Pith Number

pith:IRRX3FBI

pith:2005:IRRX3FBI3RHAAER3XZSR7VO6SC

not attested not anchored not stored refs pending

Alice in a micro-factory: modeling materials and mechanisms of natural nano-machines

Debashish Chowdhury

arxiv:physics/0505107 v3 · 2005-05-16 · physics.bio-ph · cond-mat.stat-mech · physics.pop-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{IRRX3FBI3RHAAER3XZSR7VO6SC}

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	2026-07-04T15:52:48.275443Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44637d9428dc4e00123bbe651fd5de908eb27c2191375fb139596d5b1902980a

Aliases

arxiv: physics/0505107 · arxiv_version: physics/0505107v3 · doi: 10.48550/arxiv.physics/0505107 · pith_short_12: IRRX3FBI3RHA · pith_short_16: IRRX3FBI3RHAAER3 · pith_short_8: IRRX3FBI

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/IRRX3FBI3RHAAER3XZSR7VO6SC \
  | 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: 44637d9428dc4e00123bbe651fd5de908eb27c2191375fb139596d5b1902980a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "64218bce485319c943bfbdf4f692bbbe29f41fd3e0d4a994c93fd209b1f7f0a6",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "physics.pop-ph"
    ],
    "license": "",
    "primary_cat": "physics.bio-ph",
    "submitted_at": "2005-05-16T09:18:51Z",
    "title_canon_sha256": "0fbbd0521bc67f716060f7858fb4c3329d288e1e5c277c9e5db1e31abf1b7e7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0505107",
    "kind": "arxiv",
    "version": 3
  }
}