Pith Number

pith:MEWHPT6E

pith:1999:MEWHPT6EMWE5AMQOBKGNM3X4MJ

not attested not anchored not stored refs pending

A definitive heat of vaporization of silicon through benchmark ab initio calculations on SiF_4

Jan M.L. Martin, Peter R. Taylor

arxiv:physics/9902054 v1 · 1999-02-19 · physics.chem-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{MEWHPT6EMWE5AMQOBKGNM3X4MJ}

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	2026-05-18T01:03:45.308119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

612c77cfc46589d0320e0a8cd66efc626f1c458c84d7d267eb51e55ec53854b9

Aliases

arxiv: physics/9902054 · arxiv_version: physics/9902054v1 · doi: 10.48550/arxiv.physics/9902054 · pith_short_12: MEWHPT6EMWE5 · pith_short_16: MEWHPT6EMWE5AMQO · pith_short_8: MEWHPT6E

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/MEWHPT6EMWE5AMQOBKGNM3X4MJ \
  | 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: 612c77cfc46589d0320e0a8cd66efc626f1c458c84d7d267eb51e55ec53854b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a702e816a3f77e3bb3f2224c2e027b5f5ff637b02ae9b7b42217b2bb4b56392c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "1999-02-19T15:38:27Z",
    "title_canon_sha256": "def919da9a13e255a743355b417bcef7fa8d1ebab7ea54cc9c631ee12946b736"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/9902054",
    "kind": "arxiv",
    "version": 1
  }
}