Pith Number

pith:W54NKJVP

pith:2016:W54NKJVPS73KUBPTCP3WX3T3LL

not attested not anchored not stored refs pending

"What is The SI?" A Proposal for an Educational Adjunct to the SI Redefinition

David B. Newell, Neil M. Zimmerman

arxiv:1611.05313 v1 · 2016-11-16 · 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{W54NKJVPS73KUBPTCP3WX3T3LL}

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	2026-05-18T00:58:27.379187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b778d526af97f6aa05f313f76bee7b5ac5ad5e65c267ec312ef0b34eb7a999a2

Aliases

arxiv: 1611.05313 · arxiv_version: 1611.05313v1 · doi: 10.48550/arxiv.1611.05313 · pith_short_12: W54NKJVPS73K · pith_short_16: W54NKJVPS73KUBPT · pith_short_8: W54NKJVP

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/W54NKJVPS73KUBPTCP3WX3T3LL \
  | 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: b778d526af97f6aa05f313f76bee7b5ac5ad5e65c267ec312ef0b34eb7a999a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ac5adebad7c39e4fcfbfdacb2ae00c8429f266fff3b233a0cbc8a5e7c2299ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ed-ph",
    "submitted_at": "2016-11-16T15:22:16Z",
    "title_canon_sha256": "35c1591121add43419935a041ba2d762f9cecb19314a9e447de5a8f952098622"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.05313",
    "kind": "arxiv",
    "version": 1
  }
}