Pith Number

pith:M4ZSIPBH

pith:2018:M4ZSIPBHO4BEQJ42WWYHKJRCTA

not attested not anchored not stored refs pending

The power of being explicit: demystifying work, heat, and free energy in the physics of computation

Pieter Rein ten Wolde, Rory A. Brittain, Thomas E Ouldridge

arxiv:1812.09572 v2 · 2018-12-22 · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M4ZSIPBHO4BEQJ42WWYHKJRCTA}

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	2026-05-17T23:57:21.060179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6733243c27770248279ab5b0752622980109e781e32be303f72eda04d745c33c

Aliases

arxiv: 1812.09572 · arxiv_version: 1812.09572v2 · doi: 10.48550/arxiv.1812.09572 · pith_short_12: M4ZSIPBHO4BE · pith_short_16: M4ZSIPBHO4BEQJ42 · pith_short_8: M4ZSIPBH

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/M4ZSIPBHO4BEQJ42WWYHKJRCTA \
  | 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: 6733243c27770248279ab5b0752622980109e781e32be303f72eda04d745c33c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3168a05ca3741b1231cc8345d86992d272b2856b5d39399b8ea38014e4bb033",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2018-12-22T17:38:23Z",
    "title_canon_sha256": "a7336e0f842a4f6f7924b6a3e4a31764367dec348cadc8c5276c220c71dad912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.09572",
    "kind": "arxiv",
    "version": 2
  }
}