Theodros Mitiku (Amharic: ቴዎድሮስ ምትኩ; died 22 December 2013), also known as Teddy Mitiku, was an Ethiopian musician and saxophonist who was the brother of renowned Ethiopian musician Teshome Mitiku, an
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 0xc59a8ed77319586af8f20d775f7c748c652a7fe1099fa69494a19d99615ddaaa. 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/ebc29a25-24c8-43a8-bd08-81c2cb5ca954.json and https://artists.proofprofile.net/proofs/artist/ebc29a25-24c8-43a8-bd08-81c2cb5ca954.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fdc4e9717e573220c186c7474161b39ca860c20becba013c808e6433f215a0. 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/USX9P0793472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a7e9d8765dc4ec9c32ac4c904c522339f5d6fdd418c1c8bb8d2ea0e36ed27a9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USX9P0793473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb120b84dff0cf24c22e4b1d3421776df8b3e049d680a2202a1635402f548f6. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:30:00Z), 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/USX9P0793474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3182314537298b692c0a6141d57e6f5d0d2b0b104a37e1b20974a2f20c14f481. 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/USX9P0793475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f210658bc1f2b1b8345dcd13b7e2e75a9e81cf73a7bdf34f4932573a2267ad4. 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/USX9P0793477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89467a09f2d4b37b1068ecf01d4aacd1448ebc7d59c7461c63fd42f0341899d2. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/USX9P0793478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d4252e3981849d8e62e2c80c6dce4dd760395ae5bf8e2a2877430dd74494d01. 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/USX9P0793479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb43535cb035284ebcffcdacb3b050f280202281060bb23c6e97aeb37bb638f1a. 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/USX9P0793480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc938b29506719de90c3535c225e88d8ee43ec3423f451ac2b2e5088cd9e6982. 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/USX9P0793481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58761c68864f8a3259265cb81daf6f4a71bdbc26f610ab23baf5bf426972d7e. 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/USHM21658338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd493a111ed0c73cebf9e6447c0c543ef16b976d252278d3c83e49597fd0bde. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/USHM21658339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c97dee79f7b574e75a79586e94e16c6d0cba40e432209bcc4b5fe4f31c26ef. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM21658340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16dc605c4c409d0fcee2e60b645d76cf4c5edcf63c3af38f75b94b91215a4fc3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM21658341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ba48e4caca20aa0694ac75044e9014977b4caea273388beddd0e8ed932d396f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:33:49Z), 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/USHM21658342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e3e95ee86132d336c2b72055e5f03acf741628beba981afd61511cdb1bcf1cf. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USHM21658343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb1af54c70e4d9b28e5ffeaff34e7c5ee81c29256b6456159aa65c64baae992. 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/USHM21658344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ee5a2d030d047b95ac263a4a53ea74b96861098e824d869fca4fe75431fc3f5. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/USHM21658345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba11be9a15e43c6129d0bfd45f7edd48b793cc2cc4ffd79d09e0e7d0d17ca76d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USHM21628384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a07b2ab496b748c2e57c9f1f83971c3bbf922f456b990d2455779516257e96. 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/USHM21628386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc81f71a092352c4782c301f5b65135e9692d90b5c570566eb44e1d8e99ad11. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:03:04Z), 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/USHM21628387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aee1d26137efd4592b717c8a7db9fb79e692ee199b880ec00b785487e58b780. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/USHM21628390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc868a203e3de6d37de4f96424dff45d8474f4a93cc2b4b7df3497b3b57cbac2b. 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/USHM21628392.
The Ethiopian Millennium Collection - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaceb0e80911cf65e16a700987fb0aa39b9f2acf8f124c777637b31d1842e36c2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USX9P0728117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4687f3618df5c0c20be9af39c0622f5ea9bb83a8edb57ba34c8cf4e7b36d3ef. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USX9P0728120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e38a56b5bb9b11ad30ec2e7a5aac68e3facf4da47570acd489438d8356ce913. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USX9P0728114.
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