Stefan Hantel (born 2 March 1968), better known by his stage name Shantel, is a German DJ and producer based in Frankfurt. He is known for his work with Romani brass orchestras, DJing and remixing tra
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 0x34a9062841e2b662cb7162da1f04badda1b8e83c42565ad9bb6f22ee918ae8ca. 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/38ca6a49-0072-4ecc-91b3-47e72b62131f.json and https://artists.proofprofile.net/proofs/artist/38ca6a49-0072-4ecc-91b3-47e72b62131f.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 0xef35c52db9f62bf634e4947d7dd6bdd6c09fea126ef3fa3c14549f849c2f39ea. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/TCACU1620163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50d9079668df9c8862afcf6a9616df4f7ec9d4b9c31fec9fe5e37d8bccf2bdb. 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/TCACU1620165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6369128a6b3bd36038f683397db92115117a15bf2f3be3b332a4f92d013b004d. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T13:27:11Z), 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/TCACU1620168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b74ce89a88889a6e9d34e9562365ab57af7cc060d632e03dd9cc16f36fd5f7. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCADS1817544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36538b39a07d325490423ad9f04ea476566d59cd753b6e5a7078da28ceb63841. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PLC691900161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd30022fb049aec7553e2647702ab22ce41a19dd13162cd749672e7654c610d18. 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/PLC692100036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8fd13d402ee456e625d0325addeff26dafd75d288aabd72607e2ed631dc765. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/PLC692100065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204094ba0019caf868df0789bc3125377054e22ad828b1981affb2c59b984e1b. 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/PLC692100066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb2ce70aef4cc8087db6a18a36d6cf2b1be47a77ac519308204d8de920f1dbb0. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/PLC692200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58a13111eda6a6d2f0ce263c11ee899fe911bb08acf02b1b65c5fdaa8f8fe4a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/PLC692300090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c62f79e5ba1930d182e2578c2fe7252ba251840a6b564c2540790dde11a98ae. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/PLR862400244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c62f79e5ba1930d182e2578c2fe7252ba251840a6b564c2540790dde11a98ae. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/PLR862400244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67791166f31e5bf432aef6a7a5566c7be7aa80b1bd5bb00495a74fe15ce72251. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/PLR862400318.