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 0xf5c7f4221c825ca01a5e0cbfffd17ec3722ec75fae34b9d5d17e4b93a6e3f3f5. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b95a3cc2-0961-4e34-95f6-d84f86d88b20.json and https://artists.proofprofile.net/proofs/artist/b95a3cc2-0961-4e34-95f6-d84f86d88b20.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 0xca16545c83c673035a931c12c18c42f11bd64b271306ae44dfc41b176eab1ed7. 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/GBRKQ2140420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15d4e2cf418d8cd877227952ec5d57d8f5707feac3eb5d43e5db94ba5389d371. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GBRKQ2140423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a6f666e8565cfea2d5ba4c8aa796fb488534f206f5ee7f25516e1cd9559edd. 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/GBRKQ2140538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe880aa247f6a8dafa51ce1337e6e4b89e5a716e502b641b732c0e36781da5244. 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/GBRKQ2140539.
Wake Up To The Overdose - Mark Smith Notorious Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f52fff9dc32c4c09e3678de3e45129b11d4d26bf8dae7aaebafcbae632a5fbb. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBRKQ2140540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62335217efaeeb9aa7215e8ccc1060aa6685ab0f5177929502d21174367d777c. 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/GBRKQ2140541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22efbe1e16e6c066a7575c7ae62a9047bff44e3c1bf6887d0590eb3d333c5e37. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBRKQ2140544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc26ef4e1635f015b848cd56a33714b3f2f90a8cfa263b59989b89dec7598f417. 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/GBRKQ2140559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff03bb7f9d786cce4d38b02baafbb76a8563d5c6968894432197b2c180ad93e. 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/GBRKQ2140568.
Directions In Dance, Vol. 1 Paul Goodyear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162293487a2724034c5650445c215f285c573bf8392fa6d80e01cc24402c99f5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLZJ2020588.