Heaven Street Seven (also known as HS7) was a Hungarian alternative rock band founded in 1995 by Krisztián Szűcs, Róbert Németh and Gyula Orbán. Later that year Gábor Balczer joined the band. History
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 0xe4a4e5dc5d47b39566bd3dc703a1d503470e9f332d6724aae7c3a62fdb3970ff. 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/867a915e-fde2-4cf1-9fc3-8c6b37bc9ed0.json and https://artists.proofprofile.net/proofs/artist/867a915e-fde2-4cf1-9fc3-8c6b37bc9ed0.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 0x759fb2af6cbb894e558b24bff5a9e244df55198e21c60341dfbee632c256b68a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HUMAG2000122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a023132609d98dabed222f134800cb51f0ccddd1f704fe8c54272621db8084. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/HUMAG2000123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11957137438497b4d6323ce8a957d9d24be8f61f337c16bd9b6926b54006b964. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/HUMAG2000125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a75e3c1cb2cdba06d6c307f7d08f86919c0600b4f544267da470b447a51ef6. Chain 2 (Bitcoin): anchored in block 957564 (2026-07-11T12:19:47Z), 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/HUMAG2002047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaf8805359abb29d97f8aa7c5e435b9c097b9fdc05bfbc982973dedf01189a30. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:43:36Z), 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/HUMAG2006077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fbad83200b886fbbe5243b1e40369ec63341d462b6bd05e2437a1e72f3c45cd. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/HUMAG2006081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c83048faa48983446c54332f03bde0a3b5da2641fdeda5081d3ad4626c8b50. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:24:21Z), 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/HUMAG2008301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef055e4efe02af36e06f5973de6fd9ccaed10dd17fb2325cc664da2bfdda13e5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/HUMAG2008305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ae96e205afffe41466fa71d06fa6a3dfc1ab82681abdd6d2ec138d4e47b5d7. 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/HUMAG2010214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6b7f93555429309dfa6f30fc191b50600acc1d8395220edf49affd320ab78e. 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/HUA761100175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e65ed1faafb77b3774495c1e5df0bcf29e0b56a84059af24a18172c620e97e. 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/HUA761100179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7c4f93778892cf4c051cac5b3d2fc1b4c2a6669da9a131232dc1c79b677f3b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/HUA761100180.
Eszembe Jutottál (Főhajtás Cseh Tamás Előtt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe41bd6b0d0c4a1724f30ccf9754ac4d47473c090f982e278adcd1c27afe66bda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HUB371200250.