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 0x0addd3b24309cac3fa995dda7a5d04987b75ceb0011fb7d7e3be839cfe250e2a. 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/9ea34ff4-06ee-4f66-bf47-deea6dba1e40.json and https://artists.proofprofile.net/proofs/artist/9ea34ff4-06ee-4f66-bf47-deea6dba1e40.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4041d9821a1af01eda16fe96f010a5341e95c4165201a9d4e11439ba90d2b7. 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/TRALR1400004.
Burhan Bayar Şarkıları (İstanbul Ses Kayıt)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc46a4c93837ebbabf532d76d37556b4bc9d634eedf4d9cd5183ced236897d2. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TR0391500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5babe6f5c9be6a55de142b8f60e63decf6904b7c402d40420ad328782f98c9. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/TR0391500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de9d3183481dc07970ecfb748301cbc793e2004f9ef85b9046832c4be31b77f. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:56:04Z), 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/TR0391500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4704fe29443479b9a13148bbd66e042a718e679461228b5cef331705cb2ed2. 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/TR0391500166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a7d1d0f179e22f3125473b27fd62984294b8b0e513af29aadde91e514a3f1a. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/TR0391500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daba807e4504e9f86e357b63a3108a4c897b2dc288cd51621099f8027612c9c. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:19:55Z), 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/TR0391500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc913a3df57cf6cc5af22454ab593a6b9eadbd112551d32d325d5ffa0b4523480. 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/TR0391500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62f5b274ebf1835d11a27f431259c4827ade195f9841b7014c07e817c264d589. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:39:34Z), 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/TR0391500170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc46a4c93837ebbabf532d76d37556b4bc9d634eedf4d9cd5183ced236897d2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TR0391500314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce5babe6f5c9be6a55de142b8f60e63decf6904b7c402d40420ad328782f98c9. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TR0391500167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda174dc9b6ae2cebf4c6ba915d057ded4693f073422db7f9c432b250b377c319. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/TR0391500163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2de9d3183481dc07970ecfb748301cbc793e2004f9ef85b9046832c4be31b77f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TR0391500168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4704fe29443479b9a13148bbd66e042a718e679461228b5cef331705cb2ed2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/TR0391500166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03a7d1d0f179e22f3125473b27fd62984294b8b0e513af29aadde91e514a3f1a. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/TR0391500171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2daba807e4504e9f86e357b63a3108a4c897b2dc288cd51621099f8027612c9c. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:24:32Z), 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/TR0391500169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc913a3df57cf6cc5af22454ab593a6b9eadbd112551d32d325d5ffa0b4523480. 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/TR0391500165.
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