Pith Number

pith:4XMIZX5X

pith:2011:4XMIZX5XTHFD2UD4HQ2F7UDHWN

not attested not anchored not stored refs pending

Dynamical friction in a gaseous medium with a large-scale magnetic field

F. J. Sanchez-Salcedo

arxiv:1111.6632 v1 · 2011-11-28 · astro-ph.CO · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4XMIZX5XTHFD2UD4HQ2F7UDHWN}

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	2026-05-18T01:59:22.511200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5d88cdfb799ca3d507c3c345fd067b379f3724e3882f16687ec4d6b82792371

Aliases

arxiv: 1111.6632 · arxiv_version: 1111.6632v1 · doi: 10.48550/arxiv.1111.6632 · pith_short_12: 4XMIZX5XTHFD · pith_short_16: 4XMIZX5XTHFD2UD4 · pith_short_8: 4XMIZX5X

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/4XMIZX5XTHFD2UD4HQ2F7UDHWN \
  | 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: e5d88cdfb799ca3d507c3c345fd067b379f3724e3882f16687ec4d6b82792371

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b2943a1004a822c959fea4ea671a383f5e80c376696df4021576c70148cc269",
    "cross_cats_sorted": [
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-28T22:02:55Z",
    "title_canon_sha256": "38d12fc3b0bf7f2bd8feb0f0a7443e66582f6caaee2664f40f52f67580a7c7cd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.6632",
    "kind": "arxiv",
    "version": 1
  }
}