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 0x7ced161c36768ceecf3fdfab8500611410d012c27a1c8fffebc88e6a5e3e02c1. 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/38bf50db-89c6-44bc-a986-85a96811d32f.json and https://artists.proofprofile.net/proofs/artist/38bf50db-89c6-44bc-a986-85a96811d32f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I 17 Noemvri 1973, Sta Sholia Tis Patridas Mou
I 25 Martiou Sta Sxolia Tis Patridas Mas
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 0xbfa4074d485c162d73b4f99e08eb52b536c7e6cc8ccd932b67aa2ea124429a87. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMDA62417183.
I 28 Oktovriou 1940 Sta Sholia Tis Patridas Mou
Tropi Kalis Simperiforas Ke Igiinis Diatrofis
Gia Na Mathoun Ta Mikra Paidia, Ta Megalitera Ellinika Laika Tragoudia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc19e287f8e4a409f7cd86df11b9ac96d4cd6a18d33164584378e8e46715151. 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/QMDA62417632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c1c6821b4fa8746661146abaabd686a81a12db5ccbd16c3e47e5779e28804e. 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/QMDA62417636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ede2d8429c6d2029fc37b5d9ba4cd8e8a1d120319963465fcbdac9d145ed30. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/QMDA62417638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f5d0aaee732e953ce4958adfeec47461368a82af834cc3598bfad439bbdfa8. 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/QMDA62417611.
Onireftite Ti Vithleem (Streaming Living Concert)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2064554ac1ac6c107dc81a55052a8ac9f8ab30613db301b2a111678f2c326c2. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:41:23Z), 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/QMDA62417549.
Hristougenniatikes Kampanes (Carol Of The Bells)