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 0x37721a201b60d1c73ad6dc99203e1a36579b7c966eff6536d6578fe07ba768fa. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26787bbf-881a-4bb1-94d7-9cb4358a0388.json and https://artists.proofprofile.net/proofs/artist/26787bbf-881a-4bb1-94d7-9cb4358a0388.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 0x9f5fd63c403158ad99e636a7e30b3f7f2b5ddec4feb1b3740d9314cb03b5d1f1. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/GBBXG0520017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6052bad7da2963e7182be0028c11e58328d3de5611bdacc2726ee42d0bb1fcf5. 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/GBBXG0520018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdec2eb48de93ece01f36dee4e2928fa49529793ffe02c017f4777a346a6adc. 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/GBZLZ0900035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947c54638c322a1c49e9d911a088120872b25db2218f9ad41bf27811f39c805a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:28:09Z), 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/GBZLZ1400218.
Rarities Volume 1 (Blaze Up! / City Life)
Rarities Volume 8 (Rawfunk / You Could Miss It)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4bf3e703231d689cc63376d435a144334f9bb1c63365f81135ee8e4adbef13. 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/QZFZ71919005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3f8c3a5eaf4817b8a57b09ab36a16712e55f336f4d4e54e32913e7484753e76. 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/QZHNB2092659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96dd4b1250452243fb75d5fcecffa34a9a351f16a41f2997c5980dba20deff59. 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/GBLFP2169746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad10d97b5ff77943007181284cea5c3d591b7afe20d0bc97b60419fb823197c1. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QZARB1834244.
Fix Up, Work It (Future Funk Squad Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3204d32a3c0c21bde11c5521b2d40fd56cc3e8755ef5f97ded32f38ee7e24610. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/GXF9Q2573121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b093949de1643c13e9cd8dd5cb47f56a32922148ea14ecc4f41e5afdb3e5d17. 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/GBMA22568096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe96bfdd26654d2bab78689bf6d192066fa0fc6aabb7a35c7d246ecac3f92d45. 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/GBMA22568097.
Moving Forward - Confusion vs Simon Apex Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75558f731d09bfee699789c7adf92dda12b5bff5398f5ad200aa0cf37815d37f. 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/GBMA22568098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4649f695061dae5b42566a339474d7e1797aae2ad5fbf03c129bd2e90b1f3b5f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBMA22568100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a41b417c37296cbbd3acfec87a72a6cc4b63a1980a8d0cd98ca21306e66daa. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/GBMA22568101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4bc39902a0ce97e60b0357d47ed98f507c869b1e9c475f3725081423f4bcd12. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:09:43Z), 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/GBMA22568103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2109f628bc12c8b6b9f0ce2c27e35b63dace67943914e519bb6fac2404342a06. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:21:13Z), 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/GXHND2506368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61eee327a671bae6abb8f63839b2f509bdc1fb7d8e2c0146823af85914acbd29. 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/USWB11301859.
So Alive - The Crystal Method & Future Funk Squad Dub
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdbe55129ebf24b3f5b0a9540b0239b21eee344b7214253bbe2ab0ec8c44229. 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/GBAZP2400054.
About To Fall [Mix Cut] - Eshericks Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae6588bf216c2f1cfc282dd5fda1d10697f59c6f27c724d1cbee78d838b14f99. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLF711203066.
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 0xfb0b3a2d8f71cae3833cad432de21c6ad65c2a796acc781430dd5e24c58bafa8. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/GBLV62309686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af7ec478ad60584906a7907af044d944b4632079138ae7a65ad3bdb8a9c1485. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/GBKQU2379617.