Pith Number

pith:I6AJMLI3

pith:2007:I6AJMLI33JEFVXDPFKU3TRWNZT

not attested not anchored not stored refs pending

Relativistic dynamical friction in a collisional fluid

Enrico Barausse (SISSA, Italy)

arxiv:0709.0211 v2 · 2007-09-03 · astro-ph · gr-qc · 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{I6AJMLI33JEFVXDPFKU3TRWNZT}

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	2026-07-04T15:28:32.227954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4780962d1bda485adc6f2aa9b9c6cdccf72a83dd52f2d999ff03e790ff93d0f3

Aliases

arxiv: 0709.0211 · arxiv_version: 0709.0211v2 · doi: 10.48550/arxiv.0709.0211 · pith_short_12: I6AJMLI33JEF · pith_short_16: I6AJMLI33JEFVXDP · pith_short_8: I6AJMLI3

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/I6AJMLI33JEFVXDPFKU3TRWNZT \
  | 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: 4780962d1bda485adc6f2aa9b9c6cdccf72a83dd52f2d999ff03e790ff93d0f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d487f327866a4f233a1eea402efd0edffb7f9434ff049332db85e8e18fd7beed",
    "cross_cats_sorted": [
      "gr-qc",
      "physics.flu-dyn"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-03T12:54:54Z",
    "title_canon_sha256": "4fae46603f6080da3a4ce1fc02c81e94bb916a06f2ad950930d0b3cbec2a906e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.0211",
    "kind": "arxiv",
    "version": 2
  }
}