El Jugueton was a Ladino-language satirical journal published from Istanbul. The journal, edited by the Ladino novelist Elia Carmona, was launched after the 1908 Young Turks revolution. El Jugueton wa
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 0x834ee73216284d1fca8edf11a87c2ed0c7d3768d268d2d99a16227aed7915598. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8f85856-1b34-4372-b694-b0ec8e7b2e97.json and https://artists.proofprofile.net/proofs/artist/d8f85856-1b34-4372-b694-b0ec8e7b2e97.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 0xe7a0984292fad61cc50aa041c59110d1d569f4f6236798a33ceb04edfd295c15. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZS7J2479721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9f049c95d44bccca4e12d016a4142ed3524176f9be74e3ed0e1837690da42c. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:04:22Z), 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/QZS7J2474017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe95c540e2d32dad823768a60ab414ed2f3a6b0c35a8d1c15a6cf8cff5c9135a. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZS7J2400604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68de0c627efa672b4d5372ddbff15acb5bc92cc081f068f7ba6acc4026412161. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZS7J2481871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5e5bcbde7501d391612d87d07d9eae641240997453ee7a22da18b2dd927ad0. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZS7J2499192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98c220f65e3da7322e9c2c25f5e603c35dc4ee9754629624501bd34ad82eb9a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QMFME2511879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4124375f06cb36d95a4d9af0013b85c218db04526ab8291ad93747442a629977. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QMFME2511878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5c0231a8befb837ee8982a266bf19324531552740e9ccf6bef18fa2ada53b9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMFME2511877.