Tegene Afework (Amharic: ተገኔ አፈወርቅ; 16 August 1978 – 27 September 2022), known professionally as Madingo Afework (Amharic: ማዲንጎ አፈወርቅ), was an Ethiopian singer. Born in Gondar, he moved to military
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 0x04d12e3e5b202c8d7c7f2265e82ed9659c387a02e3517689076441bfa083c281. 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/fdbfd622-ab1e-4017-9a3c-8aa812661f26.json and https://artists.proofprofile.net/proofs/artist/fdbfd622-ab1e-4017-9a3c-8aa812661f26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Aydergem ( Ethiopian Contemporary Music)
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 0x1965df5b3d55e8814886e8d8d4e8ae35a6ea2c7e2434a928e75f10de3efbc909. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM21211901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ae0201f46b720d4d914d42ca9100591cbabb53bacee7440d40a86872228549. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/USHM21211905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb723bd2f6f576dad866edab065206cefaa0cb2f380659766949cb2fc5b875f01. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USHM21211906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f6ab3c4805b68356cbbe893fc4fbf4ff83e8ad761d2d0a104adb4362e51f7f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM21211909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73a7f8b0964383fde2b8ce5720b9da224914a667167b90d55d734bd20a76eddc. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM21211910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2faa54a88ebacee9bf989e0026febb426706bdde37a5a020a8942c3d48959614. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QMAAK1500560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887f57ad49140a6a6742457248bf0edd5416cc60a2fc0c4de01c45a9673cf702. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QMAAK1500562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc8554c3662d46cd92054576f40aa7ba48c314bf39ff172c074463f5a182eb1. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QMAAK1500563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5996e8293c79b1d753be282d95a92ad230027dbcc61c12b6b28a5cdd050bd638. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/QMAAK1500564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x605b281ae074517288679f1cdd7c46e9862b6d4b74f0a5ffb48367df04907cac. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QMAAK1500565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0bcb8576846cb09bf43838d5a2e76eb378576d4cfd15b929f173eadcd9d4429. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QMAAK1500569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75481b1a33739ca71ef64e7d465cc414f72b749dfa93a9eafb5037ede6add1ac. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMAAK1500570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e24f750f1509d786c39beeb53348a283acf4224dc5a101da885f033b80bc1dd. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:48:14Z), 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/QMAAK1500571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e32fe1af257faa1e1de5b2daadb6630466259f0f90130fe2141e81201f4a76f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QMAAK1500572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5a2d63a1c9a3ca877ac611fd7980dd180450059199fc602a05b26a0b4c0c3c. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:45:34Z), 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/TCAIH2449259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5416204309b78f9620ecaea56721749d539a2d9e9ad73c1343377b26795004dc. 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/USHM81115711.