Pith Number

pith:GHQ33JYR

pith:2013:GHQ33JYRVQPT3YL62DMJPXGAAA

not attested not anchored not stored refs pending

Gravitational Infall onto Molecular Filaments II. Externally Pressurized Cylinders

Fabian Heitsch

arxiv:1308.5637 v1 · 2013-08-26 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GHQ33JYRVQPT3YL62DMJPXGAAA}

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	2026-05-18T01:47:58.402422Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31e1bda711ac1f3de17ed0d897dcc0003ba5e3bbd27dea407541a32cead97a87

Aliases

arxiv: 1308.5637 · arxiv_version: 1308.5637v1 · doi: 10.48550/arxiv.1308.5637 · pith_short_12: GHQ33JYRVQPT · pith_short_16: GHQ33JYRVQPT3YL6 · pith_short_8: GHQ33JYR

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/GHQ33JYRVQPT3YL62DMJPXGAAA \
  | 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: 31e1bda711ac1f3de17ed0d897dcc0003ba5e3bbd27dea407541a32cead97a87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7ac8ffbf3e5a0ee588cd1a0f26981607b5f851b54b80d9b86a28880d0ebccb8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-08-26T16:57:09Z",
    "title_canon_sha256": "e4d83ba725704bbd118dc5e2a6807421847d09692f21f48e239a4494560ab137"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.5637",
    "kind": "arxiv",
    "version": 1
  }
}