beFour was a German Eurodance group founded in Cologne. They have had a string of hits stretching from 2007 until 2009. The band's repertoire contains a number of revamped adaptations of well-known so
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 0xffb1c5f5580503c55318bbe42cba52659ea866eb17acdf49a7c663a3de342e62. 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/8f541a9e-9757-48cf-b352-96da35a3c49a.json and https://artists.proofprofile.net/proofs/artist/8f541a9e-9757-48cf-b352-96da35a3c49a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Magic Melody (Exklusive Musicload-Version)
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 0x4a8d3f28447440382c10377119312092551e6f5098232b834756406288f201c6. 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/DEGU30700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24a91436bad0b28917a2dabff7fd5d0fa8b8717f50108fa4aa752ce1a55a01b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:46:16Z), 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/DEGU30700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618f4e4104860122b0053e728de7cbc4efa7d8e244652c8e47075138b19b20f3. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:37:28Z), 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/DEGU30700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd5b2b83abf32d8330fa5be459dd400b20464aea05b7f22ba6ea379421258e94. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DEGU30800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa309b2423d82ff92c1374ad1669bf6efed5816ecea85918b92a9e8b0e91b8d34. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEGU30800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77810bfc44e05f5a84e170c3317c645a78fc30ae799b1d1d4aee01c4e488cf42. 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/DEGU30800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5860758aa67c79b6b4c50aa74df1ab9cf1e10997d169aa766e42fd462b6fbe94. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEGU30800051.