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 0xa855c9d2f851f64e079741ee43c4a27c789b60caa4bf3baff3b68edf39a95866. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2dfb4e4-887d-4121-bc34-556bb8b83651.json and https://artists.proofprofile.net/proofs/artist/f2dfb4e4-887d-4121-bc34-556bb8b83651.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 0x5a66bb558d763f5b9bb3c45891bb86ab13282fc7c811187a689da4ddf0d5b12d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBLV62318683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09e78c34e9fff3d69e5715ddde9c717a95bf5d50e906845a0b788fd78a6e047. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBLV62318684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3727bd253cb1bd77c48af329412111528e1414a3586ffd4093fb3ce5a9ff6d8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBKQU2449363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5dfe8fc10200c1ed5ba07a714fa24b6fe0000a4bfe0da38a98a2bc327e876a7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2449364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393eb89a8064c3dea3890fd21177011a869b06ef532c0d2a6d7c2066afeaf016. 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/CAM372500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393eb89a8064c3dea3890fd21177011a869b06ef532c0d2a6d7c2066afeaf016. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:18:10Z), 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/CAM372500176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa72612455c145d96528ff8ccb623ce1a19ed0a1903e13bb67c406d1729e89c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBKQU2409861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea03151e4d87ba99ef040bae373cb17a245de143fd05a6f5a252759f27796efa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2408321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab4a87d1e2fd3d9db92973b9dc5b0d45e0095ee69123a758bc04ce5480d867e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2455355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ca8df8720555d4934ee39fdbcd67de9bc13ae31de2684f4c0a6c943dcd656e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBKQU2432770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f31c36b5376c7d6777cf18b80faae34591c65d391e3c6091386fe8cd4028f5f. 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/GBKQU2429213.
FYH396 - Find Your Harmony Radio Episode #396
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4983fc22159d41d8f3c7105454853c805e4e3e722d2257de6718d46e854a6a85. 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/GBKQU2431017.
ASOT 1150 - A State of Trance Episode 1150 [Including Live at Ultra Music Festival Miami 2019 (Highlights)]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa886731314b20a30700038d3c20bd2f92459388892a95fe9b6342f12deb0d8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/NLF712308907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8054330334a4c09d62c5a6a9781aea11976c2699fce0e1711f470a786e90ef. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/GBLV62310236.
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 0x5e8aab942070507e6dad56a8243a92325ce49806ded7a725dda3f4ea9724e217. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/GBKQU2385854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34dafb1669adf4f69210d5e23615d7215f6d361d1863587cdbb64f07037daa86. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/GBKQU2458012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59334d522682a395c6e08559ffa718c7114e46fc524ca89b6bd21c08f80bafb6. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CA5KR2472676.
FYH387 - Find Your Harmony Radio Episode #387
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d313820eb379cad504e960a9d0d2011b8ec940ab63298495ed2075f9bfb76f8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/GBKQU2407867.