e18638afb70378. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/USA2P0613709.