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 0xcb1d04bb9d62b656f1c8df18ddaf0aefaea70a39140fade39e2c514a9237f607. 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/f573fd2d-5b37-498c-aa31-59ebb8da0d2d.json and https://artists.proofprofile.net/proofs/artist/f573fd2d-5b37-498c-aa31-59ebb8da0d2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ağlarım Gülenim Yok / Gözlerimin Yaşını Silemiyorum
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 0x8f8b1ce8551424ce20ee3ae191e74c94dcc27dd38827d46b91b02e3eb97c2536. 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/TR0330605335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7113f518d7898ab54e2ac02bc76a35d60942abac520e9eeeafc1cae431a38939. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0330605344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac22e4fff5ea0e52cf7d105a43333f10239f1cba567c3f0437798cf10dad314. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/TR0330605346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51bb3a8b5f4960c019fbb4d9ed6b142cd1dedc1cb64b2c439147633444934fd. 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/TR0330605333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50421ca17b91f2a427d76dc869060001f3073f834917a7a8615534965c89144d. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/TR0330605331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fa26e220988875f6e19b16c6ef582bf74c744a46ff4add9473c0cc770b7c97. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TR0330605337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ccf9552c4e4f335becaf00f7da2f00574a83a8835c5ac9509038587129641ed. 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/TR0330605345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f85f2eebe9758f2f26af5e1e093095de10b005eb82154044205425655e79cd. 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/TR0330605336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481bcddb3c076ec65fba0531cffa2d44f7d957c87ca6f9e3f6c05e9159b9649a. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/TR0332112568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7151b8f8305341ada873349069a2394274e40caa2f60a7b5cb08bdda0a22e174. 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/TR2202004985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52be919e06be1a2a3a923da545a0712451f7b7b5cc49a54922a7b15e2f64d0ed. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR2202004986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce1ee6f68b7008384abf1de7a5ebcb9a8dd6e313834f0cb8975c58a101dee00. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR2202004988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c3332f072dd8511ea360cfde4f997b21da64f3e98b2ce1148fb11ae23c1827. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TR2202004993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683dc71d175dff058ab4a841b302a7c4fa4827b504266b5c3d2691c8b466696b. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/TR2202005002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ab236b1867f56ddacd36d5bfaf99cdf3b7bff2b0cee699aa5baa7ebde349c1. 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/TRAZK1600002.