Pith Number

pith:27EN5EOA

pith:2004:27EN5EOAS7AI5MVMEDYFSTQ7I2

not attested not anchored not stored refs pending

Photon-Dominated Chemistry in the Nucleus of M82: Widespread HOC+ emission in the inner 650 pc disk

A. Fuente, A. Usero, D. Teyssier, J.R. Rizzo, M. Gerin, P. de Vicente, S. Garcia-Burillo

arxiv:astro-ph/0412361 v1 · 2004-12-15 · 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{27EN5EOAS7AI5MVMEDYFSTQ7I2}

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	2026-07-04T16:45:25.094334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d7c8de91c097c08eb2ac20f0594e1f46b4bb0ff522fe3c93ba6909a6d734ba6b

Aliases

arxiv: astro-ph/0412361 · arxiv_version: astro-ph/0412361v1 · doi: 10.48550/arxiv.astro-ph/0412361 · pith_short_12: 27EN5EOAS7AI · pith_short_16: 27EN5EOAS7AI5MVM · pith_short_8: 27EN5EOA

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/27EN5EOAS7AI5MVMEDYFSTQ7I2 \
  | 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: d7c8de91c097c08eb2ac20f0594e1f46b4bb0ff522fe3c93ba6909a6d734ba6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "053e57ce58e425b914ccc034000ea36141eae2da71eb4b707b7bbafe718313d7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-15T09:30:07Z",
    "title_canon_sha256": "fe0c636701cc020f3522d40f7636955fca04756715f592e40e90aab605eb7c1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412361",
    "kind": "arxiv",
    "version": 1
  }
}