1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x10e1df352b04f50ab7bedebb8257f8ac070477f9e07c1ded2b03f5f95e533255. 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/f3cdd8fc-49cd-4057-b737-f0f8cd61fbc7.json and https://artists.proofprofile.net/proofs/artist/f3cdd8fc-49cd-4057-b737-f0f8cd61fbc7.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 → block OTSBitcoinBlock must exist at that height 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 0x05f0829086080771574ff1ba1dfebac27d789ebb9d0e37ad987060e0590b527a. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/FRX628593050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e4b9388036451c3e8b1ff65d13a4aef6390c5db0211154b65efa7fa730552c. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:03:16Z), 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/FRX628593070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51556b1452ee80e8a192f8b428c3dd62be961269add10e784302f7e5aaf40568. 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/FRX628593080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0afd4fdcf8595fbe89f5382f1c3a967310b68cd6c73ad5838797741108ccd0ee. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FRX629589004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f04bfa903e19baef4e8a14eb5e062ca84cc3e1523d273060705bafca9e7d888. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX629589010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b45ea7e027b7de0826ee6a413b5090321c78c74b8274e8845ddcea3dc7f923. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:26:35Z), 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/FRX629559005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577c7f78fd085b9eace156c6410660bc721bc32044eb5db75542cb126cf00b0a. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FRX629559006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ece3f00bfdad714606c6bbe7b2ef997905ae50bf5dbd70ad10e124faf7cc8e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/FRX629559009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c501cdfef2ab5119b2b5e995fb7916ac6abc3a54f70ff97cdede260b15daf94. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRX629559012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c8df99b07068626a4fffe2486709aea37031c081d891bbf917cdf7bc3c0339. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRX620045020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24a29f32adfb3736a1071464a9742136232567bcd424bf7b8622cfb9a920f8f6. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:56:53Z), 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/FRX620046080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11dbb0ee038f3c9209aa3fdf1d0f6948852e14ec2a9fe078d602674d7115cbe. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/FRX620661030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e559d9028b4610dc5dbaae93f285990a80587b1c93dc9a59ebb7ac9310f917d. 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/FRX620661090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebf3afc871c4fa72bc707bc168c2975fcb1c34ae70c6e6ff94c1e9aa17f9a2f. 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/FRX629559003.
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