Pith Number

pith:3DYPKFES

pith:2003:3DYPKFESGKFHJBQSA5KMTXT3OC

not attested not anchored not stored refs pending

Cloud Structure and Physical Conditions in Star-forming Regions from Optical Observations. I. Data and Component Structure

D. E. Welty, K. Cunha, K. Pan, S. R. Federman, V. V. Smith

arxiv:astro-ph/0312095 v1 · 2003-12-03 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3DYPKFESGKFHJBQSA5KMTXT3OC}

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	2026-07-04T16:37:55.960139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8f0f51492328a7486120754c9de7b708913df818283539e2b185eb7aacc2c0a

Aliases

arxiv: astro-ph/0312095 · arxiv_version: astro-ph/0312095v1 · doi: 10.48550/arxiv.astro-ph/0312095 · pith_short_12: 3DYPKFESGKFH · pith_short_16: 3DYPKFESGKFHJBQS · pith_short_8: 3DYPKFES

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/3DYPKFESGKFHJBQSA5KMTXT3OC \
  | 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: d8f0f51492328a7486120754c9de7b708913df818283539e2b185eb7aacc2c0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e47c244d2928b5a4d1d6276dc0f5111d088c14911f6b1937f440447f8da0a00c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-03T17:04:28Z",
    "title_canon_sha256": "1c6d1fda10b94abb59e604290bf5965eca87a8547ab375e35d64dcb7e199cdfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312095",
    "kind": "arxiv",
    "version": 1
  }
}