Fedon may refer to: Julien Fédon (died 1796?), leader of an uprising in Grenada against British rule Faidon Matthaiou or Fedon Mattheou (1924-2011), Greek professional basketball player and coach Ph
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 0x6739d4c6fc33bfefe22a20dc0c6f1a3da2e45160a1fe08cc4447e57c056e3343. 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/7dbcf154-9b46-4ec7-a469-a223765d486b.json and https://artists.proofprofile.net/proofs/artist/7dbcf154-9b46-4ec7-a469-a223765d486b.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 0xd03ce7495f89f1a3d4cf1c0b5ac02f77670dea2d8d606a0c15f5e6acad91b922. 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/FR59R1464127.
Manouli / Ena Lepto Pepirtera - To Vradaki
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a9dc557df5e2d3a436259a54f0600037879edd6eeaaf59f30548a13e8c198a. 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/FR59R1464131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b8632e2eef27a76776b23a8d8bee4c64502c991027288ada829bef512986ea. 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/FR59R1464133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1677e7dceb423afb94c0d10eb0e89f23a07a4c22de235fb5b35fe96c61d28aa. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TR0580600288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8807476c0e51456a4695102920370b72fc66cf65df562425c9d60ad09f3cec80. 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/TRA160000669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c36772688fc9ed69875667fc16b2a9dd6bbc1820a049c9782decb3af41be42. 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/TRA160000672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bf8780c459333dde66e438064943dced11a98434ffa56a483dc301fc8f8661. 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/TRA160000677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0846537cc8d8db2aacc3dc6e494d16d289fe344d42ea817c0adceacbb0dd9a67. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/TRA160000678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c03b2dd744bdd2fe28c30659db7b79f233b456c6a79fc0cdd107270279b79f9. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FR2X41463723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d4c75036b3f003b240e3fedc337f1c5d6ac37f0b397588209fd88c8fd50c31. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FR2X41463727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae2e0120f624606b712d482aed61d72dd137f7d8ae42454a1edbd86314c6cea7. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/FR2X41463732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cfbc6351ec25d1f28af00e10b27361d428b3bdf20d5ecde2786bf68265b438. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FR2X41463733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd422bf6fe337b805fde2bae2685aebbbf8e65df4166bf9a9bb28d8bea79c0bb8. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R1646988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7dec56f60fb59cf80a831e8a0af2938c42a1433773129ec37c994fc1704b03. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/FR59R1646989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x297dd7b46bdabae8c11474b052f332012cfcd4591e62ade6995be508216eb91a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR59R1646990.
Potpori - Opia Sou Ta Mistik - Maral - Tsenna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9765417f206f6fbf7a03c11957d8cc94958954c5e9dcef8481eb1ac3a9b528a1. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FR59R1646997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4807742da117aca4b5001766717f090e204251448cbd34cdfb844132074c741d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TR0582200081.