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 0xbf0813ad16c1dbcf53c1ad880603e041c6cb17c38cc9596e1f7f496a078ca482. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cac8d0c8-a7be-4eb9-bf34-344ad38f3f83.json and https://artists.proofprofile.net/proofs/artist/cac8d0c8-a7be-4eb9-bf34-344ad38f3f83.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 0x44b56349ef61b9f966cee307cbd79023fc91a32669c1e87ead30614fa31521c2. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCJPX2339638.
WAS NOTHING THE GHETTO (feat. WELL-DONE)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8770c93dec8db4814c154f0dcf6586630d5c7ce63e5cf2567e14a45a6888125. 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/JPS802354954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6572632f2a800b90fc80201c7d4791b167a1db3a2c44c7b0559783153723a797. 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/JPS802354946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc34dc174ffc4e7af4076e4ca012f398b2661f7e4858bfbd12611e6f735a83867. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/JPS802354961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42818f0b94116602b8e4307b266a5a6e3e759e7bcc829192b59f77d8510f1350. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/JPS802354962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66cc1bea44e14e207e9bdba0bcece368e7e4bc8dcc49b516ea59fc78d82e7bf. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPS802354952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984916a3ab4f5733268fa2ccfb1b6c1f0c36c372ef934114a5e26bca24ce32a6. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/TCJPQ2144037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80d922171d231db4156cdcbe9fc2bba49e43fc915ecb3b5715bc64dd82e4427. 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/JPU651503030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x308f126e114bd50393fd9614290471511a323d00b9702eceda259f2488f7d5ba. 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/JPU651503040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f5a4cc42c96b6c75cef84a1af8b62dfa082aab2b36ddb71292ff5b5c6ec310. 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/JPU651503050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c24c08451334299834b8c50e61c8f1cedf6e304e13614607469461c9c960454. 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/JPU651503060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d15c7957af614feda13c86f722e13cb39a6e5848a42d43c1678abfa3c796d2. 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/JPU651503070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40b663475eca502ee1b1b1dbef0d0c368ffd181e9f23b924ab9dc4f337d51e04. 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/JPU651503080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4dad28f0d76283f65911206a195bca8b0cc346da7848ce49e1b4427100e367. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPU651503090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c72fe6dca148c0a1589a745524b9c69252eaaebf6e1002995f03240b7c43f9c. 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/TCJPC2415837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe24d56e3e111b062f8ea1fec0aa85de095d43ef6bcca9548b2104ff306114c8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TCJPC2415838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7efc6dc9565f7aacac96e6540426ac64b18995c88e95434eec5068853fedc7. 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/TCJPC2415844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0245a55d152da0787e7c90e7735141340ce3a2b2c7f6830124fbeba996cda646. 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/CALVP1923414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c08f3183c91ba996f1afe5546a7bb0a588f0e05e3e029e3926cad50c3ed14d. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/CALVP1923412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2386035e566b600cc7ef5fdd055dac6ad2df0a03d033c0653d2e3b04701535. 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/CALVP1923413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecda6854a6356519dab0e9b72efb0775e530dc4869ad5980a27672e8e0be894. 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/CALVP1923420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12bb6f4ce9d9545983889e1570553af91aa6788ea808c63ad6de1b48311502a0. 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/CALVP1923419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac4b7c9a0610b9d2503fc7d726ee131d052d0a1f1db0d8bb444b7b414c261f1. 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/CALVP1923417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099d10e251c97554a1fb77dcfddb4b804048c5cf8b783f87e6469e021a2b242c. 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/CALVP1923416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc9c48a615595bdfbbafd59d5731723b94e4c27f5838a8ef1d6c68e8b7b4725. 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/JPS802354391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c6d091914fa90b4bf47694cde6bb15568fe8a43b2fe8631bffc83c5137ba3c. 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/JPS802354392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ed6bab43f6134de664b9602a08c3ab595a19c47b903ff045892522ce499ede. 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/JPS802354395.
WEATHERTEC (feat. GOTU, JNK, MFS, JASS, WELL-DONE & Koh)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaba161acb352a8b37c72bf7c53b49f6ad538c50a01c2a9e94d4fd299cf0cb47. 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/TCJPY2493450.
CRUSIN (feat. MFS, WELL-DONE, Koh & JASS)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1602b405e59cc70120c404a4bbfa2ce4407f54cab14ea66010e37343d16e3e9f. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TCJPX2398072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a4309e2c65c3f7893e2e27c3b9552f1e98f8051008ea19d453c04ff77a7f8e7. 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/TCJPA2492838.
Wind Era (feat. WELL-DONE, ILLNANDES, S-kaine & DJ BULLSET)