{"type":"external_stamp","verified":true,"merkle_root":"5d56de52a87855b04ca8a3a89f045f3375f9523e80a887352ad682f96f6cf7f6","data_hash":"3d7738a7108a534f3467512509380251c2235e19cd521ac4c3f224fa385b1756","wallet":"anondce833675945c1cb8e4ae3ca42da15f3","issuer":"anondce833675945c1cb8e4ae3ca42da15f3","zk_commitment":"[\"16701524209318583161141287990993061457645868478383713725700287455123772481519\", \"10157829657709504844324023413262086377162857345945772051598191916223329844012\"]","block_height":135180,"label":"c2pa-poc","stamped_at":"2026-06-29 15:28:01.691717+00:00","anchor":"merkle root recorded and bound into the public witnessed transparency log","note":"Public COMMIT. Proves the data was committed at this time (provenance), not that it is correct.","bitcoin":{"note":"Two distinct functions, do not conflate. OTS STAMPS this item (a timestamp). Markovian ANCHORS the whole chain root to Bitcoin.","tagline":"A stamp marks a moment. An anchor roots the whole record in Bitcoin.","stamp":{"function":"stamp","what":"OpenTimestamps timestamp of this single item","via":"third-party Bitcoin calendar (OpenTimestamps)","sovereign":false,"proves":"this item existed at a point in time","proof_url":"https://api.markovianprotocol.com/verify/5d56de52a87855b04ca8a3a89f045f3375f9523e80a887352ad682f96f6cf7f6.ots"},"anchor":{"function":"anchor","what":"Markovian's own chain root, committed directly to Bitcoin","chain_height":135180,"protocol_root":"7e2f85323d0ace96fc3fbe45cc1cb8390c972b3c4e2d1abaaac9019418fb694d","bitcoin":{"status":"confirmed","btc_txid":"87f32ba351006a4abc665fcb1d0572f6800459d16baee759bbe4ae88e8d5d71f","anchored_chain_height":138189,"verify_url":"https://blockstream.info/tx/87f32ba351006a4abc665fcb1d0572f6800459d16baee759bbe4ae88e8d5d71f"},"sovereign":true,"anchored_by":"Markovian protocol, directly to Bitcoin (no third party)","proves":"at this height, Markovian's own chain root is committed to Bitcoin directly (no third party), securing the protocol's history sovereignly","scope":"anchors the CHAIN's history; a guarantee SEPARATE from the per-item stamp above. It does not by itself prove this specific item is inside the anchored root. Two distinct layers, not conflated."}}}