thumb|350px Lycia (;"Lycia". Collins English Dictionary. Lycian: 𐊗𐊕𐊐𐊎𐊆𐊖 Trm̃mis; , ; ) was a historical region in Anatolia from 15–14th centuries BC (as Lukka) to 546 BC. It bordered the Mediterranea
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 0x40dd675d5d2cd806c3ee0cc6589b4d9d8075f851e7bcdcf244f0a56ba3d4a787. 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/e817da50-4dbb-4370-a612-8de1c8e405ac.json and https://artists.proofprofile.net/proofs/artist/e817da50-4dbb-4370-a612-8de1c8e405ac.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 0xb5a1acf96cb8662f885688e4c18838a5343c17ef13d8c54e3d0236f94eae53e1. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/QMG6M1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8baa368e637265d5eeb0a1a067763b5deb954c48ae85c1a5294362d8c1f61490. 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/QMG6M1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aeadc46cbb8a9be155f7d8fc2890c6910ea7c63c3c7947e9df4388f8aa684ff. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/USI4R1053277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6888738fcecbaefecbe2fe5f4a80de053e372e446c73db5e26d9ae5ef28a5861. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/USI4R1053279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabe867f6eb2c4a1d447b4193a30d9e876af2fceb2f65b5546ac26760c53e7973. 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/USI4R1053280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c4df8b4ad98ce25c861d33f589d7e2a6d7b598844a48b67444c3d5e1c3ddb7. 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/USI4R1053281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x518f9c4de464789ded71834bbde607ec0f5543c99afaef3e610cc27ecbb9e6eb. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USI4R1053297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5eba103e8932f1f1b3eb5057f94d7ccbe6bdeb51350751dd196c99a12bf55f. 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/USI4R1053298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d9ad13ac8ae4650788634dddfe9abdc27d16919b0928eb2c6a75a36ea10841. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/USI4R1057131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x508b47d8acf41bedc7a86aa796c0719b2a907768043d2d91bf7f6d8b91f28c17. 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/USI4R1057148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87cda5900ba0c55bab3207be0deab277f48dda8f79e9d4f115f8a0c5bfc5fa25. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USI4R1057132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b6bcc6f154805e8f2629cb6ca62cfcd0aed86c3f1ba45742e273cf34f6d35d. 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/USI4R1057133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3af00f3bae94fdd22ccb60292b109c3bda4b1ce113f934bef8e58b6301d646. 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/USI4R1057135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70b10a5e7be4884b1ac9c23bf379a6619302f2e2d9d5e17ad6ae25c1caa0e03. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USI4R1057138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d0a2389e91511b2415db8b5c3f76113b19b8513a2d3ed0f4ff8d37fcc97d8c0. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:46:09Z), 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/USI4R1057139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bdec9744fae114df5962495e56fd66039b71bc9c8a54116cb924f3802b4338. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USI4R1053721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b289c1ce63821d56245201a34170aa447b87eebf29ed357c0cd0185115772d. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USI4R1053724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb341d04c40babced5734fa79833ac4e6335c23b8954468852e2456ce8682433. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:24:37Z), 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/USI4R1053725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937f790615371f909f6fde520b83bd2babce143f42f9a3fd1e12b11d048a5a2c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:23:27Z), 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/USI4R1053727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b4f2c1e81c02866fceb40298dbd88ba992bab67597d44d450e5c8096ea75f6. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-22T01:21:58Z), 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/USI4R1053729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fed57372f5dc39a8eb36fae4b997f951e5b93e267f576eccd9ab90ec010b2b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:51:05Z), 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/USI4R1053619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb295629d3a197007cbf3ee192ae7869169c81b82e3fc3afe128a7ee68e08b0e7. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/USI4R1053621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd756e08670dc5a94458a60dceb53ae1ed21662c0d1f7c9716954db598f88f1. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/USI4R1053624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fba5ba9dce92905a832cc83f3af3362f9c3d796e719fe57acbb8789835418b. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T23:47:32Z), 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/USI4R1057556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x092b8c81cf033545924202007e02b7fdc2fc6f988cfbd0d2c16b1ddf46d284f6. 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/QMG6M1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5474d84088ae0bc454c56325a2799216fded7587940e19264efb00f47e2c7b. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:23:59Z), 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/QMG6M1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f2ed5ffa11003884a0d82fed4a6bc1ccb76442901c206fd2e5ff888d568fb53. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:59:03Z), 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/QMG6M1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd347083d3a915f6ee334742d5fd9feda36123fa4b99966d61fb4607923f6d2f4. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:07:31Z), 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/QM6MZ1830382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a4ef4ed57c01d1618486fdf7c91ad811091595eb55718a992b3ad173a1b4a2. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QM6MZ1830385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591f8a8c7b71a73450d70c1b34fa0ea985096e07cd28203ea892d7ea54e74392. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/QM6MZ1830387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1490344a4fbce29ec65b10a130fc70cbcbe7293d768976e2f5bc7beab034d0a1. Chain 2 (Bitcoin): anchored in block 958706 (2026-07-19T08:50:34Z), 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/QM6MZ1830391.