Giorgos Zampetas (also Zambetas; ; 25 January 1925 – 10 March 1992) was a Greek bouzouki musician. He was born in Athens, where he also died, but his origins were from the island of Kythnos. Early ye
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 0x7a1819170442ae8f0fce035a4860250961bc6b72f64413714576533720e0869c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94acf760-8970-4ceb-bfd8-f0bb7393d499.json and https://artists.proofprofile.net/proofs/artist/94acf760-8970-4ceb-bfd8-f0bb7393d499.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 0xd5810f1e60f2bf7cfadef419db0bf121d8224a373da2098104c932e151963c55. Chain 2 (Bitcoin): anchored in block 958658 (2026-07-19T04:09:09Z), 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/GRUN10400485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a37a4999fa80988aa7e6d578a5c9f067f42a85a1468784fde270abbcf5e9b25. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GRUN10400452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b584d958bc7d9ee52867e448a90cd41fbbf36ff4e4351c4c16ed929a0807ee8. 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/GRUN10400449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814b825cbbff34d1c78727959d338d9cc9d711c38f26d6c3d4af2e0f47a6625a. 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/GRUN10400446.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2615b1d87a7c81204a6cf338cc9af722e75d8de381028172a8c50cef2f7b9be. 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/GRCB11400846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a120e9ae968b607cda0570b25b9f1b4928e81294ee3ab750ba9070ba841ee15. 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/GRUN10400474.
100% Giorgos Zampetas / The Golden Bouzouki
Come Dance Sirtaki With Giorgos Zampetas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62c950ea42f77e68e9765d252a09e3188ec46a9ff04d3837b188f6d81807e68. 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/GRER10000060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb758e05be13ce3454a291403af33a5de2dae77433825bce88fd4ee03da514431. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T16:26:18Z), 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/GRER10000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16aca44b1c6d897f296abbb6cb314bec3b74dc76d198a0903ecacf3fd2dd8b7. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:02:57Z), 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/GRER10000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf18966f2cdbff2ab2230f7cee7a6da55d2bd37db80bbe17743eff7b578af5a3c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GRER10000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf89e54a9ec8404cb593b2aa9412bfa647177249d01fdc738d89993c291ed9bb9. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:56:39Z), 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/GRER10000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27de9f140ac829867303941f75526937c65236e5ea0cfdadb6bc411944a14f54. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:30:46Z), 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/QMFMF1558157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa60bf8b967e9215d8fa356ac4ebd37dbda63803835329d60e9a1e81d167b6d76. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:50:37Z), 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/GRL017300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517b9cd710878a8d33636e71e6478008e4b3755a221a9b0690fb8c4a59b2b488. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:46:46Z), 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/GRL017300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150194e695a51a79626cb258e8d86176fd73e9c7ca4131082042ff9b370be30d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GRLE10901445.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c63bf3c5945d2cac4d0d47263439252ecc3d11a8b33e3b8fb8a92f625ff8cab. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GRL010600017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4cf45f2789b50ece3073ac1b6db3f9c410688d1570163d354dfd25994f67f75. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GRLE10800484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c68002fe41fb8348ffe327945adffcea90076ff595fcd02395f6aa88d09522. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GRM010801438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c507e1035783fc45d192eb16c438326f760a2dae4c443f47c406dd66b23461. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GRER19500119.
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
O Pio Kalos O Mathitis (Zontani Hxografisi Apo To Kallimarmaro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb516964e812b56174216159d8cdaa85a5b56a9ef670b85903a645536fdd6ff. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/GRPA12300444.
Maria by Callas (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b806486c7446f2a814715beaef3a5404cbfca28f54d7748e3bcfdfdc5db220. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FR9W16000240.