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 0x659ce6dfdc07648eff72ec6f5d0d34ec6fe32661571512103c00ab65b784b037. 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/f9cd03d9-4ec9-4ccc-bf8b-e02e501683d4.json and https://artists.proofprofile.net/proofs/artist/f9cd03d9-4ec9-4ccc-bf8b-e02e501683d4.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 0x474daef9815f7490b9062a9ea5224d4d3a9648f79457ba174d1091d63866ea24. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/RUA1H2144221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73423b8f702b55ce64f3989ebabf306bbbdaa7db751219517e5530f1c196ba09. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/RUA1H2428903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef8e884affe61d52effbeb228a46e793705b18e3d7170fd3c6adb3b805f584b. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:21:38Z), 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/RUA1H2428904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2b4d2612c2c1461bd5366d88c6101ce5b109bfeebb8484454602da1160ef2a. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/FRX452442348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42d654f1b2ea4af0b0c6f1f5c8fb258199fb07f0f3642367f9978f2ccafa477. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:32:56Z), 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/FRX762438437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0e93fb01252d8ef067d89ad46e4fbb1e5a525c31230a4b8571e8068260c563. 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/FRX762438442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da68792fb550a78816b3191f88eaffaccc59248146de97dc66ad417dfa999df. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/DGA052464413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c60fd2b9543212a3061c2d30e7a53fb3b4d386a959a9c16dff5941c9a9cf07. 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/DGA052464415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce5287f832a6fef3820a0033e3da3f9f1bc330cca77f3574ab167aec245519a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DGA052464416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4a0a3a5822e4de47455a4014ac36a7577b6c2b1df9ba8e210bc7ada31c007f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/DGA072472423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09840c670c33c9881b66950384837562d42c2a0286cec4152bc819854712c50e. 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/DGA0H2431434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e20d8edc6a68758d72fa233f6a4823d5f60ed1cf315abcd43d5d5aadfe6378. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DGA0H2431435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5472582bac15a1e6ce28f6d1fc2975bfb269fc9efe1ba4c12d799909090038fe. 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/RUAGW2401771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f31fb5db4f947fc33b7621a2ef219b17ab928348da3b56fc156eb373d422a0. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/RUAGW2401773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f09b5c9acefde254ea1ad39489aaacc8ab4de28531ae7b9d6ca68ac6f99d7f. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUAGW2401775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41c0344707a60a46d80cfc531182462a421a65d74507f6c60115fbdda740bf8. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:25:50Z), 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/RUAGW2401776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d4eeb74475afa69e486ec77f3f46a1beb0170558dc5524e6528535fd2ec50c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUAGW2500078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebdf06ffd57308a1cc1204d29a56bf0b6749f57476cb52cba60b79763c63a8d. 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/RUAGW2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643fce54c6aba0c655fb85989b01d987426f166630f57975e87e70cb77d5c56e. 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/RUAGW2500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x768ff6d898a45207fda260a0118245ec4b07681dd7f2edb242287a8eb22851ae. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUAGW2500081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4ddeab4724ba194b587840987c4502c3c9a29f613753478037375a4899f93e. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUAGW2500083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe014c72230bd5ac9d0c6ddef535f2c3e044f2e1925d51648a3d959917c85b4d1. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/RUAGW2500084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc30c27a95588a3644197fa3811347af7f9f5894f83fba5c44f23ccaf6873faf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/RUAGW2500086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b752c5f72a21474bac9215372b9216991bde97fb23d5b0fc4340f545a4aab3. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/RUAGW2500087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c41688bd4795951eb9bd79992700e9c3a067ed6860836bcef1613c67b0f2740. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/RUAGW2500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7a5cb2e96a559c8623363f0318fc8b16e2ad554fe442f27142e4790abee81a. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/RUAGW2500712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39108c5c3c89b7b826613fd1530e0f9392c3a1df0f4f665efec4df20d87e9ac7. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/RUAGW2501280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af72d9c2941bbbe674464eca38405bdbcd7227da64fe8de3f739c7de08c8cc8. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/RUAGW2502021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x680757bb4852722a3d273d860e60192f0501e82dd834c75478ca01b38dd5999d. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/RUAGW2502022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abaa0489f6c26d7313ebaeaa62deee54c6376cf133aedf83a23d11c99e45fb0. 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/RUAGW2502025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6da359efa3110442ff3d1d2335125e67f7dc5aa515e7225ff5c58e0e065b5a03. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:04Z), 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/RUAGW2502026.