Pith Number

pith:NBYVBOHY

pith:2019:NBYVBOHYWXELSBIMHD5UXKQZA2

not attested not anchored not stored refs pending

Design, Analysis, Tools, and Apprenticeship (DATA) Lab

Kelsey M. Funkhouser, Marcos Caballero, Rachel Henderson, William Martinez

arxiv:1904.01713 v1 · 2019-04-03 · 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{NBYVBOHYWXELSBIMHD5UXKQZA2}

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	2026-05-17T23:41:02.188361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

687150b8f8b5c8b9050c38fb4baa1906bb82187691b0407bafc182964ca232cd

Aliases

arxiv: 1904.01713 · arxiv_version: 1904.01713v1 · doi: 10.48550/arxiv.1904.01713 · pith_short_12: NBYVBOHYWXEL · pith_short_16: NBYVBOHYWXELSBIM · pith_short_8: NBYVBOHY

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/NBYVBOHYWXELSBIMHD5UXKQZA2 \
  | 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: 687150b8f8b5c8b9050c38fb4baa1906bb82187691b0407bafc182964ca232cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "849789b4ae66ecd581d8a5588c2a5a58d1434b5681fc0706dd6a01934d5a52a4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2019-04-03T00:08:34Z",
    "title_canon_sha256": "25e547e94e32127980cac1645839c2c981536e25f18fa156c202b6e908eff3d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01713",
    "kind": "arxiv",
    "version": 1
  }
}