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 0x822f133ca336ee5b8548ca990c7757ecdbe8008415de9c037f08cb5cdf2ccbd1. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e11157c-e925-41a7-b318-2b58e8d4cf6b.json and https://artists.proofprofile.net/proofs/artist/4e11157c-e925-41a7-b318-2b58e8d4cf6b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
PINOKKIÓ KOTTÁS DALOSKÖNYVE - Presser Gábor és Sztevanovity Dusán dalai
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 0x86e776027108c81edd9c9d2b09fceee5d41e830589121df51089f2f71a642383. 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/HUAOY2300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0a8ceb04943900025f57fd10e85ceca1014aa665bcadcea1eb4f62bddfe541. 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/HUAOY2300171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce11f99a8bc78768682b9cb50d70290251c91d3c05b17224a7ce7bfe4663e24. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUAOY2300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a132e4338d77625baf83e9b196f70515c553069d06d30222037fe17d741613. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUAOY2300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e99e2487f6354f6b33decdad796b793cde4fbcb1c89bd1d47846f03e3a06d79. 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/HUAOY2300174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe32d15b7e83ecb2dc831d32168731998a4383c9d930e773010d02b4a08cddea9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUAOY2300175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af425292406b1634546b0acb87f661ca91e9a96e67796e70959e5393c13ec52. 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/HUAOY2300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602a2ba5d39be43003e4b818108d310de8220f4b170f19a09a54a294da9010de. 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/HUAOY2300177.
KOCSMADAL A KACSALÁBRÓL - egészen kisopera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x656dcc4100e1316bb958f34d395df7e5068221af66fa733d20f8248170582455. 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/HUAOY2300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ff83917cd2245c3645adce6b95ef0c8afacdbc08c26fdd16706b2652eab7e8. 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/HUAOY2300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551f2eb5887e53802f80434125b3b750486c9e44072572444b3440004117f2b1. 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/HUAOY2300180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1d8c38edf956c6408e3c6b48f3f31d21676a0f3f120decd70f550306cf45ac. 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/HUAOY2300181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b033a41d9b10f1c8a4083eb91407977757074c893d51f039acad2ef674b142. 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/HUAOY2300182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e4cdb1c9923471999c8ede17bc04fd74f2165ab0f3e45cfc128d15a26be0c7. 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/HUAOY2300183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5d09d99363d56407f277f4f2eeccd9f8b0d5f64e826413ed3dc5e0e7547c29. 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/HUAOY2300184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7d107e688e438788925360d4cd7af266db3dadc078c2c4fa2a18d3bc38e1388. 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/HUAOY2300185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d4a6d8fbc23e1f88ea744039cd33cd26f3e1d428cb9c74d6c2f23ce575f7fc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HUAOY2300186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80ffd2ff6b5aa89a7c5d31bbb2677990774b6d4534ed6e12f56866eb295683b. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/HUAOY2300187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3fd67f73b9f0e3db6bcfa3d2087184e967a05125a134b11e4da345e6367ea9c. 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/HUAOY2300188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd676a05de047e48f19294a2eac5bfc21baf792f4b56e721421b73115622de6d6. 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/HUAOY2300189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8264b1638a329471f4b226916587718e914eb05ac8f86ed14e7a8a14dd6baa5. 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/HUAOY2300190.