Pith Number

pith:4TXOBWM7

pith:2012:4TXOBWM7BDIBAHEDHKD2XDUXQW

not attested not anchored not stored refs pending

Experimental design for Partially Observed Markov Decision Processes

Giles Hooker, Leifur Thorbergsson

arxiv:1209.4019 v4 · 2012-09-18 · stat.OT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4TXOBWM7BDIBAHEDHKD2XDUXQW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:24:54.645980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4eee0d99f08d0101c833a87ab8e9785b7461a02753661bca8d720675529b2f9

Aliases

arxiv: 1209.4019 · arxiv_version: 1209.4019v4 · doi: 10.48550/arxiv.1209.4019 · pith_short_12: 4TXOBWM7BDIB · pith_short_16: 4TXOBWM7BDIBAHED · pith_short_8: 4TXOBWM7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4TXOBWM7BDIBAHEDHKD2XDUXQW \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e4eee0d99f08d0101c833a87ab8e9785b7461a02753661bca8d720675529b2f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e69d02bef2c26794760ad5b6f87f2dcc20981768531514be6fa59379eef3996b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.OT",
    "submitted_at": "2012-09-18T16:28:44Z",
    "title_canon_sha256": "8277240f3dc24f29384794ec2efedb64b56d7ed8f8694feece7c55048b7988be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.4019",
    "kind": "arxiv",
    "version": 4
  }
}