Pith Number

pith:XIHG5NUL

pith:2007:XIHG5NULXE4OUN4ECEA3JAOPCO

not attested not anchored not stored refs pending

On rate optimality for ill-posed inverse problems in econometrics

Markus Reiss, Xiaohong Chen

arxiv:0709.2003 v1 · 2007-09-13 · math.ST · cs.NA · math.NA · stat.AP · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XIHG5NULXE4OUN4ECEA3JAOPCO}

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	2026-06-03T22:06:02.391653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba0e6eb68bb938ea37841101b481cf13a2952317c414f2903e58c3c84af5cddb

Aliases

arxiv: 0709.2003 · arxiv_version: 0709.2003v1 · doi: 10.48550/arxiv.0709.2003 · pith_short_12: XIHG5NULXE4O · pith_short_16: XIHG5NULXE4OUN4E · pith_short_8: XIHG5NUL

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/XIHG5NULXE4OUN4ECEA3JAOPCO \
  | 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: ba0e6eb68bb938ea37841101b481cf13a2952317c414f2903e58c3c84af5cddb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18944e3fc71831794bcb9e658acaa36998e1cf6a6b6349419435b53ec5f72dcb",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "stat.AP",
      "stat.TH"
    ],
    "license": "",
    "primary_cat": "math.ST",
    "submitted_at": "2007-09-13T07:31:19Z",
    "title_canon_sha256": "f42f4a3e731e3ccbf5139427e05877a2336c29969b4d22cd2f50b5c6cb1f4059"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2003",
    "kind": "arxiv",
    "version": 1
  }
}