{"copyright_id":"0xaade1b5079ce60522e079cf3220d0b0e5d9deb51e61743cba79a0a1f96f8ca4a","name":"Mahzuni Şerif","registered_at":"2026-06-14T12:50:34Z","symbol":"NIM0458287","token_address":"0x8cf6e64bf8bbbfa2da1dd885a1eddbd9496febbe","type":"artist","uuid":"4fc5bb3d-1ccf-44dc-8ec0-6099a28b0ddc"}
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 0xaade1b5079ce60522e079cf3220d0b0e5d9deb51e61743cba79a0a1f96f8ca4a. 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/4fc5bb3d-1ccf-44dc-8ec0-6099a28b0ddc.json and https://artists.proofprofile.net/proofs/artist/4fc5bb3d-1ccf-44dc-8ec0-6099a28b0ddc.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 0x99f8f577a860215e0a80593542391fd53c6caf5ab52e910119bfd62ab0b2d236. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/TR2711300913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f376ba716066161b468bc3901ed5f10b8585337ded498dbcf2b2d1e8a96926. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/TR2711300914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5fc9c4d130d35867f53ebdcae34362de48e1fbc66ed06ac5c51409a3c47cb9. 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/TR2711300915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9832d870e9b42f508a6a6406cc080c4a889e068141bdae256cbe214f10585e76. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/TR2711300916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7071943913d548d59dfaca4d4245565b9b753ae3237c0d640fb6923a25a49cf3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/TR2711300917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83cbf5c7925ebb1446f366d8182d7f64934bf611b45a995957d885642d6990d. 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/TR2711300918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c0e233adf9f72774c17d65d7740c4432f9e27b176c179b2f16f8bbdccd9ba3a. 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/TR2711300919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79ebb812d35ae7a63cf25d8ce574a028bd0bc27cc22db77798d7908e290d83a. 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/TR2711300921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe755295bff895a3de89451d6d6cf36cb3cf84432ce6b41cf7426af5178b9d1e0. 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/TR2711300922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0af4277bd93deb0a36ecae9fece56dd1387931fcb730716197a4b3d00c043d. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/TR2711300920.
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