Pith Number

pith:HUNRDI5N

pith:2012:HUNRDI5NYNCNU3RSVS3VAIAZIV

not attested not anchored not stored refs pending

Testing Coverage Functions

Deeparnab Chakrabarty, Zhiyi Huang

arxiv:1205.1587 v1 · 2012-05-08 · cs.DS · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HUNRDI5NYNCNU3RSVS3VAIAZIV}

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	2026-05-18T03:56:09.893813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3d1b11a3adc344da6e32acb7502019454e993092338828f4dd38b6c9863beb5d

Aliases

arxiv: 1205.1587 · arxiv_version: 1205.1587v1 · doi: 10.48550/arxiv.1205.1587 · pith_short_12: HUNRDI5NYNCN · pith_short_16: HUNRDI5NYNCNU3RS · pith_short_8: HUNRDI5N

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/HUNRDI5NYNCNU3RSVS3VAIAZIV \
  | 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: 3d1b11a3adc344da6e32acb7502019454e993092338828f4dd38b6c9863beb5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d96ae2659f987ca1808f974bdcc9865c287e807f4365526cba1d177e74a2388",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-05-08T04:02:42Z",
    "title_canon_sha256": "4cdbd7666ce35b1ee3d7a514beda6ab8961c9519230f090f1d8f9d22fa1cef0f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.1587",
    "kind": "arxiv",
    "version": 1
  }
}