thumb | right | alt=Klavdia in Larnaca District | Klavdia in Larnaca District Klavdia (; or ) is a village in the Larnaca District of Cyprus, located west of Larnaca. Prior to the 1974 Turkish Inva
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 0x7ab0a51cd71224e4a2946819d51bf7300e119fb13e815074b8e8a1efd00fc7a6. 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/84e09a4c-b6a3-4d9a-b214-566c31c9722a.json and https://artists.proofprofile.net/proofs/artist/84e09a4c-b6a3-4d9a-b214-566c31c9722a.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 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 0x81729b3197bacd54fdd9dd664cf72e74764d48793428d2ef6010e3282fac831e. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/GRPA12200423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77acbf9f2794d376994a4444aa3b30b52ecf120b1e0f1ec57da326294384283. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GRPA12200426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9ceef9c88dbb8360ef464c5886dd2a118ee567a25d5b59878a2066848c2043. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GRPA12300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d927205a8ffb95ad377cbe1354e64a5dac2728629c262fb01f7892c62b5eb05. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/GRPA12300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4916ec93c178c2da9447cdfdf7d91715c32b539a341307dcc0fd55a402f6caa. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/GRPA12300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d11463e4830036ac872db3d81af5a4b76ac67d44887120a396be35481fc2219. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/GRPA12300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d47611e0dff170389c4be7b91b9982a0ae9a0125fc8d05394b7836bf7ebc17. 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/GRPA22400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08aec93fc41eef0a0e2e0e9b991e2bd8e22f5817008cfbecd642181486d21e1. 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/GRPA22500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6188c72068e7d55419e1d4490bfa9fe978b6e290a25a54dd6fdb85cc1b878bf2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/US83Z2337074.
Fire in the Sky - Chris IDH & Isidoros Remix
Fire in the Sky (Chris IDH & Isidoros Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc78dbbbab4620eb89e9ce7ef4dafbd315eb100f2c173bb7325485ded113993. 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/US83Z2337076.
Fire in the Sky - Jamek Ortega Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564daf39a765b4562b61a9cbe33b8e013a139a010498a561a4a14b25e36a67d5. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/US83Z2337073.
Panik Concert 2023 By Opaponlinegr (Oi Panik Superstars Live Sta Megalytera Hits Tis Hronias)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f4580b6b4c45051a22f430daa21b2479fe7b2d1d064dcd55c99cf877e0a2e7. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/GRPA12300599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde114608de02fe25c93dfc4e6ae6eb84bfc62e950b12b3403df5d3db34834e1f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GRPA12300613.
Asteromata - Eurovision 2025 - Greece / Karaoke
Eurovision Song Contest Basel 2025 (Karaoke Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0333c6c603bff9e734a8e24381f5ecc73f2d648429fa3d21bde16583aa46174d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DK2DY2500082.