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 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 0xb4962409863ee1052a5f41cc710846c859e2893f42122450fab4092f8e9548eb. 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/7a054151-0d95-4dc9-afa6-790e14d3eeb5.json and https://artists.proofprofile.net/proofs/artist/7a054151-0d95-4dc9-afa6-790e14d3eeb5.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 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 0x608ebf9c2516dc488afca1613035f1f59842a82bdbe151b583775cb61a9d2aa8. 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/US83Z1785318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82c2a65f8bf649cfa789e48699e2098e27fac2a98b6eff53dc56341e96a56341. 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/US83Z1789700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7606a77ef868df403a697cef2f10cfd939aa7f87a5141cacb161499456940b5. 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/US83Z1789701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a884b789d75a60e6653c6df8df4b4f9ca82724acf9b97cc298fe46df92d8cf3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLF711405637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1ab0949c929cd4ab269dfbd2b6e85cbb5168b88c47fc4c828790a0837c2591. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/US83Z1513455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b28d10b86ec4990ec9328099ad7772f309cdeadd9a05c039f4b1143605edf5. 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/NLE711900528.
Solarstone presents Pure Trance 6 - Mixed By Robert Nickson, Solarstone & Factor B
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7cb2b65b18884fb387735170ede5432b4d93a3ce540e295d538f303ab358a0. 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/NLD681801616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdfec917729330b14b4ae2efe52490360fd7aba65d375ea18f80e79d74ffbcd. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBEWA2304380.
Rain Stars Eternal (Robert Nickson’s RNX Remix) - Mixed
Solarstone presents Pure Trance Vol. 8 (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7fdc0769dc372e91e6f80ae5e4b28bb7485eeaacbb0a25064ac03b86c67b73. 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/NLD681904042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9d939f1f9be43ec7f5c332e726c00221ba0511a939634b2a6ea5607e25761a. 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/CA6D22000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cc1a538f9083b005eb084d4af0e0b899379905c82ec963d2f976f4dddfbfaa. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CA6D22000411.
Lonely Shore (Blood Groove & Kikis Instrumental Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f4293eb6ad0499d3162cb83d54d2f173c9d765535d1190889d34e23a66e1ab1. 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/US83Z2009739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcebac84d2f5758369644504c1ae5c62f8f42aa29770881bc0dd939316870c82. 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/US83Z2465105.
Markus Schulz - Sunrise Set 2024 (Emotional Dance Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40292fbb99bc5c29ce8ff9745f001d394a2a075dd25243409f8e3ad7486304e7. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/NLD682401910.