Level or levels may refer to: Engineering Level (optical instrument), a device used to measure true horizontal or relative heights Spirit level or bubble level, an instrument designed to indicate whe
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 0x4829949acda1deddef57b2b858b30546a2c3f128af7b589de24c694cddad30e0. 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/b665c80a-aef5-4f18-951d-ad2ee77cbadb.json and https://artists.proofprofile.net/proofs/artist/b665c80a-aef5-4f18-951d-ad2ee77cbadb.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 0xc2b511533462396c308a5d8b1b6bfc0657dd8292a265435a95335adad73889a5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USCGH1536386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca2d904f51bbdcf94e14703979dd725af711cac8404545ebdaf2956c389fe29. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCGH1536391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a816ee61fa5fe4490dd6b1412bdd700f57a93a17c3542a85c78964a4de52a8. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/USCGH1536398.
Dumb Dick Remix (feat. Mystikal & Mouse On Tha Track)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b87d4cff88b3fc58559504f9af57bbb97e3a4ac3aa5c1792716d93941fabd5. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USHM21728028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74dcdb5a24f6db8a35c924b5e55062b3ed19473260077ce8f469133d7e040c1. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USJ3V1472656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abc15515884492b8f6bfe2f5ec405c9c61f286194ee2f6cbd3ebb01169c9920. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USHM21816891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe650fb8541c37d137d22f72555d159918d94c68a221b13b762b1be9052542c0a. 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/USJ3V1848513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88251bd04ff40d1bfb18a81cbfbfa2a1b636a64dc85b089be269282634553127. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/USJ3V1848529.
Deal or No Deal (Hosted By Kool DJ SupaMike)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54925e017c5de882681d4204c7558dfb119ae4910dddad017b7b118943ed9abb. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/USJ3V1848493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7570cff9a4c5aa15c1d614618719d1328037528fc841ccf17b53e93fcdadc65f. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/USJ3V1848499.
Street Credit 2 The Mixtape - Disorderly Conduct (Hosted By Big Jay & T-Mck)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5bbff87d59abdeb41e592182e18837b2834cddd830e9561d4194479a29385c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USJ3V2006925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15eef31f015574eda87a77df8bf28cbaccdc28e589280b7801bad5f3099bd7e2. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/USJ3V2025124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48d818e2b56343a1fa0f787bd8d283fc533f96aee7853920998d18b357d42fb. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZPLS2027425.
Club Banga King, Vol. 4 (Deluxe Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14fe5666ad2f648695c2b26c71979e9bc9e7600c8cb5baaa80a71e6445e8e763. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USJ3V2037212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e99a400925f4d1026156cf6ee242f5852a95399b43e941cc3f03ae54d57652b. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/QZK6G2256343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f905398ea3e1227c4dbd8ce01c29cdb380372981e51dbf525bd429b62103aa0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZTAY2237572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd870ecd0027b7b62b2c91c21383a1b5d1e9c5e2477360eb31c51173e874c76. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZK6N2357979.
Fiery Blue Moon: Shamelessly Blazing Fun
Sad Flight: Reflection on Life's Struggles
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0db9fa55b322b3871bcba8e9321e7a58a6c1a835cf4e7ed2acbc8238b04f4a. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/QZHN82543105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d6e1a130a9f834c899cb456e3e7f9f56c8ab345e02b7750cdd2fd38cbe52c0. 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/QT3F22527628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4dbf65c282ab509295cd10b6c49b21b3598a3bd661e24d8c5fb740482b55ef. 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/QZES62184667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0c53fefc9fbf7f91e4ebcd248e7a2cb9947423c843c251b17d2af7848ffe6c. 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/QZRP52318875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e271a54acc927ed4aac48647c49bf9739701e54d29ad30e790143a6ff26a645. 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/QZNWR2370118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x066f6981bc656d69d5ab2ebc180e1ee3623f5bdf3909d55156a1799aa1bdecd9. 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/TCABG1288950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3529cacf210c2ef53535906d53134ec511a3f85540f80cb6001fe5441f5831e1. 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/QZK6M2340242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2a59c8543fa539b577913dd7ab1892592369947a82588199f714dd72c10c588. 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/QZK6M2340244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafed6c03e648a5092f0073ddc17a1cc94c61d2a08943e5922a64585b89b83420. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USUYG1160064.