Pith Number

pith:EMYYTH6Z

pith:2010:EMYYTH6ZZGW4YUIM256T3WVN57

not attested not anchored not stored refs pending

The Hot Interstellar Medium of the Interacting Galaxy NGC 4490

A. J. Richings, G. Fabbiano, Junfeng Wang, T. P. Roberts

arxiv:1009.4396 v1 · 2010-09-22 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EMYYTH6ZZGW4YUIM256T3WVN57}

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	2026-05-18T02:05:18.559074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2331899fd9c9adcc510cd77d3ddaadefcd389579f0b2003c74d97e82f0973e38

Aliases

arxiv: 1009.4396 · arxiv_version: 1009.4396v1 · doi: 10.48550/arxiv.1009.4396 · pith_short_12: EMYYTH6ZZGW4 · pith_short_16: EMYYTH6ZZGW4YUIM · pith_short_8: EMYYTH6Z

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/EMYYTH6ZZGW4YUIM256T3WVN57 \
  | 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: 2331899fd9c9adcc510cd77d3ddaadefcd389579f0b2003c74d97e82f0973e38

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f54a37f0f80debc5ff8191b5d5bd12d76245f2b815b21b94271ff0fab90cb0a4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-09-22T15:55:04Z",
    "title_canon_sha256": "6ec4a5ab2bc02694bc8158d094cd39f4beea1475b6e8e6bb5e459727e0d95447"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.4396",
    "kind": "arxiv",
    "version": 1
  }
}