"Strange Case" is the fourth episode of the sixth season of the American fantasy drama series Once Upon a Time, which aired on October 16, 2016. In this episode, the origins of Jekyll and Hyde with i
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 0x6559c980c38348a9843b52fe8506d10466c59bbaa62c8d62a6e3aae18aa3e507. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6b01ed0d-7f68-444c-9430-b9a245fc6424.json and https://artists.proofprofile.net/proofs/artist/6b01ed0d-7f68-444c-9430-b9a245fc6424.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 0x16ae7f045bb63b7317538960a685633cff37c1167f6afd90a06beb65b22fdd0d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USDY41967280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04870d920b8aefad94bf58decdf60e767dd21487c463743bfe9ec6d150c2b767. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:50:11Z), 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/USDY41967281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc58ad8e552e356e8f8b7dcc8ccb4cce6de712de328a29e7b431b19e6c3cb2f7e. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T03:00:30Z), 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/USDY41967287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e35bebbc068ef52a1901deaf1020d6df8a91bb56dfbfdff5ce1cd77cd044622. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QMBZ91905995.
Jam in the Van - Strange Case (Live in Los Angeles, CA, 2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6f6d5c570edc1565151a18b1e58da7417174be78e8db27b85f9bc4500afbb40. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/QZZEB2429847.