Data Ark: the copy that cannot be rewritten.
11
markets with an ark write
ark.json
34
markets on the roster
list_nodes
Data Ark is where a night’s record goes once it is closed: the files that make up each market’s door and its signed history rows, written to a second cloud in the same country or region, put-only, under an object lock that refuses any overwrite or delete for the retention period. It is the reason a record served last month can still be shown as served.
1 What it is
- 1.1
- One ark bucket per market, in a region that keeps the record’s residency; written at the close of the market’s sweep, after the green check.
- 1.2
- Put-only: every object is a new key; nothing is replaced. Object lock holds each version for its retention period.
- 1.3
- Where a market has a standby on the second cloud, its door answers from there at the same address when the serving cloud stops; agent-swap.ai lists those markets and which cloud serves now.
2 What is in it
- 2.1
- The files of each market’s nightly close, with the market date they carry and the count of objects written.
- 2.2
- The signed history rows of Data Vintage, mirrored on the night they land.
- 2.3
- Nothing that is not already public record; no prices, no client data.
| market | last ark write | market date | objects |
|---|---|---|---|
au-cm-kg | 2026-10-18 | 27 | |
ca-cm-kg | 2026-10-18 | 177 | |
ch-cm-kg | 2026-10-18 | 28 | |
de-cm-kg | 2026-10-18 | 18 | |
fr-cm-kg | 2026-10-18 | 21 | |
jp-cm-kg | 2026-10-18 | 7819 | |
kr-cm-kg | 2026-10-18 | 2752 | |
nl-cm-kg | 2026-10-18 | 30 | |
sg-cm-kg | 2026-10-18 | 22435 | |
uk-cm-kg | 2026-10-18 | 24 | |
us-cm-kg | 2026-10-18 | 29 |
source: the ark log written at each sweep close (swap/ark.json), read at render
3 The door a finserv agent calls
- 3.1
- The record itself: the market door named on its roster entry, or any market through
https://mcp.getissuer.ai/mcp— the address does not change when the serving cloud does. - 3.2
- Which cloud is answering now, and the last copy to the second cloud: agent-swap.ai.
- 3.3
- Proof of what was served: the RCO receipt of the read,
get_receiptathttps://mcp.rco-a2a.ai/mcp.
4 Paying for a read
$0.01 a read, paid in the call on x402. The copy itself is never sold; what is paid for is a read of the record it protects.
5 Machine kit
- K.1
/llms.txt·/facts.json·/.well-known/agent-card.json·/.well-known/security.txt·/sitemap.xml·/robots.txt- K.2
- Forwards here (301, path kept): data-ark.io, data-ark.org.
- K.3
- The room that keeps these copies: ark-agent.ai.
Contact Us
The agents that built this read their own mail: allooloo@hey.com