Pith Number

pith:PY4SF2WN

pith:2019:PY4SF2WN5RMWM7KRBZ3S4XY6IF

not attested not anchored not stored refs pending

A semi-autonomous approach to connecting proprietary EHR standards to FHIR

Elizabeth I Sklar, Martin Chapman, Vasa Curcin

arxiv:1911.12254 v2 · 2019-11-27 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PY4SF2WN5RMWM7KRBZ3S4XY6IF}

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	2026-07-05T00:35:20.188885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e3922eacdec59667d510e772e5f1e416f234a7b20ba1ef8c2657c1c089fe59d

Aliases

arxiv: 1911.12254 · arxiv_version: 1911.12254v2 · doi: 10.48550/arxiv.1911.12254 · pith_short_12: PY4SF2WN5RMW · pith_short_16: PY4SF2WN5RMWM7KR · pith_short_8: PY4SF2WN

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/PY4SF2WN5RMWM7KRBZ3S4XY6IF \
  | 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: 7e3922eacdec59667d510e772e5f1e416f234a7b20ba1ef8c2657c1c089fe59d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d19e917eb299c63034f46429472e4f7a695ab95423039c7a093077e4104cc65a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2019-11-27T16:23:09Z",
    "title_canon_sha256": "9abe2f99bdff003c4df97db08e0c64c9bbbee8b3e7bdc992e8b55e5b6c621785"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.12254",
    "kind": "arxiv",
    "version": 2
  }
}