Mantronix was an influential 1980s hip hop and electro funk music group from New York City. The band was formed by DJ Kurtis Mantronik (Kurtis el Khaleel) and rapper MC Tee (Touré Embden). The group i
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 0x6b9cfb8dc7dd57072c7d38da3b8d89f1f7bb93e467ddc92c973d825942891aad. 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/1de022ec-9825-4d1f-a783-81d14ff94a1b.json and https://artists.proofprofile.net/proofs/artist/1de022ec-9825-4d1f-a783-81d14ff94a1b.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 0x80129b7adf53c4ec075161901edd36a857e827f41c685e61fd2da68175eb4e2e. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/USWR30910612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57fbedde8f4d9566409724af797f953d9e8d091315d95dfd4e035f5a4bd371d2. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:34:35Z), 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/USWR30910613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c55c1d51394624fefbdab86dda32b2167ebdae14448c58575a4bd627c05d55. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/USWR31651301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40bbc0a5696cfcce3d31f61e1ad59741e8124d76c1842199aa8ece66daaecae5. 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/USWR31651302.
Join Me Please... (Home Boys - Make Some Noise)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe81ffcaecaa690f80705d5fa62dbe022249706a2f8816265c126b84d5f04b5. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:52:26Z), 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/USCA28800886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458aa8dd2ab2abd89f22315929e5db6dc45e922697270298af47d19d7d05be65. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USCA28800891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd703efb8bde49dc3e3314c4612e979a4fa223fa76a8f7b64e3f767746db177c3. 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/USCA29001450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37f2536378643db7c014e5c505356a1feb65034743c6e64f97c5890666c3d950. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCA29001452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae2a7b714632994969255121e23be05aefd4770b61001d66bad8fd80f97f1d9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCA28701217.
Take Your Time - Club/Dub; Feat. Wondress
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ce321923cdc30183261c1c4e456a0507604f08c011890995eb53ce7dda3ad2. 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/USCA29001465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee75c16f78f9fb080d7b6f3ffbeee78591653a351141da0c988aac16f802e99. 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/USWR30753191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9f812293cb2718d834a3565524079f1347aa8f97241fbc0c192dc120754f57. 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/USWR30753195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3161c188f680111fb720fc5c447ee7031cd902bbcbf1a94d2306903ba266cc8f. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/USWR30753196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304688f692a7071c8636f86863d28f125d7273b82d06c61befc803a7ad851a4d. 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/USWR30753200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbd3bd38c640add17d7376a902c90ea4213bbbbe4030d790cf4900cb66f8de9. 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/USWR30753203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec010d021a19a2590d4907689a084d3525156108636d596f65269abf72bb5db5. 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/USWR30753206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b5033401ae62e1ff415897d2263c5b3ac1b96edc65f2bbe183e4fc56e78e892. 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/USWR30753207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97da48cbf4974faf8bf836f99d25a97281b468f646e932c0e06538191f33cb08. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/USWR31653190.
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 0x51b1b4a3dc9e492413d1cfaeae6db71d7b3b43b197d2a1fc0328a473cf704439. 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/USWR30753192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2650e1779d7715d60511c15ce526c5bba22e80f3c92a060deb15772ceeca10f8. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USWR30753193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2403d229e257bad36bba9e33059a58dd56dd7b313767b7f91a12f9c3ce9a116f. 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/USWR30753194.
Listen to the Bass of Get Stupid Fresh, Pt. II
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x021ac031ebb93c8861926fbcb33b978482090053fe366e5a9251bba7a3f94d18. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USWR30753197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe76370feb290b8e4c08b03ec8aace97b49812a81ca9736d537a6374816667e9. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USWR30753198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86551ac5db821dc6ad41299fd28d5ed185c48d8ec6ff54478ea85a9beb3080b5. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USWR30753199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba5cad3a87587b1c34220a010f0b3a8c38f43c380ed6cc4b4c578a48aac4aa4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USWR30753201.
Needle to the Groove (Alternate Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2e173007faf4b5cbe644c9f52660c1a6a54f1ea28a0ed5b9175445859d99f2. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USWR30753205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9863b21424744ead0b3b79dd136895a08123609ad3867b0634ae556ff95ea9d. 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/USWR30753212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc36e0dd0192b1b0f203dc555382e09ee5f0200e8b59e3522bebe7e0b88bbb1b5. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/TCAIU2486157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7a60e4e44b1b1624827bc70857cc01b37b2d108ba72535f4b8d29bd03e9d9c1. 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/TCAIW2444634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf396d9acd7b64178a6b2be05edc4977f2c00cde1984e08b6baf5b97908c24ed9. 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/QMFMF2430084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x950c29d35a03a87e17fda0482d273e4327f3df1342b58799053eabba98a76978. 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/QM4TW2525863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0a3e92e03ca8529dd4a342806ae82087efd49df0cdb34cdc7f93626835ef19. 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/USCA29000227.