Pith Number

pith:LFEW75P7

pith:2011:LFEW75P73GWBD6D6VT2FHXUXCQ

not attested not anchored not stored refs pending

A Spitzer-IRS Detection of Crystalline Silicates in a Protostellar Envelope

Babar Ali, Benjamin A. Sargent, Charles A. Poteet, Dan M. Watson, Elise Furlan, Ian S. Remming, James Muzerolle, John J. Tobin, Jon E. Bjorkman, Lee Hartmann, Lori E. Allen, Melissa K. McClure, Nuria Calvet, S. Thomas Megeath, William J. Fischer

arxiv:1104.4498 v1 · 2011-04-22 · 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{LFEW75P73GWBD6D6VT2FHXUXCQ}

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	2026-05-18T02:02:15.987115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59496ff5ffd9ac11f87eacf453de97143dc7210716e0e603325eb53f0bfbb42b

Aliases

arxiv: 1104.4498 · arxiv_version: 1104.4498v1 · doi: 10.48550/arxiv.1104.4498 · pith_short_12: LFEW75P73GWB · pith_short_16: LFEW75P73GWBD6D6 · pith_short_8: LFEW75P7

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/LFEW75P73GWBD6D6VT2FHXUXCQ \
  | 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: 59496ff5ffd9ac11f87eacf453de97143dc7210716e0e603325eb53f0bfbb42b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e154003e7414b790fca46976e322c848fd20483a3efe289d68de1e6df08b1b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-04-22T20:00:02Z",
    "title_canon_sha256": "71288db9b0a852277698016363fcd9a02a3e4813c831d4eeeb07f4a8a31ac2fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.4498",
    "kind": "arxiv",
    "version": 1
  }
}