Pith Number

pith:YM7IX3ZL

pith:2009:YM7IX3ZLB5SSCVQGGSTHUAVO4K

not attested not anchored not stored refs pending

A multiwavelength study of the star forming region IRAS 18544+0112

G. Castelletti, G. Dubner, M. E. Ortega, M. Rubio, S. Cichowolski, S. Paron

arxiv:0912.1837 v1 · 2009-12-09 · 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{YM7IX3ZLB5SSCVQGGSTHUAVO4K}

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	2026-05-18T02:10:25.137042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c33e8bef2b0f6521560634a67a02aee2be8ed819755fa5abbaa782d51f09d26d

Aliases

arxiv: 0912.1837 · arxiv_version: 0912.1837v1 · doi: 10.48550/arxiv.0912.1837 · pith_short_12: YM7IX3ZLB5SS · pith_short_16: YM7IX3ZLB5SSCVQG · pith_short_8: YM7IX3ZL

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/YM7IX3ZLB5SSCVQGGSTHUAVO4K \
  | 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: c33e8bef2b0f6521560634a67a02aee2be8ed819755fa5abbaa782d51f09d26d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a73ca2f88336ea469fc38696d44ae8d85aa19885f0d25d5ed94fa4e6ff2a292",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-12-09T19:04:48Z",
    "title_canon_sha256": "c72be8d29b2d6253136aa1139e2301793e537bfb2b6160f0dc34b2c51ce80655"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1837",
    "kind": "arxiv",
    "version": 1
  }
}