Sipho Gumede (17 April 1952 – 26 July 2004) was a South African jazz musician and composer. Gumede was best known for his bass guitar playing and his own music writing and was one of the founding memb
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 0xbcde0362df0612c48a0aea4f17307ee7938f3e4d89746af8ac98142df1cc0c19. 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/01d98ab5-d996-469b-bacd-60b2aed642b3.json and https://artists.proofprofile.net/proofs/artist/01d98ab5-d996-469b-bacd-60b2aed642b3.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 0x55ff3afb84b83ed1f9f8e22fa38c997ee50b6da975820ebf52ad15838c432bd1. 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/ZAC030100148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1865c56666757701f4e5db66dc3fa94a31fcd086d2e1dada803fe0d0044f73d9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ZAC030000038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc7347c4ab85160ad7199a8a7bf104a1d56db936105d85f6eacf741bb97deaa8. 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/ZAC030000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd6962ff44d5b783c13dc8b4e427919c8b3076f5c2396a5b2777053b0f93f45. 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/ZAC582401342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8543dc97f4a93460751f486c1bf6c97122328da926e3cadac5a1d159140c57. 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/ZAC039800035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a4beba47599213aa92795a788b859f533783f61b55088c1a13e1ce46331f37. 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/ZAC039800036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741d44a8f1fc9b9b55f9dc10049d9b7ac752961958c2b24c0a927df1b1207556. 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/ZAC039800038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f2060427db0f7f1c3c50933b142360665d586a8b5d825baf09de1e8cd13e09. 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/ZAC039800039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094962facd3d83b24de30aa2a27be09390b5e6360e929b6f4cec96d27fc45f48. 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/UKW7F2000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc38789492945155ed9ee3c2dcdffbfc3101bbe5eb5f2c63225c6f0dbd99d42. 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/UKW7F2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x073decb456d4713c1e956c13632a9acee3520b0477e3de7742c1ace234d0b994. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/UKW7F2000013.
Peacocks Today, Feather Dusters Tomorrow (Hip-Hop Mix)
The Best of, Pt. 2 - Gone but Not Forgotten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef264f863a971d6bf89f830b289de7ef537858bb6f107cd0a54d88b243c0dbd8. 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/ZAC030100057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c6c55cdaf9ac8192d3042950b8cc98c5a065bde4e838180489293087eeac204. 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/ZAC030100208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03ffa4b6953ac646738947a7a0281129f99864083c0562568606d2d2b162c4f. 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/USA2P1382046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa252a0e752a202052448b5a46c0215d4b791c354fbc102e1a24dda614947c0cd. 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/USQY51463045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da4ca228ab490e5b55a262d128b1457731e31ab725dcc50f2b7d29eb9185370. 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/ZAC030200112.
Sound Offerings from South Africa, Vol. 2
Grand Masters Collection: Sound Offerings from South Africa
Live at Mega Music Warehouse - 1999-10-02