Pith Number

pith:4C3AUP4Q

pith:2011:4C3AUP4QUEPSO6SOJTIG6WT6RO

not attested not anchored not stored refs pending

Analyzing the Persistence of Referenced Web Resources with Memento

Herbert Van de Sompel, Mark Phillips, Robert Sanderson

arxiv:1105.3459 v1 · 2011-05-17 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4C3AUP4QUEPSO6SOJTIG6WT6RO}

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	2026-05-18T04:22:00.007219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0b60a3f90a11f277a4e4cd06f5a7e8bb7dfded167c49204fc9cd94c3cb7b919

Aliases

arxiv: 1105.3459 · arxiv_version: 1105.3459v1 · doi: 10.48550/arxiv.1105.3459 · pith_short_12: 4C3AUP4QUEPS · pith_short_16: 4C3AUP4QUEPSO6SO · pith_short_8: 4C3AUP4Q

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/4C3AUP4QUEPSO6SOJTIG6WT6RO \
  | 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: e0b60a3f90a11f277a4e4cd06f5a7e8bb7dfded167c49204fc9cd94c3cb7b919

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7b31c25ddf5719e842d2bf2b3d9786c4d5bec346bb126a2e773a1059f51ce83",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2011-05-17T19:21:46Z",
    "title_canon_sha256": "61e1f8a5033b9e717ea488fc8b2f0b2839e0b364f8f0b25cd94dbea7b548a524"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.3459",
    "kind": "arxiv",
    "version": 1
  }
}