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 0x29db9f050cc8dddd771b7a3912f388ff1dfb57b8c090d78bca901f0a9895ce84. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4203c77-3e3e-4b74-802e-52a5b28cf1c9.json and https://artists.proofprofile.net/proofs/artist/c4203c77-3e3e-4b74-802e-52a5b28cf1c9.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 0xd04bfe8a50940a51bc1337596c0fe2411878b32f2b01446822fcf339a9a67e01. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:14:40Z), 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/QZAKB2446845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a9c134a56ea7f9c9faae6d2cf47df134b976ce6d11e7ee8f45f1818155314c. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/QZAKB2446857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a9f511603fae23c315116872d7d532875ea5e960db8eef05eb8184cf56c955. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX4R52409936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c84ce1cadb4b57e6fa02710da45331d52213c8bb9827340e464f19ac75884d. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZLBC2424818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0dacf0051a71dc52df767d0647466c6d29711b4f6da1a10213b7b7e54d7a70. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/SE57V2409758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ff26685aa2c55a8718288b1f28346aaeb1155029164460a2fc3305a36b39128. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/SE57V2410022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec342a632fd30b4a9791dc90e95a3b227c86fff143889d11d2537de22fc9ccaf. 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/SE57V2410129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30beaa72425031e0cb522f8ea110add75d275137c19c593729654cb1c91d1d3. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:59:45Z), 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/SE57V2410336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bab1c34aced4020433ab0e6a643fc3f421aad3bbfb764ebe4243a0df9b83eb. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GX89G2513519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79c33a9dc21a6c0b1aa6b901d4d03573427e9f371e62e9ac17ec870d5729eea. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:57:16Z), 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/GX89G2573180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0547a896ffc56399a9e5626be82ca1f83e54c189ffa755af5bf67f15056a058. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/GX8LD2585144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4e388bb6851afd8a9039d821aa45bbe026f5486bf526ccf6a212f769922bf2. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GX8LD2566484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de84b60be12046df8bbfc24606faf2ca5d2aaa7fa95ce3f609a904c38937282. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GX8LD2570540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd828f5d40b785690765e94fab90e98232b9a41282ec736ab87d7569c6e1cd3. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GX8LD2540506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8edc2456d7c1f111c89011bf56725c7c0f6dd1a96f5ba249ba8490cef15c5d7. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GX8LD2577494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef67aa9519721db25080618875192e57a78082f85058b4fcbeb733e4ee19e7b4. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:41:48Z), 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/GX8LD2568167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff5a59ccfc462fcdbb3833c90a1db9c985d2598f696264f00b3ad546ca949d1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GX8LD2528391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9d9ffb6c3ea6d040f980d4349a31274f2df2f665216649278805553f23e574. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GX8LE2519742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ace634826622e17bee69a206d2c322ba39f17beca15086559bdb1ead1bc5e3f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX8LE2575741.
BUSSDOWN (feat. WESTSIDE BOOGIE, Kuniva & Rah Digga)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4237d278cd69b633b51a14c76c44aede2e4210beb4e1df60a8ae2583249d2700. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/GX8LE2503726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb58941aa6a98f16dbbd4a016bc346737746bd63cfce6404e9185f2ecd19b1d. 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/GX8LE2537788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa78bb1c72dc727fec03afef26a3d24a5e1b0cb3efbbb916298fe2b612517791d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GX8LE2577434.
Anti (feat. Xzibit, Styles P & Stunna 4 Vegas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc22432c905d041030ed98f939473a3bab13f437412e0c96912ef5aed6561330. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:46:52Z), 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/GXBDS2582660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22283b2069bd02006a4649b945f7d6435668320c3283d55420675dc6da26b7e6. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GXBDS2531248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45c83f2c9ef8071341536a25a5f092941cfc860a1b5f13f6dc0683ae54b8818. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GXBDS2596456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55bc7b991c5fee86c190d9191e606dac689586ec1c3058a8df0220df99487ee. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GXBDS2557196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc7b4b2c261d055bd35a77251231cd92c75e55b4e2f2c3bcb23351440a71f8f. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/GXBDS2548376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab34dfa99863335a1b4e406025f9db022fa19f0bfaa4f90ea2e9739d0c8e21f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GXBDS2528450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634f3dc980529d926eecab4d8ddb342648b38f262d300b1f669965cebcdf11a6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GX5MY2547148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfda32b5978c6c1a74df338b38d7f403baaed73818dc721db9dc27b9d02159e40. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GX5MY2525789.