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 0xf81c7e923e54799ab0b70a84193f9530ba1276e8e318cbe390d7db4cb5a22f8e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2242b51e-0b7f-4c9c-bd08-07fb2e226f5c.json and https://artists.proofprofile.net/proofs/artist/2242b51e-0b7f-4c9c-bd08-07fb2e226f5c.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 0x070f1a6c7c38c1865c0b78051f9cd64864e4afd8a6caf75aff98e00bbc0399cf. 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/TCAFA2017365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d7e6dd0a998c5ce8d096c08acd3b8282179cf4e291bce03964aa18b2bcabb2. 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/TCAFA2053854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f8e8cca72e022a59035ecea192f2fb6b37aeb8099f39d4e72fa95af37ed775. 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/TCAGF2298504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884493c36b8ec60ab5a592eb0a7663efe90389b3a2dd389f13042553989ebf53. 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/TCACD1507031.
Musics Bait (feat. Mental K & Young Scribz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c8952bbd3773765caa1081d476409ee4585aad65810233a7e7c4aadc2a3e0c. 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/TCACD1507040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c03d3179b2eecad822eff7f9f76d486b841f399a2780a083fe62d5e420495f. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/TCACD1507045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723a6e90ce1b649484262d11b5dec198c3a8d1a10bc96930af1aea15ec0d3877. 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/GBLFP2040526.
Intro (feat. Blade Brown, Mental K & Youngs Teflon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5310ff9c1403a1ff4a56897f29f491cca8d498613cd69a12ba644b3bd9dac86. 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/TCABN1305775.
That Cream (feat. Blade Brown, Youngs Teflon, Mental K & Scrooge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf372d5e1b68e7d53c92581a6c2415b127bc5cb3dae9e8ea5b7279b6dd59d70bf. 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/TCABN1305780.
By My Side (feat. Youngs Teflon & Mental K)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c3af3ff306b28d0b4797eed37c5c0b36da0bb344502896009c7b583248edd9. 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/TCABN1305794.
Couple Rules (feat. Youngs Teflon, Mental K & Omz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c3004b8d2dbc3b66499a0addd349ea47a15a854275d18e1849bb0a8c3fd8f3. 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/TCABN1305784.
X Box (feat. Blade Brown, Mental K & Komoshen)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd909ce99e4f82c69d4ead2365d4f11a6a6301c4454a4b0ba98f3bea7039ed5ae. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/TCABN1305793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae1da5311ac5f27043f5927e3ef6a579ada3f08b2945f30d75cbf5ff19890c1. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/TCABN1305825.
Drug Money (feat. Skrilla Kid, Mental K & Blade Brown)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2c763f6ecc1fd088a71486fb67a100941ea0a9c02f4de468cee9c7dcd1f7ed7. 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/TCABN1305796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fde3324334bc2190ad81048093c9075a77042e1152814f7e494f534a499804c. 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/TCABN1305798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82de5a7e50354e8edb041094d98bc917f4b9833954f25d308e906159b4abd8c. 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/TCACH1568566.
Six Gods (feat. Mental K, Ld, Asap, Monkey, Ghost, Liquez & Young Scribz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c4227ab9daddabdbbfbf0ffdba3b5ee9e6ca8ca640c9490b8590c6d0a78e4a. 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/TCACH1578480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd2fed29fc5100ac51fabc40d6b96ba28f8d6b9237ef8c74448351cef03d2c3. 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/UKXN22357253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd2fed29fc5100ac51fabc40d6b96ba28f8d6b9237ef8c74448351cef03d2c3. 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/UKXN22357253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd2fed29fc5100ac51fabc40d6b96ba28f8d6b9237ef8c74448351cef03d2c3. 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/UKXN22357253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a9b8618f7b9931100dc1fc22d4e7bc53ce2888418539cf17bba6ec10ad1f0. 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/TCAFL2184036.