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 0x6048afaea03b55d1a163baa2ef0ba4adce9518856bf65126220563f4f2bab0f0. 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/22964b90-1587-4865-90a4-5970331c3e6b.json and https://artists.proofprofile.net/proofs/artist/22964b90-1587-4865-90a4-5970331c3e6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Beginning Years: To Xekinima (78 RPM Recordings 1938 - 1949) Vol. 1
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 0xa05b4add79558d40f49b2d9122b6746297cbe0080903536e5339d96624432793. 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/USA371512937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9612738f636fb41e6480094ee6384a642b0883e52436942c7fe735cdb7c98557. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USA371512939.
Esy eisai i aitia pou ypofero - Εσύ είσαι η αιτία που υποφέρω
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fbf1096da975747e92a56cf88417d5f3b3c65398428a2e9d9cd4096ba0acfa2. 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/USA371512951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6cfb680e411218b9c51ee5a9b20e54f45e9892c7fded70a58d00a566eeb647. Chain 2 (Bitcoin): anchored in block 957529 (2026-07-11T06:30:13Z), 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/USA371523416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34b3f3d3101b4b19bfea01b428c34a529f2c99141d57f4fafcc34fb17e99286. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/USA371698779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0cc87bf3f98a46b9d7a5c707753ff2dbc0ec87df747edc1cacf2839ab5db70b. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USA371698784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e2dae8dfc80fa6ac60887cae41e0f1484a0d31265f2277df1b78ade215156b. 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/USA371698798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f87c8ada0b4e8f3e260291c96ae5fa7b51ae89fc844e5edf7363239805145f0. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USA371698813.
O Minas Ehei Ennia (Mia Zoi Tin Ehoume) [Apo Tin Tainia ''Soferaki'']