=== YUMO YUMO PRICE EPOCH v1 ===
#
# Yumo Yumo — open price ledger
# Product prices read from real receipts, published permanently.
#
# Publisher : Yumo Yumo Inc · https://yumoyumo.com
# Sealed by : 32T9x5xGz6uaHtPnRhUhqHgJyWshbDJas7RYahEJjMjE (Solana mainnet)
#             One memo per epoch, no other authority:
#             yumoyumo:price-epoch:v1:<n>:<merkle_root>:<manifest_hash>:<arweave_tx>
#
# Each observation below is identity-free: no buyer, no wallet, no receipt
# id, and no time — merchant, city, date and price only. Receipt leaves are
# opaque hashes; a receipt sealed with a wallet can be proven its owner's by
# signing with that wallet's key, and reveals nothing to anyone else.
#
# Verify (needs nothing but this file and the memo above):
#   1. keccak256(this file) === <manifest_hash> in the memo
#   2. leaf = keccak256(utf8(line))          — the line IS the preimage
#      node = keccak256(concat(sort([l,r]))) — 32-byte pairs, sorted
#      leaves sorted ascending; an odd node is carried up unchanged
#   3. fold every price-obs:v1| line + every receipt leaf
#      → must equal MERKLE_ROOT below and the root in the memo
#
# The chain proves this data was not altered. It does not prove we read
# each receipt correctly: observations are validated before publication,
# and whatever fails is withheld rather than published.
#
# When we get one wrong after publishing it, we say so here rather than
# quietly. A === WITHDRAWN === section, when present, lists observations from
# earlier epochs that this epoch retracts:
#   price-withdrawn:v1|<epoch>|<leaf_hash>|<reason>
# <leaf_hash> is keccak256 of the published line, so you can find it in that
# epoch's manifest yourself. Apply epochs in order and drop what is withdrawn;
# a corrected value, where one exists, is republished here as a normal
# observation. Withdrawals fold into the root below, so a retraction is sealed
# as firmly as the mistake was.
#
# Row : price-obs:v1|<canonical_id>|<product_name>|<brand>|<pack_size>
#       |<category_path>|<country>|<city>|<merchant>|<obs_date>|<unit_price>
#       |<currency>|<unit_type>|<kind>|<discounted>
#       kind = product | category (category = loose produce, id is a category)
#       discounted = 1 if the price was on offer, else 0
# Recipe    : https://arweave.net/eabxr24slHrMbnZWIaKL3QiL7oitneL7y5sBHzK6EXQ
# Licence   : CC0-1.0 · https://creativecommons.org/publicdomain/zero/1.0/
#             Public domain. Take it, republish it, build on it.
#             Attribution appreciated, never required.
#
EPOCH | 96
WINDOW_START | 2026-10-18T21:00:14.245Z
WINDOW_END | 2026-10-19T21:00:14.662Z
MERKLE_ROOT | 91fa6804e9cce82eef8a27cd4f7822ffe8f821b7bb2ca27306dfb51a4913b604
OBSERVATION_COUNT | 12
RECEIPT_COUNT | 0
CATALOG_HASH | 0447eea249af9b8ae2a5e705ce0ecfaea3497fe46073c9ecc6d8d124237f7d27
=== OBSERVATIONS ===
price-obs:v1|129211f3-b827-4c18-a0f2-b21aaacf8fdd|Pizza Kraker 76g|eti|76g|groceries.snacks_nuts|TR|IZMIR|BIM|2026-10-05|14.50|TRY|adet|product|0
price-obs:v1|22db1c8c-83b8-42b0-b279-474285e90f62|Mandalina|||groceries|TR|IZMIR|BIM|2026-10-05|34.00|TRY|kg|product|0
price-obs:v1|39d8e6bd-08b5-4855-a636-6cb0167d8d9c|Fito Krem %1/%15 40g|fito|40g|health.medicine_otc|TR|IZMIR|EROL ECZANESI|2026-10-05|219.55|TRY|adet|product|0
price-obs:v1|4d876742-af65-495a-bccb-4e3f106f43d4|Advil Liqui-Gels 200mg|advil|200mg|health.medicine_otc.pain_relief|TR|IZMIR|EROL ECZANESI|2026-10-05|181.75|TRY|adet|product|0
price-obs:v1|57cf8115-cb6f-476e-941e-a862527addde|Fiyat Farki|||services|TR|IZMIR|EROL ECZANESI|2026-10-05|73.44|TRY|adet|product|0
price-obs:v1|5af77917-ea35-4247-8711-853e02e13b4d|Su 5l|camlibel|5l|groceries|TR|GAZIANTEP|BIM|2026-10-05|36.00|TRY|adet|product|0
price-obs:v1|7556b388-bb1d-467f-ab98-aeea6e4a460c|Mısır Cipsi 200g||200g|groceries.snacks_nuts.chips_snacks|TR|IZMIR|BIM|2026-10-05|52.00|TRY|adet|product|0
price-obs:v1|9b9929a6-9e3f-481d-a6b4-417a4da877ca|Majezik Film Tablet|majezik||health.medicine_otc.pain_relief|TR|IZMIR|YEŞİLOVA ECZANESİ|2026-10-05|204.49|TRY|adet|product|0
price-obs:v1|a5109168-f5e0-4478-ad76-db4be58926c2|Islak Havlu 3x60'lı||180adet|groceries.baby_child|TR|IZMIR|BIM|2026-10-05|0.52|TRY|adet|product|0
price-obs:v1|c0a6836d-0303-42eb-98ee-b40b1afd02f7|Nesquik Gofret 26,7g|nesquik|26.7g|groceries.snacks_nuts.biscuits|TR|IZMIR|BIM|2026-10-05|17.50|TRY|adet|product|0
price-obs:v1|d6fbc487-50eb-4a82-9bed-24cdf5b47db5|İnci Patates 1kg|i_nci|1kg|groceries.produce.fresh_veg|TR|IZMIR|Şok Marketler|2026-10-05|95.00|TRY|adet|category|0
price-obs:v1|e124c0aa-12ac-4f78-872e-6a923ab54986|Turk Kahvesi 100g|keyfe|100g|groceries.beverages.coffee_pkg.turkish_coffee|TR|IZMIR|BIM|2026-10-05|69.50|TRY|adet|product|0
=== RECEIPT_LEAVES ===