Alex Diehl (born 26 November 1987 in Traunstein) is a German singer and songwriter. He was selected as one of ten artists to compete in the German qualifiers for the Eurovision Song Contest 2016. Germ
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 0x8c8f72a8bd6ec542ff959e79b834f4321df67070bf7c3ddda96fe1472a208e97. 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/50ade8a0-518f-44d0-90f7-fa26f07c1e4f.json and https://artists.proofprofile.net/proofs/artist/50ade8a0-518f-44d0-90f7-fa26f07c1e4f.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 0xa5a9d7b78df548203bce84b6a6a76ccca6c273ea28cbe7566b0a1a478e4a2e0b. 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/DEA811400037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ed54d476d10805d691190c49217cbacfe5be6349c07dd744218b8d2f8acf67. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/DEA811400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa0d5055f63eabadbaea62acebf43c9af34b071256cb19987062a3e16e3caa7. 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/DEA811400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe60f9b0dd863b12994af0de03fddadf34d865827956226ea1905d7461df3f458. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DEUM71600149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29cc744d9d4781eac7b0af926dec9b0d48036dcf32f3f94c7d71abefbb73c3f. Chain 2 (Bitcoin): anchored in block 958863 (2026-07-20T10:27:46Z), 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/DEUM71600475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb92fbc16d541a9502125dfea1321226d6ad043870e2615f8f86079a0578d293d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEUM71600480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28a81dca94437bc21475fcf4f27684196b4e8d876326c306a43756659309c608. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/DEUM71600479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8255e95dd614c5c6fd053c5ce658716d8205e8f80eee72010c90a98314679410. 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/DEYK41900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e42d772631f1cafe158eb1bd7cfc31aac2351889c4c0a837119a75517c99ba. 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/DEYK41900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa2b70452fd22ab07f1d31b33e4056ad6e3dcbe24bddfe307988852c6ad28ca. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DEYK41900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d01d82cc334506ae29b882322a7c611a8909975e01f0a58616a327d6faa7dfe. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/DEYK42100001.
Die Geschichten, die ich nie erzählen wollte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d61ebc6a1f8260c95230e6c94a07b63e38600c0866ede1737969baeb8bdc6a. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/DEYK42300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126662441e183514f112cf571fcf241cc1015aa1acf1ef96284d2a45bf8bbe97. 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/DEYK42300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53001ca4ec91dd07e60ddb3da9fda8829d106f9ad9446354055ef3971e4ac6ec. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T08:32:29Z), 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/DEYK42300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceaba59bf525a9910959848b24392faf22e748215784b58265ad54d10fa81ce. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEYK42300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4877864b67f8c2bf68f55b13e5c62ebe79f141f5116511814037ee2456ff2d6. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/DEYK42300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda9e862d7cd5186209ae34880c72587f353318d1a60349710e9d17dc79cb065. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEA622000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda9e862d7cd5186209ae34880c72587f353318d1a60349710e9d17dc79cb065. 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/DEA622000238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018137282fa9f201aadbde18534967239445e3827498d3820046cd767232a696. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEA811600552.
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