The Dur-Dur Band ( meaning 'spring' in Somali) was a musical group from Mogadishu, Somalia. The band was formed in the 1980s and was one of the most well-known acts on the Mogadishu disco scene at the
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 0x6dca5334697be69c365e6c46dd08d2a68064a0d07916c8a9689d3b0d4a728571. 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/74a2dd21-35fe-4d6a-9bc4-f172ba7f1be9.json and https://artists.proofprofile.net/proofs/artist/74a2dd21-35fe-4d6a-9bc4-f172ba7f1be9.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 0x303186fa067063cb6b2ac296d27cd6a1f110a1c0cc1d33ea40f9c55d52966bda. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMUGB1360203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501b4777c8a1828cba43684825dc547438fe5bb5b3e665337071d49b39d38f53. 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/QMUGB1360204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a222420deec4380f50179d37c0086d2df9be0f6b249a62711b295e29d05a65c. 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/QMUGB1360205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b0f580a703a1e86ba86278817040446fbf9cc1a699499db633ab771465f3b5. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QMUGB1360208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd458b5357b701009afaa6cddc3d72b4a8242328243a961fa45a36027fb796a69. 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/QMUGB1360209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e34d20b04bba246655f340a7e8760d1288b0fdf0016c947b94ddaeb569bb989. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QMUGB1360210.
Dur Dur of Somalia - Volume 1, Volume 2 & Previously Unreleased Tracks (Analog Africa No. 27)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c9a5fe66b4d58ec4ae26e855ab66c7fd39239d8a2e458f2aca8aec0682fec7e. 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/DENR91887002.
Volume 1, Volume 2 & Previously Unreleased Tracks (Analog Africa No. 27)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ac663076be79fdc8f157e433e6f0155a71daa066863d7f9c946cdefcf0eeb2. 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/DENR91887006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae661987c1135a621982469b05d551c77036c96919f1240184be04601f81b2c. 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/DENR91887003.
Dur Dur of Somalia - Vol. 1, Vol. 2 (Analog Africa No. 27)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d48b5d86156e60af0f4da888d9b3fb3155dc5a96b71bc1606cc0526dddb17b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DENR91887001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ac663076be79fdc8f157e433e6f0155a71daa066863d7f9c946cdefcf0eeb2. 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/DENR91887006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a9561337cb3a5ae7dac901bfa742b20680a010732854552dadedee0d4130a13. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/DENR91887009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aec86e0019d2871a3f6713ffc280524ba20b3284a6a788dd8f403fd6e325c5a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/DENR91887010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e82d68f38baecc495ac6ce5dd03ce07f4cfab381bb9eadf8d27b17dfaef9c44. 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/DECQ12303604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911c4d4a9a4d45d4e0195c2d1a97208c316b5b6dc8943225d1c3e6bb1a687371. 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/GB6LY1601081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c42ccdf33fafeda5d3606127614fc174f51d22251124853fff7909a0c910754. 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/GB6LY1601040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911c4d4a9a4d45d4e0195c2d1a97208c316b5b6dc8943225d1c3e6bb1a687371. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GB6LY1601081.