Pith Number

pith:ZQGEUOB3

pith:2009:ZQGEUOB3AXPQQUTRDEG5WNXZYL

not attested not anchored not stored refs pending

Drag forces in classical fields

David S. Dean, Vincent Demery

arxiv:0912.2904 v2 · 2009-12-15 · 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{ZQGEUOB3AXPQQUTRDEG5WNXZYL}

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	2026-05-18T04:05:27.984505Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc0c4a383b05df085271190ddb36f9c2c0c787cb87ba08a8b19b56b8f40f0d1d

Aliases

arxiv: 0912.2904 · arxiv_version: 0912.2904v2 · doi: 10.48550/arxiv.0912.2904 · pith_short_12: ZQGEUOB3AXPQ · pith_short_16: ZQGEUOB3AXPQQUTR · pith_short_8: ZQGEUOB3

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/ZQGEUOB3AXPQQUTRDEG5WNXZYL \
  | 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: cc0c4a383b05df085271190ddb36f9c2c0c787cb87ba08a8b19b56b8f40f0d1d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3be45cfe2d2a8355fc1cc8c00158fc9f3b87b4b34715f8c23d28266b1b0f0f8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2009-12-15T14:26:33Z",
    "title_canon_sha256": "e103f60de8c1bcf94be34be4994de5d605b246c768f364f0a16befa569a3dacd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2904",
    "kind": "arxiv",
    "version": 2
  }
}