Pith Number

pith:QPTZ6LDP

pith:2012:QPTZ6LDPMFTGMN54ZWIWV7SYJE

not attested not anchored not stored refs pending

Reachability Under Uncertainty

Allen Chang, Eyal Amir

arxiv:1206.5253 v1 · 2012-06-20 · cs.DS · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPTZ6LDPMFTGMN54ZWIWV7SYJE}

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	2026-05-18T03:52:40.899733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83e79f2c6f61666637bccd916afe5849226703b460b987861591664ba613d0e7

Aliases

arxiv: 1206.5253 · arxiv_version: 1206.5253v1 · doi: 10.48550/arxiv.1206.5253 · pith_short_12: QPTZ6LDPMFTG · pith_short_16: QPTZ6LDPMFTGMN54 · pith_short_8: QPTZ6LDP

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/QPTZ6LDPMFTGMN54ZWIWV7SYJE \
  | 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: 83e79f2c6f61666637bccd916afe5849226703b460b987861591664ba613d0e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccff2738067412f5189f2dff501f450fed9b02d5e31faea5fc705a572de1ac90",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-06-20T14:57:25Z",
    "title_canon_sha256": "cc93c45f2289939f9cbc04ee62f8aef0718a269b58f179a5716959f4b733e8c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5253",
    "kind": "arxiv",
    "version": 1
  }
}