Pith Number

pith:IN3L5QUX

pith:2005:IN3L5QUXKZCFKKM63GKOBMNHD6

not attested not anchored not stored refs pending

Photon dominated regions in the spiral arms of M83 and M51

B. Mookerjea, C. Kramer, E. Bayet, F.P. Israel, J.G.A. Wouterloot, J. Stutzki, M. Gerin, S. Garcia-Burillo

arxiv:astro-ph/0505627 v2 · 2005-05-31 · 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{IN3L5QUXKZCFKKM63GKOBMNHD6}

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	2026-07-04T16:52:28.465071Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4376bec297564455299ed994e0b1a71f98f492bc40fdfd7d6827931f2549faff

Aliases

arxiv: astro-ph/0505627 · arxiv_version: astro-ph/0505627v2 · doi: 10.48550/arxiv.astro-ph/0505627 · pith_short_12: IN3L5QUXKZCF · pith_short_16: IN3L5QUXKZCFKKM6 · pith_short_8: IN3L5QUX

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/IN3L5QUXKZCFKKM63GKOBMNHD6 \
  | 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: 4376bec297564455299ed994e0b1a71f98f492bc40fdfd7d6827931f2549faff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d20ac6365e62662234d63db95149f452f03cdf8f30297b0bfd09ff5ca4936eac",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-05-31T17:04:18Z",
    "title_canon_sha256": "02bc4f7bc64e4275e6260049abe828272ac2abafef0b2d1d571396767d2d5cf7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0505627",
    "kind": "arxiv",
    "version": 2
  }
}