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 0xe1777034a6c24ed862910d259a339bea96326ba8f3454f66df70d3849b57974b. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e3bc083b-e49e-4788-9060-d6d70b0cf57f.json and https://artists.proofprofile.net/proofs/artist/e3bc083b-e49e-4788-9060-d6d70b0cf57f.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 0x5419e393d7498540bdbb58d8f32df12986433d6f668420df076a288df6aa9318. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZES82200192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835d8f7ba4a26c069c2ac2412bfb91c67e031d14538b354f12e68cdbd77ff85a. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZES82200193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a8eb7f8a3fd299de39e3a46dc931b05732781d77837878e60613c80e1ad5760. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QZES82200194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3237a0622ad59cfa9415bc5651cb96a03b9e0ef9a25cde97c0e5e4950ce35513. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZES82200195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cf79e5d83e0051bf33a07a230e76795b196f4ff2784eb0eda5d2ea493fa1da. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZES82200196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa94327ae2a6bf8542af97d69d5b7af2991a827d8ff18e2c0c94986d44f197aa2. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZFYX2303868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ea6647f0528a84d59c9cdd8cb3a3f614ccb4f1241d804cab0cad829bfe0530. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZFYX2303869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57d1301bf3a40cf9c87121a7c6f61e39607585a9ff1980fafac72d90c69ba74. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZFYX2303870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465fc7cb823ad8a634db23e9cbcd056be6d758e7f576f2da9a7ceb805fa433d9. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZFYX2303871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83526ef1801efe741b9a867ee72797545fe5ae9688817a340e2d74572a24391. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QZK6P2534643.
AS THE HERMIT WEEPS ALONGSIDE THE RESACA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8981c6947074f4c124220718e00d35793f89109fd1d0c72780a1d43d9b25ef79. 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/QZK6P2534644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bca7da7b86ff22f52f4774a1bca32c7e8b278c170e16c414f3372bb55bbdab6. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/QZK6P2534645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9069b78712b3b6964a9efe844628333333a6842f5bd5ccd6f4a8b6d226b0106. 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/QZK6P2534646.