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 0x8b97037d1ea7f7fcffcbcaca07daeea8ce161fd5c639e1194b306695791db302. 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/f69fe0b4-17b8-452f-b886-93b0703fed9b.json and https://artists.proofprofile.net/proofs/artist/f69fe0b4-17b8-452f-b886-93b0703fed9b.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 0x2aa96d49f1bbe20ec0771f3fa8e4e6d0e1e29c6612e0762c047ad5068b42e9da. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/USCA29000627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d7ebdeb2df20ed244cae5f799ccbb94cf99e6367e20134c7cceb20ce859bc7. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:30:26Z), 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/USCA29000197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996909730789797a04d6211dbe4293a7184f1f600ee76f843729c5b26bbdc08e. 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/USEM30100390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3352dbe1e33eea3fd1348bd3a0725499fa24d72af76da5df13db6a6ea789fc6. 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/USCA29200361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0d45822e6924ab8dd1b0243ad260ab357bffc000a8073c5dca9118ba77a364e. 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/USEM30100279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbefff6269631e252e94ff579d905d4f38f447045a89024752575ace93f97b1e3. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USEM30100389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2435df30ece479d0627b258f8b50d10b25978343df0b9b974e68fa262d898aad. 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/USEM38900111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302baacf8661058f797477587299965f1f8734d14849797b450197663f3bddac. 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/USEM30100251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d1ced93a4a33663ec3b67213356ede224447de80380a0e6e5dc62b942eeba4. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/USEM30100345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb4940ab2940592e1db11ef444f3ca8ac8f5a9054b8dbf1f63ec11a7860682f. 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/USEM30100162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52ba52f993291969d4b50120f4e75a052580e0d98de7ce135911c5bf425889e. 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/USEM30100173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c1da02d2dac6a0c14ec868b6ba0b670a45697437b67795c9723e549c36ae56. 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/USCA29200360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1260dd1b21998f642a381766476de254efd18204763e5cdbc5236fa5a5b7a04. 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/USEM30100324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113769a03e6dab6a1281a85240bba663453dab8315c369b7cb95b0e07d71d6a7. 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/USMC19443037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe884adbc97975928b0c36d012ff0ace2d76b2f8344354334fc8a5f3a44a55830. 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/USMC19443715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00f69510526e8b5cef151092a48c1885d1afb599ca43745063d88f223621748. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USMC19443722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bec21dce4235727d6d71d3bce78d1c93d4fb16c0c7e9ceb12fbfbe63d7ab0df. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/USMC19544595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe544c1cb585a90427e9c58a00104b7480e8e57a58ebc84c88a20ec431d379ca6. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:50Z), 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/USMC19544074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7099a3c597fffcad0ba416831ffdf1a9e2de6c27779da4ef2aeb524d1f0e696. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/USMC19544598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4d15a44d1fca8af31f942b36e6856db02718e55166db4f4c5afc1ad4471705. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/USUM71708685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379937cd2468437e4507abc707278e8f591883381ba50867454dd36169233a9a. 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/USMC19443721.
King Ts Greatest Hits "Strait From Compton"
Still in Business (Pus-Say) [feat. Xzibit, Mr. Silky Slim & Butch Cassidy]
"Strait From Compton" King Ts Greatest Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b8b6300a001f0d03f3d4f42e4a2fe7a3a663972555ff21d9b8552058bbf5305. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/US3DF1500149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b186f44d7e7a9675c19d0cbec5290412b0789c53ad59fcf177bfe8368caf68e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/US3DF1500155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91f9cc9b2e4713c1ddfac6a27622f961719f23439df2c9999001a8739296beb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/SE29W2200602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835fe71a81da052ffd077dc1ab7379859f49369dc5f4ba47366113fe4470e489. 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/SE29W2200606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9914e74d014573ba9a9b22a0de8d6072c0132426da6480270dd2a7abe5254e4f. 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/SE29W2200607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7939d8ff8ca13fa327cd443977f3a4323ebbbf362936853c0be878166907d849. 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/SE29W2200611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0198e1b02c5fde7ce1725f95d0af814721848e592b183e20f2f6ec518218e14c. 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/SE29W2200612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a0d2b44355cb67b1fed0f236dd9b8a6e1c0f1c96de12018078cdc17ff72c32f. 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/SE29W2200616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23d6f6d8ee5172680f1ca90df60a6d167745350649826ef80bf6cee65f9f38b2. 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/SE29W2200621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87e713854f8bf4779f18b0918f5408a1e5752fd4b17bb34677ac5012a63e7b80. 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/SE29W2200622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0903659c53b5d326e1e050ff54be9f136eb0f6e99e11f742d95768538b92de05. 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/USUYG1034831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d3d4b6dc67c9da5387a787d886c05eddb727ceac139adad70c8d2a11c0cdef. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSUB1407104.
Southland Killers (feat. M.C. Ren & King Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1287058aeca7a04299e271fed2581b63c70c36fc37ff775daf71f2e0ce503756. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSM10111840.
Highlife (feat. Kurupt, Baby S & King Tee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44980088e16026c82cf3779e0f48d6ea1730ece05f8a70489395e57cc1fa14d3. 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/USSM10009890.