Pith Number

pith:TG5MAL62

pith:2010:TG5MAL62TTUPTYHR7DJXL7DCD5

not attested not anchored not stored refs pending

L1448 IRS2E: A candidate first hydrostatic core

(2) Harvard-Smithsonian Center for Astrophysics, (3) Max Planck Institute for Astronomy), Hector G. Arce (1), Markus Schmalz (3), Qizhou Zhang (2), Ralf Launhardt (3), Thomas Henning(3) ((1) Yale Astronomy Department, Tyler L. Bourke (2), Xuepeng Chen (1)

arxiv:1004.2443 v1 · 2010-04-14 · 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{TG5MAL62TTUPTYHR7DJXL7DCD5}

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	2026-05-18T02:08:05.628593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99bac02fda9ce8f9e0f1f8d375fc621f7bf839b1c447dc46e163f2d75ab1d171

Aliases

arxiv: 1004.2443 · arxiv_version: 1004.2443v1 · doi: 10.48550/arxiv.1004.2443 · pith_short_12: TG5MAL62TTUP · pith_short_16: TG5MAL62TTUPTYHR · pith_short_8: TG5MAL62

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/TG5MAL62TTUPTYHR7DJXL7DCD5 \
  | 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: 99bac02fda9ce8f9e0f1f8d375fc621f7bf839b1c447dc46e163f2d75ab1d171

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c61e81101ce46a43ea66772c22e3db93625fab7310276ae42e4973efde97157b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-04-14T16:31:52Z",
    "title_canon_sha256": "552a32298b4db3051a0588e4ea13f0b3621b2afc2bc95af1a17f89cf60a87264"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2443",
    "kind": "arxiv",
    "version": 1
  }
}