Pith Number

pith:PJEUPJTG

pith:2015:PJEUPJTGASPGJKF6RCGAQWSFJQ

not attested not anchored not stored refs pending

An introduction to the New SI

Peter J. Mohr, Sandra Knotts, William D. Phillips

arxiv:1503.03496 v2 · 2015-03-11 · physics.ed-ph · physics.pop-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{PJEUPJTGASPGJKF6RCGAQWSFJQ}

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	2026-05-18T01:36:22.860066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a4947a666049e64a8be888c085a454c3786310451a484f7de31e367fb746e93

Aliases

arxiv: 1503.03496 · arxiv_version: 1503.03496v2 · doi: 10.48550/arxiv.1503.03496 · pith_short_12: PJEUPJTGASPG · pith_short_16: PJEUPJTGASPGJKF6 · pith_short_8: PJEUPJTG

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/PJEUPJTGASPGJKF6RCGAQWSFJQ \
  | 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: 7a4947a666049e64a8be888c085a454c3786310451a484f7de31e367fb746e93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a6ab53236a80215b67aa63a080e7194c58503aee8109cc5e9a252c7610454af",
    "cross_cats_sorted": [
      "physics.pop-ph"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2015-03-11T20:42:36Z",
    "title_canon_sha256": "be7ab50492ea3ebf98baa9bbe2aa5d7c84018a2827a43abad1466f4abfbaf474"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03496",
    "kind": "arxiv",
    "version": 2
  }
}