Pith Number

pith:45YJCOLU

pith:2009:45YJCOLU6BLYTDPQKX7V7GNPXC

not attested not anchored not stored refs pending

An analytic column density profile to fit prestellar cores

Shantanu Basu, Wolf B. Dapp

arxiv:0902.1779 v2 · 2009-02-10 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{45YJCOLU6BLYTDPQKX7V7GNPXC}

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	2026-05-18T03:15:45.773091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e770913974f057898df055ff5f99afb8aba5ece2e5c715c79a28923dc5000b0b

Aliases

arxiv: 0902.1779 · arxiv_version: 0902.1779v2 · doi: 10.48550/arxiv.0902.1779 · pith_short_12: 45YJCOLU6BLY · pith_short_16: 45YJCOLU6BLYTDPQ · pith_short_8: 45YJCOLU

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/45YJCOLU6BLYTDPQKX7V7GNPXC \
  | 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: e770913974f057898df055ff5f99afb8aba5ece2e5c715c79a28923dc5000b0b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8275439630cf96e9f50b72be635e188dfe000eb3caded512fa9536ebae014bb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-02-10T23:47:10Z",
    "title_canon_sha256": "2156c4b6277dd765a26c642a5f2de68e589540fdb461ea6f7615a8375c64dca4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1779",
    "kind": "arxiv",
    "version": 2
  }
}