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 0x63f98e54b2e193cd4ced078e14cef73635abc56ca485271e98b19c3aaf1289d7. 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/ffb43ea0-5340-4b0f-bf65-255eba7ab2c9.json and https://artists.proofprofile.net/proofs/artist/ffb43ea0-5340-4b0f-bf65-255eba7ab2c9.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 0xcdd312775e54d0044c936836933b72e2af1c741e43f9f0d3580574b9cfc9df9a. 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/QZWFJ2340520.
Funkin' Physics Original Soundtrack: IMPENDING DOOM
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c68e3e047d95c135625f8b385c3a2d2a007e563f7606cd6a3e1ecb50355bdb. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZWFP2341057.
Funkin' Physics Original Soundtrack: Foretoken
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20316fd7da87a477d31b460b6197a13f69f0a8c1993e5fe1defd4468ba121143. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZWFQ2376214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782b32e1138466ee364325f930318570b27ac3e0873d566b8928af20a4734c7f. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/QZK6P2473129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8591c689bd20ad960da9df2d4110ad1c8ea376d06d3478b9f6c90606fe4db326. 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/QZRP42440998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137f29c28449d14dcc8690c72d8eada8731661440457226877374b34f24b6833. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:05:17Z), 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/QZRP42422386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6374d3e8cdd6438c304c06c49c14fb71674c69bfbd815d722bc8aacff8405aec. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZRP52400704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfcc03992abade654fc41e175d5b36c1a1ed5bad2979ee6bd02dbf29769e9c9. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QT3EY2419742.
Shattered Reflection (Silly Billy Noimix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70379391d8af74aee550c46dc53f2983e95196e5ff184af6592db286d07fa33b. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:27:35Z), 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/QT3EZ2484090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab5da53b59f36ae395508df3e242f9cff90a3a70eeaec2aebadd6a829a9db1e. 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/QZDA82505028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76cbbfd6188f659c74fe1ecd1322c5553b630bb72d8ee0e9bd183606e7c79589. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:25:58Z), 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/QZK6H2520099.
Indie Cross: Episode 2 Original Soundtrack
Wrappin' (Friday Night Funkin' FanMade Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d714868b9970c16c6ea001556d4907f020624835f0af02e8f52abdccd0e719a. 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/QZWFV2530272.