Pith Number

pith:LTQQ5ZVT

pith:2019:LTQQ5ZVT5NT33RNDGKF2J6YYFN

not attested not anchored not stored refs pending

Dust opacity variations in the pre-stellar core L1544

A. Chacon-Tanarro, A. I. Gomez-Ruiz, B. S. Mason, C. E. Romero, D. Sanchez-Arguelles, J. E. Pineda, J. Harju, J. Sievers, L. Bizzocchi, M. Devlin, P. Caselli, R. A. Gutermuth, S. Offner, S. R. Dicker, S. Stanchfield, T. Mroczkowski

arxiv:1901.02476 v1 · 2019-01-08 · astro-ph.GA · 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{LTQQ5ZVT5NT33RNDGKF2J6YYFN}

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	2026-05-17T23:50:56.168931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ce10ee6b3eb67bdc5a3328ba4fb182b48e83cff56d4168c3c459fd9d5d6bef2

Aliases

arxiv: 1901.02476 · arxiv_version: 1901.02476v1 · doi: 10.48550/arxiv.1901.02476 · pith_short_12: LTQQ5ZVT5NT3 · pith_short_16: LTQQ5ZVT5NT33RND · pith_short_8: LTQQ5ZVT

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/LTQQ5ZVT5NT33RNDGKF2J6YYFN \
  | 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: 5ce10ee6b3eb67bdc5a3328ba4fb182b48e83cff56d4168c3c459fd9d5d6bef2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b06e13bfd51ba3e9c7ca43dc4648647bf3322bbd64285ad9839cf8b04d48b219",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-08T19:32:33Z",
    "title_canon_sha256": "6e6c2acceaa6daed0b2dc906dfa4561bf17f8f550781c2b03fb39668a1bd7c56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.02476",
    "kind": "arxiv",
    "version": 1
  }
}