Pith Number

pith:EN4Q267U

pith:2004:EN4Q267UZJJMKPU3N7MWWAIBXD

not attested not anchored not stored refs pending

Chandra Observation of the Trifid Nebula: X-ray emission from the O star complex and actively forming pre-main sequence stars

B. Lefloch (LAGO, France), J. Rho, K. Hamaguchi (NASA/GSFC), M.F. Corcoran, S. Ramirez (SSC/Caltech)

arxiv:astro-ph/0401377 v1 · 2004-01-19 · 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{EN4Q267UZJJMKPU3N7MWWAIBXD}

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	2026-07-04T16:42:52.384730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23790d7bf4ca52c53e9b6fd96b0101b8c8dfc11b12fc9389952cc949ca9b616a

Aliases

arxiv: astro-ph/0401377 · arxiv_version: astro-ph/0401377v1 · doi: 10.48550/arxiv.astro-ph/0401377 · pith_short_12: EN4Q267UZJJM · pith_short_16: EN4Q267UZJJMKPU3 · pith_short_8: EN4Q267U

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/EN4Q267UZJJMKPU3N7MWWAIBXD \
  | 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: 23790d7bf4ca52c53e9b6fd96b0101b8c8dfc11b12fc9389952cc949ca9b616a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d96dbfa090138a8f85b3fa380bb5dc4be383fad62c50ca0ddb688e488c3eef17",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-19T23:44:15Z",
    "title_canon_sha256": "ecf16810324475cad65434f49408b695046028a76a756aaa1e734c639d231dd2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401377",
    "kind": "arxiv",
    "version": 1
  }
}