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 0x266d3a78ebbab1e664f97ca2956a9f1ee71f014e11020cfa1d37223d325d498b. 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/38356389-e865-4fcc-87a2-a56d021a3ee3.json and https://artists.proofprofile.net/proofs/artist/38356389-e865-4fcc-87a2-a56d021a3ee3.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 0x589b6ca4800032d38313befbde5de7df5c55fffdb53bbf8b17266de766b62fbd. 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/USCRB0000568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55cc5bd0a9ff3b58f8bf47f297ecb8213e89f35e2aa0d743de537e36459ed2a3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USCRB0101290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8367e238e0ea9785e37f863ce4f9c7f82e8d84be42601052c1035fe07128da. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USCRB0101284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e75efae847475e8828a31bccd81c1cbc4a944d7e4c66af15bad2e93361fdba. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USCRB0201887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57594e70592bd13dd738272af4090bafdc87e227f2e51f75a2716b487a34007e. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/USCRB9800047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ca1f51c7333be7b661e62bf3b33a30efd2c2665dba1afd94600cfc4714ec7b8. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USCRB0707803.
Michael English (Live at Daywind Studios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x157302d8aa5c57680e65b0d3dc30951cb5b4db7b0a29c06bfb74162fc9b91d94. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/US3270404956.
I Believe In A Hill Called Mount Calvary - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d42a6b965980d7513d0cefacac303a335e84795da930d2fff39a63ab02e57ff. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/US3272000557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f160c227fcaf1bd2e5a90117217a555d647c61fb1ff5ec74e243c5bcc163b28. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AEA3A2198438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fd9852a3c282ea1642ebc5528078fba1229e7c8f10242d920921fb548f1926. 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/USCRB0707231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf36c2bc68ffeae38f557ad057ed4b127d30976f09bac242b3fb1fe94878e602e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US3271700029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd649bb61a39d328e0b565cbcbbf0bcef1585bc05d9909bad9a0569fca2d0e2ba. 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/US3271700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcacecfbc3ad4ad2279c847202f9e8dc43e8a0761fc9a7dac358f6c7ecc2989c2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/US3271100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8f0eb762dcf5e829fbd8ccc36ea0060f4fcce7e40f196c0cc95fd05d9ba6e3. 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/US3271400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e015eb172f52a7fd000c532a0c5f4054ee60117d2907b301bede23f66e9631. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USAT29800836.
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 0x66d1351ebe0d280be93791469b267fd59605f773a8207047168c56898098361e. 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/US3270401188.