Pith Number

pith:F6GHWV6W

pith:2014:F6GHWV6W5NP24LJGR5EOGF44RH

not attested not anchored not stored refs pending

A Simple Method to Reduce Thermodynamic Derivatives by Computer

Jacques H.H. Perk

arxiv:1401.7728 v1 · 2014-01-09 · physics.comp-ph · physics.ed-ph · physics.hist-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{F6GHWV6W5NP24LJGR5EOGF44RH}

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	2026-05-18T02:59:33.783792Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f8c7b57d6eb5fae2d268f48e3179c89f15c783672144103ab519a1803a8df10

Aliases

arxiv: 1401.7728 · arxiv_version: 1401.7728v1 · doi: 10.48550/arxiv.1401.7728 · pith_short_12: F6GHWV6W5NP2 · pith_short_16: F6GHWV6W5NP24LJG · pith_short_8: F6GHWV6W

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/F6GHWV6W5NP24LJGR5EOGF44RH \
  | 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: 2f8c7b57d6eb5fae2d268f48e3179c89f15c783672144103ab519a1803a8df10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d856779fee921df62ef047030b5d58acfa7447f5137da0a15b14f420e5c5c3e",
    "cross_cats_sorted": [
      "physics.ed-ph",
      "physics.hist-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2014-01-09T20:13:37Z",
    "title_canon_sha256": "49cc32fd166dfd57f0eeeb7ee3546cd465810fd48bc4845e9a515082ba33c09f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.7728",
    "kind": "arxiv",
    "version": 1
  }
}