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 0xc8c624fa228da77e52cf120545fa74d0bded4b3671a011344d9edc3aac3a9763. 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/14769b7e-33aa-4d1a-a27d-b5711716e945.json and https://artists.proofprofile.net/proofs/artist/14769b7e-33aa-4d1a-a27d-b5711716e945.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wahre Liebe ist so zart wie eine Rose - Silvio SAMONI
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 0x9362bfdfbec2587e83026e3279e4905835c371863eeaee7e5129c9871795d28e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ATG741007702.
Und wenn du mich heut morgen küsst mon cherie - Radio Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380bd5ee28b4e507eed72bb9a9a67a47e23a7a2c0f157b56565b3952648c4eb4. 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/ATG741007708.
Schenkst Du mir Deine Liebe - Silvio SAMONI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ca9d393546092159775dfe2439778fe7017b08157c4a410adc74c61c886b64. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T21:24:46Z), 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/ATG741414002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380ccc9321a948826cde081588029207e32ac905e86bca8f0093dc5e22f408a2. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/ATM051508006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18311458594b447dddb2ae63ac89d9f8d80416971efc1fc66bad0932787c599. 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/ATM051508007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cc56bdc20a543d3904f027d26fc7413d6ee3eb37423d823bbb3ea84aa4da86. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/ATG741514804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba28f7c0a7c1787991e3587c8a8dc14dc958e8bba705c685b1a67fbad50050f. 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/ATM051508013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb771f8d21d95c19c0eaf1d487e309cf430a480ff9a6e582b104936d411dedf. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/ATG741514803.
... singt die schönsten Weihnachtslieder
Tu sei tutto per me - Du bist alles für mich
Tanz nochmal Bella Marie - Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c2301d1ecb07a2c30062bca2a88933c9799235afe2fc8c23b740eedb9eddd2. 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/ATG741616803.
Tu sei tutto per me - Du bist alles für mich - Radio Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcba2f982bc350abb46fce8b3dacd229854829fd34ace167839d6dc93295f0567. 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/ATG741616806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d2d9022f8454adbbff89ed5f8a8e8d96198c67d3a1636a5b612ba34c3c08f2. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/ATG741616808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f1b18327c9571806706eb7f199b6fdf8c9c40801a4f36ba8da9dfc42d6104f. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ATM052200411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5e353c56e05669b94f276df8a9e8616f4c974dc62c3b985f4678f8ce3eb8dca. 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/ATM052200398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccedf48b5197c5fe53640668ad5713e9ea0688d5cb34edb701649f69e98fcc7e. 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/ATM052200405.