Első Emelet (Hungarian: "First Floor") are a Hungarian pop band formed in Budapest in 1982 by former members of two progressive rock bands: Solaris and Lobogó. Their music video for "Állj, Vagy Lövök!
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 0x68272c674a11792998e3688f86e57c65c7129b92f1fba51bb87941b6706774fa. 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/9abf98e5-c281-4535-9ec2-d8d1d0ae817e.json and https://artists.proofprofile.net/proofs/artist/9abf98e5-c281-4535-9ec2-d8d1d0ae817e.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 0xfff35e50893d5fbca5c880d6d741d22225d2f681b3d0f33898e95127e7a707c6. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/HUA253725208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81dce9472158c1a46d6e7ce221cc2d9613ce45350d3d995a7c0dc578b7ac338. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/HUA253725212.
Best of Első Emelet - A film forog tovább …
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c4de4d8fe8930103eb62691be4c5ae447e13837d77cb39e4fae93b264e8b8e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HUA253787802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12abd39e4c9a57ce44b249fb507805f90aee2d1b4b8050204a67a76b050df571. 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/HUA253787803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d28de500fbf0f1ab75e0d6b56820c33b4b1ae11929ad8fa1b15480c7a92ae34. 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/HUA253787805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246b77151f101d7c42b6d6f9e16ff9817b2fba72c71623e26dadba7c13ac4f5f. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/HUA253787806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d33f9f9c1444c8b2ffdce11bbe067ec0d6d86892b4a2e0729ad29dc966ff7d7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:37:21Z), 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/HUA253787808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe3af1b14a1430addca83467e64586ab1e9fe2a597d193f69a5a573ad33d814. 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/HUA253787816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb745dad05f523223415ab5a321250f07c767a3046c46a028766622cd31665d4d. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/HUA253703608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7056b9f9b30bd0bac0cf9185cb1dbfb217aff96cda517bcd69edfbe6f6aa930f. 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/HUA253703610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c2fe21aa5859b41e1dd776b53340358e37ac1aec82753b0a25c7eea76265d3. 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/HUA251787407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d48d61b95326bbfb25fff447f66137a9b5ba97a75d23b5c3a11e525436bdb2. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/HUA251787409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142c15dce606df059716222efb5ab504a88eb134ce5d98d167f5d8ba0eb8355e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/HUA253731202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5fffd8ceb4fdd1d1fe9581ac70f52a868cfc49d47a6e41fb689116e8b665e1c. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/HUA253731211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36020cc00bb75261540eb43dd7da4c9ed401f52277e5693972ddb1c70086a94e. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/HUA612200254.
Olyan ő (Bagossy Brothers Company Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe3af1b14a1430addca83467e64586ab1e9fe2a597d193f69a5a573ad33d814. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/HUA253787816.