Trompies is a South African music group formed in 1995 who specialise in kwaito music. The members Spikiri, Mahoota, Donald Duck, Jakarumba & Mjokes grew up together in the Soweto township and agreed
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 0x4729e6f526bad710f209baa1f96857305a867359d23a3323c8edd4e3b11de44f. 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/84a56e45-9864-45b0-9fe5-5326c0843c2b.json and https://artists.proofprofile.net/proofs/artist/84a56e45-9864-45b0-9fe5-5326c0843c2b.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 0xee844bfc14b6ca55c2015cfe4785fc33288157286973a21f9ff1ad6bf294dab3. 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/USA2P1366547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b96ca256ab59ac49ea85c7d2974ec32bb2e488d23ee8c7d536ec29796076ba2. 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/USA2P1366553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd246f026a5c2b47876de54083f2929ba2942e755dfde869e9d9ab972d225d134. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/ZAA642100076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392ebd6576fc2f418a410f2937e475de14af0ef5a09f354b53bf4091ed390d1c. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/ZAA642100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8afef9e20235e09709070e847edb533426daa5cc0cb0dc590d1f2e81c9df9875. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/ZAA642100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfb684c50ffb2871290527b5ad63306d0de933c07002f6be174ccd5d27b8990. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ZAA640801061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1f02ee100af3256b230fee4ed87fee8e61b6668cdcdafb9d263efb8a7eb341. 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/ZAA640801066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9fbaaa170ff3be52f432f04ffd16373b2f5b96a3c484fef7197acfd176a6513. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/ZAA640801067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba09be5dba14e875aa719af8c70625bd5bd113498071572dab82759c35ecb38d. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/ZAA640801070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8b37612ffdea962ea224e083272d4f95e78c08cd9862bd086394834910ee5a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ZAA640801073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf924354731e61431b968fe6fa11edcd6b3eeebb47d91ca10a60d3eedaad0a199. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/ZAA640801077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e85e2590397aea861b5153453ee435a9ab3c6ed1f955408544998960575eb97. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ZAA640801079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cb748d59fca1e1d29579cf349521cd52cca959a847af26ed99aedf474e43794. 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/ZAA640801080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ed611bf49318f59d8b4c0493d165279103ec30615426a04f96c8c25dce8d007. 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/ZAA640801083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39fd2a3e16f9b99d14b0e51057e6474eef89ca4cf913644403a7c2a4c1dde785. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ZAA641000056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f07411af9925a9b5c4b09e9566c94403b8cdec9c729be23567f0eb073e6f30. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/ZAA641000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f945da1b452c2bde9beb04a10cd3d797d17f9bf1b11871f0a66530e3b8cf7ee. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/ZAA641000058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d925cfa9ac65127c12732212a44090c9eea6922122be569925befba740671c. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/ZAA641000059.
Magasman (DJ Stokie & Loxion Deep Remix)
Sound Offerings from South Africa, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x269783e430d8393c13c8e925f85b01e7a673382963246e54bbcdb690848dc7e1. 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/USA2P1366543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1615efa4cc488d118564ee3157019180c618cc54ce3dae4c6dd5e2c318b49c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/ZAA641400248.