Tewodros Assefa (Amharic: ቴዎድሮስ አሰፋ), known professionally Teddy Yo, is an Ethiopian rapper regarded as the greatest rapper in Ethiopian hip hop music culture. His single "Gurage Tone", which was rele
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 0xc0996eeefc8dd15e6b5cb16c8a0adfd6264a12068d7103ce2f15717178c57bf2. 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/03ad7c10-253c-45d1-a64f-920f82564392.json and https://artists.proofprofile.net/proofs/artist/03ad7c10-253c-45d1-a64f-920f82564392.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 0xba58735041fa660974b84dccf378218153a26bc0211e1103b70a913ef7f838c8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEBL61361963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3f46b22c7232e782521e75d6c864d590a333e7ec2cdf9f74bc858396e7b146e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/DEBL61361964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc82a59ead51bbfae6d580dcf21fc5214c7977a78af71628cc057207d02ee39a6. 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/DEBL61361965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12dd2abcdb1e5c02654eff04598119542e4961d95e2ef655b7e5c350f61ef392. 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/USCGJ1830390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba6c897c0f63f45a6e3169f961ff25b8754d708c713b5b8e01c0aa97d17fab4. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/USCGJ1830391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1c223d1d0764eabbd16e47724bf7acca0131a0babebfa5fd2f897b37f5c3ed. 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/USCGJ1830393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4ba0ec89ff078e5fbf07a53cdb5d2d4530918ef50e4d00f7cbede3f4ba4854b. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/USCGJ1830396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f0a1337e8abb846cc6500ec072a97ea85b381495edc8cea04219b67055c755. 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/TCAGN2238989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7870656ac2b4ee36189b48e5a1a86b1961cd5ecf765faeb3ccba824679a0b7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZPYN2460611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96df145e28939117ad9f2f35c2068a7ed2fe46413e8d061621b96c6f776461cc. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZPYN2460616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11ac5b4edf5f37e5551c1322cbcc82d0781c8efa1a80fd04f82b626a4fd14c7. 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/QZPYN2460618.