Pith Number

pith:FP25SMIA

pith:2015:FP25SMIAYT6US25W7LHS4XQJOP

not attested not anchored not stored refs pending

Access to undergraduate research experiences at a large research university

Dimitri R. Dounas-Frazer, H. J. Lewandowski, S. 5 Hanshaw

arxiv:1507.03937 v1 · 2015-07-14 · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FP25SMIAYT6US25W7LHS4XQJOP}

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	2026-05-18T01:19:12.001895Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bf5d93100c4fd496bb6facf2e5e0973c3178fcc4abd1288969c84a178da16e4

Aliases

arxiv: 1507.03937 · arxiv_version: 1507.03937v1 · doi: 10.48550/arxiv.1507.03937 · pith_short_12: FP25SMIAYT6U · pith_short_16: FP25SMIAYT6US25W · pith_short_8: FP25SMIA

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/FP25SMIAYT6US25W7LHS4XQJOP \
  | 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: 2bf5d93100c4fd496bb6facf2e5e0973c3178fcc4abd1288969c84a178da16e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e01625d1180c264d60d060ad08e5d56e88a4b6271627dd2678f8af409c960f63",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-07-14T17:24:25Z",
    "title_canon_sha256": "53cbe51b9265c4d53c5d4907120e2e57befefabccbca2824466b5b719541409b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.03937",
    "kind": "arxiv",
    "version": 1
  }
}