Tilahun Gessesse (; 27 September 1940 – 19 April 2009) was an Ethiopian singer regarded as one of the most popular Ethiopian artists of the 20th century. Noted by his tenor voice, he was nicknamed "Th
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 0xd822e353828469cce0fb8c2162882312016927b3f4f19e1ea36b109a830b271d. 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/601214ac-0859-4278-ace0-8bd0eb0966a9.json and https://artists.proofprofile.net/proofs/artist/601214ac-0859-4278-ace0-8bd0eb0966a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ethiopian Contemporary Music (Greatest Hits)
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 0x826680c68b5c5964c6ad113468d624bf5892ec1ff6acc89b1d637bd59cf0640a. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/USCGJ1232877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a2af147e5ea91c64beeb5a5a5fb0611a48b9012f0d4c8b9e449fb95296d439. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USCGJ1232878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x911b59bf6c4fe42b97cbb297e83754943f9da74936885c20cb850d488dee60be. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USCGJ1232880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae6ec6b5fae9f64f147018f1a8a34fdd44de219887e6ae28f76d558874046d8. 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/USCGJ1232881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d1266c53f83da32d376c5b6bdbb6368f63a82f82ed1029758d5eda66ca09fb. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:47:33Z), 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/USCGJ1232882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b08a5853d0e33a305cce556a02cc92880bfe511bfe5075a593e4dd57f4264b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USCGJ1232883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be6c6d57df44564b650c45b78e03a29e55a36e8ec4c2eaf1aa6b4ab4dfb4f16. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCGJ1232884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b627162b945b0779212bda3dee018764423f7af81fb405a4bcf014619e79eaa. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:00Z), 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/USCGJ1232885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc600730e7edc910165cafd3227d351726b15a848144b7bbfced7bb44a544fec8. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USCGJ1232886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e455cd5ca542bbb1508bbef5e17bd3a7962f17ce71cf8134e84257ed1d5526. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:49:26Z), 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/USCGJ1232887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9e954db5dce3113ea5c058bdc534d78f1877c2d52447f87a8946c546a71272. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWFP2320911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc7f58d26b346a5a885fe71910aa94faf47d834ece6571217c4e6bf85783930. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZWFP2322292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb2f5e6d0c868ee52a07df7b290be9ed68dd29967893714d77c5ae34b203652. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZMEP2426670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec636554fc0f02b73bb65e58be520e02ae1018b9dbba536a9d522bb4a379a904. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:26:06Z), 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/QZMEP2448919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf7f0916a7fdc68a99e62e8d93fcd90610de2e33639b09750d1ad550e6a67d6. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWR2446571.
Ernesto Chahoud Presents Taitu – Soul-Fuelled Stompers from 1960s – 1970s Ethiopia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50d509bc9cd1183ea08af305f1ee73e69575166df1bd2cb88ad18594add4759e. 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/GBEQT1700171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05911b2c02350c00c16e7d68f0f6d0acef2bf9fe6cf86e54d5adc76a1ecef56. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBEQT1700179.