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 0x568f8e3ce8699b0e2087f8ece54876796fac833026089031e6359400256a76a6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4bdc63f9-054f-46d8-b167-5c413009b12d.json and https://artists.proofprofile.net/proofs/artist/4bdc63f9-054f-46d8-b167-5c413009b12d.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 0x3db933e9c46167fc015d84d37c09d612acaa0da54ae2a32ac5be67a30c3dfb72. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/TR0011100087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18770b2ae31faf2ce0356985614796620a3db59424201f1fb2cba00181023b8c. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/TR0011100090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231f19f8d2f5b187cd264a6d458fb0f060d20c49df6abf16322287d3d44b294d. 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/TR0011100089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79eb5248483503e00acd30a0f06f990a07aa69d94a31c5979f9b394f8a9a104. 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/TR0011300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x075b52bc22750b73444e17108a59643117e3ab073131934ebcd73164dfa07801. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:25:15Z), 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/TR0011400387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e363e563f430e2f425e89df06f220f68312318057ea73bc1aeb793495be05c. 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/TR0011500489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03c2f0ec9be7ab159904bd3b12d841689fe666521d669df88d60cd48b31efb66. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TR0011600892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28cdf4d591e76925304c73908d44edfd852a954e7b9d7fbbd2ccd2bf8c7aa0c7. 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/TR0011900091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c00986371a1b552a1d11bf517d532c2b2d5492e1fab16ca296f0d659492513e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TR0011900314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e4ed8e2f83da4762f59a6a14ef39cb3fb2803a11a59179b8c0ad4210b3c3aa2. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FR10S2032463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd2b7805f09f552c5815be897c1a126017428055699b196f4d18ee7c6a7be9a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX282019903.
Seni Gidi Vurdumduymaz (Nostaljik Versiyon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2636f0e5f913809d829e5bbf07af9f3868b821635379c20b49781664c3a40909. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:53:26Z), 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/TR0012400113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0870192ec92c34a394865a31458075757d46b0bf39753b9f9341c9d0377e50d4. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/FR59R2515149.