Pith Number

pith:4E6ZQUFD

pith:2015:4E6ZQUFDGLGL5L7COFCQGCWKOR

not attested not anchored not stored refs pending

User Applications Driven by the Community Contribution Framework MPContribs in the Materials Project

Alpha N'Diaye, Dan Gunter, Donald Winston, Kristin Persson, Patrick Huck, Shreyas Cholia

arxiv:1510.05727 v1 · 2015-10-20 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4E6ZQUFDGLGL5L7COFCQGCWKOR}

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	2026-05-18T01:04:05.813271Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e13d9850a332ccbeafe27145030aca7470ea38be1a89dbc4b18241de636892b4

Aliases

arxiv: 1510.05727 · arxiv_version: 1510.05727v1 · doi: 10.48550/arxiv.1510.05727 · pith_short_12: 4E6ZQUFDGLGL · pith_short_16: 4E6ZQUFDGLGL5L7C · pith_short_8: 4E6ZQUFD

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/4E6ZQUFDGLGL5L7COFCQGCWKOR \
  | 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: e13d9850a332ccbeafe27145030aca7470ea38be1a89dbc4b18241de636892b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a74622cb7c8e3da952e314c608cd0f3222cb0088972e457561ee70718c9f2efa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2015-10-20T00:55:50Z",
    "title_canon_sha256": "713851b98ec2e749c91d3a0e95fce40ed4ea24b5219d170f0e8e270c37f690ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.05727",
    "kind": "arxiv",
    "version": 1
  }
}