Pith Number

pith:HHV6HDVM

pith:2015:HHV6HDVMV2VVWP6P2VTFZKVP4C

not attested not anchored not stored refs pending

The inverse first-passage problem and optimal stopping

Erik Ekstr\"om, Svante Janson

arxiv:1508.07827 v1 · 2015-08-31 · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HHV6HDVMV2VVWP6P2VTFZKVP4C}

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	2026-05-18T01:34:31.383942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39ebe38eacaeab5b3fcfd5665caaafe09529f1238eeb7992bf858737131c8544

Aliases

arxiv: 1508.07827 · arxiv_version: 1508.07827v1 · doi: 10.48550/arxiv.1508.07827 · pith_short_12: HHV6HDVMV2VV · pith_short_16: HHV6HDVMV2VVWP6P · pith_short_8: HHV6HDVM

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/HHV6HDVMV2VVWP6P2VTFZKVP4C \
  | 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: 39ebe38eacaeab5b3fcfd5665caaafe09529f1238eeb7992bf858737131c8544

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c43a377d9e2e33c903aefd40fa6d3033b786526a23b339bcb7601e25badf59f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2015-08-31T13:50:53Z",
    "title_canon_sha256": "4885e87efc42ee632b81d4065c1ceced24fa5ea6068aa7b2f2528e8b4f0ad5e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07827",
    "kind": "arxiv",
    "version": 1
  }
}