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 0xb784169fdf8e11d36438d89f4006de805972ba7585bc53682c02bb8431b178e5. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e67e9d6-6013-4201-a46a-4e878d08ad17.json and https://artists.proofprofile.net/proofs/artist/4e67e9d6-6013-4201-a46a-4e878d08ad17.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 0x277c1010c43cbf83afe327db03161061c1e903e185e3d9bd0b7ba2c2ed17140a. 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/USUYG1073674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99d3ec700bc0414f0de0d5ce56b9d9ac8fe242a103f7e3aa88c1f86b01651ebd. 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/USUYG1073675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a78cd0cbd432a3e6d00968a70dc6e6987673741cd250fca8431a098df1c39b5. 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/USUYG1073676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383c01e0a8389d76b5f5bf0f79af23e5f047b4c602e3f2d0133c192f7ae7e94e. 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/USUYG1073677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3410e039662fabff2ca6ad11fc284979815054df2ea0af779648c8ea7a479a8e. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USUYG1073678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c8a598c47fa95b17923001b9be7e162bb2b92eafd5544fece7922e2a56ddc92. 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/USUYG1073679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51a5259e72deeee9d635037f15693cb7fcd97b656307491ee16133fa1c2e7bc. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USUYG1073681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1221dc7728cbf0fe000cb54fea661e999b1c14a8d784673011a83628222ed555. 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/USUYG1073682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe40292bb8b0daaa89094f27e946d6af5202a20ab6ba0f973fa7c20da2b8f15a. 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/USUYG1073684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86b27f9879b6a394485e50530f869780091f5a7f0c5193edfc2a802f1d80cd3a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUYG1073685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c4e83cd222027eaa67a1f4c19ee36df007dca24aebf6f3f60f6d8f9c62d57a. 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/USUYG1073686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491a2b3c2aea5a9c24c88fa418f48770bb7b8a2614b08576485edfa83881fbf8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1073687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x803f022de03bd2b9deff931b960ecae7ba3dce2b07ce615f6ce56f5b7c03c074. 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/USUYG1073688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5c7f7fdf3142cb7cb2bdf78b324effd6e8c5c466af5c683507d9b55761bcd87. 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/USUYG1073689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd90df410ef136cb2a4693259e87c859a9468ff3957a579c71b5244a4409f047. 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/USUYG1073690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1659bdee60a86f0fb7ac4fc9276b944e5de3e67951328dfcd51d1a92a2606dae. 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/USUYG1129215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c627f8e9d5912e0660952b77fb555667bb1b66a189c044783d3537a0e26a7b9. 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/USUYG1129217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a54269674cc2821f2bbf0b31475e06a4e0a3681253d617ec79e79fd769fb22. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1129218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25983802883b93a71782d75a11eb8e04d7e960f01213924f42f8943b01bc3799. 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/USUYG1129220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197a23e21e996c385f88c7ac6fb138682176553a201af8bcd882c326c0866ef9. 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/USUYG1129221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b251586efd872e552a544562b1694861da10a62d36b43351c8467719683975f. 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/USUYG1129224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6823661cbb4f72fcd3fb042abf421afc83dab4343560ac0a1adac4c0d9a5031. 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/USUYG1129226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc860d26c0c4a0d88ae599033814d4bbf9d58c063dea996c41fbf04c940afc5. 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/USUYG1129216.
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 0x1f20da3256b893df706f52f2d10b3e1851c148944e29b03cbc4684754954d5f9. Chain 2 (Bitcoin): anchored in block 960339 (2026-07-31T03:13:37Z), 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/USUYG1129219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18adf66a48f941ae21bfbfc9b695cf124372c9136fc9915256e439a63b018bbf. 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/USUYG1129222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1a153479a807d42f4d74c454ebc300c19eb709d99fec91741e97cabfb6fd26. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/USUYG1129223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5fd52c918b57de8283d000f86fc986cf055102ec6e47158370274a95ea355fd. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USUYG1129225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c1d5482215a2ce48c210dc0a62cb9a3b60ca3bb9d0aac9fb0127c8270ac6f8. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USUYG1129227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac45d6285a95a540de14289e7439e7cf509bc1c13b421867d105fff1f68ecf3. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USUYG1129228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe652c24656bbee7934720cfda96d339372a7f2a4d068e1ca377899df29f3fa6e. 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/USUYG1053993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b0e92bd91d5d1d664e20c73218f6a5d0d7ef754763c270174cd56cb788f181b. 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/USUYG1053995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53daafd5183c81f2c783b8c9586cc6269592fd06131398ba539ac26b848553ba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USUYG1053999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2eb4281e60d956e694e1a52a5edd6c64c986951958fb620911416f9437aaa1e. 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/USUYG1054005.
True 2 da Game: Chopstick, Vol. 1 (Slowed & Chopped)
Somebody Lied (feat. C Stone, Lil Keke & Slim Thug)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1fe3f038e477655399bdd609b824604545efabdf31d330114001c622947b755. 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/USUYG1128891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b3fb8cd47172e9a389dd9c00c2632921f0e4483eef0620faec18867411b849. 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/USUYG1128893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df5f29cd56078eb241180eac98d41666f47e2a8f5e6409894f969ed729f2048. 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/USUYG1128896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5d4d1462625d3bd23506d90e48a187ba06adb05b2c1b1c077a1789fd99fefe4. 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/USUYG1128901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c094dcae688def78ec136dd5a711f79c30161cb49f273ae4587256e7701791. 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/USUYG1128902.
Waves G Mix (feat. Pyrexx & Macc Marley)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x229a04cca5f0feaf95e58a45ab51db566b851c8ee4e464a76edd339f990ac3d7. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/TCACM1638179.
Feels so Good (feat. Quentin Brown & C.Stone)