Pith Number

pith:FZAHKUMJ

pith:2013:FZAHKUMJASN4A5UCPSLNA7P5LP

not attested not anchored not stored refs pending

Conditions for building a community of practice in an advanced physics laboratory

Eleanor C. Sayre, Paul W. Irving

arxiv:1312.1953 v1 · 2013-12-06 · 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{FZAHKUMJASN4A5UCPSLNA7P5LP}

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	2026-05-18T01:45:57.730543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e40755189049bc076827c96d07dfd5bd941c26b0cc31031b4000ed888dc2ba6

Aliases

arxiv: 1312.1953 · arxiv_version: 1312.1953v1 · doi: 10.48550/arxiv.1312.1953 · pith_short_12: FZAHKUMJASN4 · pith_short_16: FZAHKUMJASN4A5UC · pith_short_8: FZAHKUMJ

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/FZAHKUMJASN4A5UCPSLNA7P5LP \
  | 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: 2e40755189049bc076827c96d07dfd5bd941c26b0cc31031b4000ed888dc2ba6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "413043821ebc0e8b5d2d43083508dc838180947234e4b9aba9e79e083b1d903d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2013-12-06T18:40:14Z",
    "title_canon_sha256": "555f7088b45cad649bfedaed2dec68f86ebe9d838051e9ae2963d08ee9204c51"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.1953",
    "kind": "arxiv",
    "version": 1
  }
}