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 0x07f4e2b6ef3eb1eede18f50277171dceee6e269dacf29706470c14dc44fafe5c. Chain 2 (Bitcoin): anchored in block 953707 (2026-06-14T23:22:21Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7dfc41f3-0518-4a59-af3a-ead57851118f.json and https://artists.proofprofile.net/proofs/artist/7dfc41f3-0518-4a59-af3a-ead57851118f.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 0x39a4e62de82dda1e0376fdbf17a8eb24b93b9089f53b48cc39ba3bcedc38e945. 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/CHAAA2109788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486af17988ad6495a5b0357f162d78866ef973d406b12298a3a46a1c2d91f4c0. 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/CHAAA2109790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8558a327808aca2afdbf6753deef4c2b479a1f081e9ff9f36bd61e0f9b3934cd. 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/CHAAA2109791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9435a18627e64b7cd69f8739f41e34a6e2a4b711d0ca21ac1fda98721fb76c. 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/CHAAA2109796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766df5b02a5ea4d6789117d79bbd22fb7a6e027e4151a061b436f7633619a159. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:05:53Z), 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/CHAAA2109795.
Pray for Freedom... Prepare for Extinction
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c5676ad0fb44f98787dd30173d64ae1d5c60cbb9fd6863ebe4208d7b16f3b4. 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/QZB4J1894693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9d40a5d975000a118c4e3c9c4005cd8c2828578c697ffef758cbdbdbca1d62. 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/QZB4J1894694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f377aa7f68c9a7261c27ca34783bba92f1112fc84690851ddf84dc0d804acad. 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/QZB4J1894695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dad4758251e7360c40531ddc5d731221de4848116e6913f7279bf9acc526f65. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZB4J1894700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da27fbdf64aa540aa0dc9a7fef0730aa14c9f9cdb1ceea15d2d470b20e9209f. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZB4J1894701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6835d7e1096dbb55acd00ae03596981b1eda60d7d4283b0c8fefff24775a8519. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZB4J1894702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49a65109f79f2c94d6fa610298aeed473afe968e89ae2e2a4a6e011169f437c3. 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/QZRP42415097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5a716805bbbde8b45e44c57ad930d93740dbfc0ffda4bc5de0d27dcf027119. 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/QZHN32496215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce045ca22e2493e2c54d931f3e19af0ee504850d87273e7db5b0195e61e4c26d. 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/QZFZ62449871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x087382ea48b2819d988b55faff036332f1284c91214744be9a267ae481b8aae1. 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/QZHN32381706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8558a327808aca2afdbf6753deef4c2b479a1f081e9ff9f36bd61e0f9b3934cd. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/CHAAA2109791.