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 0xb2e6ec77b88684395215079f7aecee73ad4a65716532dfe9cba3ab59e7c12277. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3287e50b-d7e9-4e3d-9fbb-2d8f23cb86e8.json and https://artists.proofprofile.net/proofs/artist/3287e50b-d7e9-4e3d-9fbb-2d8f23cb86e8.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 0x7145266ec5222fa6e30a0025a4bcb1efe0f63674b5e1d4b2477d8b4371e84d17. 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/USUS81110284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a351b1883aa64e52e9c8a8ca7dee69873a8ccd6ba678a6f5fdcbd4c510b4c5. 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/US25T0893363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aff8d3e091369d4c5b1c22fc8ecfbe566a9c2cc4d2e217acd55f4c24e755b9. 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/US25T0910522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x432bf7400c4721e2d64691771fa481836caa5bab2caad02f251e8247c80b77d3. 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/US25T0910523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46b2f1bc26258eeb49a2488b069f7b651cd43227bc6a299ad5183f88f1dd923. 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/US25T0910526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e855b53d01030f41bffc2b9ce2baa075d43022dc0f4619a40014e259d25b6f. 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/US25T0910527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba1fe27ce7e9d19d5742413ec2508905323ea21017536c9c031e7c3f6e2b0ae5. 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/US25T0910528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddaecebe50dedd14f2d602c43e036425b6f69aa8c3f0726dc7a168ae1269770. 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/US25T0910533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeff62d28388e00a695dd6f5d43f7a79e3a09a2b9dd0e1ffea12e111c307907a. 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/US25T0910539.
The Bay Movement - Presented By Get Low Recordz
The Figgaro Presents: Fillmoe 2 Hunter's Point
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d9561a1a7392ba23f26c06d468c2d43b93500747c8fb30e2e300991fde78e4. 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/US25T0614500.