Pith Number

pith:B62OK4HW

pith:2009:B62OK4HWF4HWXG3WUMNMB3RLX3

not attested not anchored not stored refs pending

Star-forming regions in the intragroup medium of compact groups of galaxies

B. Epinat, C. Mendes de Oliveira, D. F. de Mello, H. Plana, J. Iglesias-Paramo, P. Amram, S. Torres-Flores

arxiv:0912.4225 v1 · 2009-12-21 · 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{B62OK4HWF4HWXG3WUMNMB3RLX3}

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	2026-05-18T02:10:14.866624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fb4e570f62f0f6b9b76a31ac0ee2bbef595943ee7fd43542bc9444c1562121c

Aliases

arxiv: 0912.4225 · arxiv_version: 0912.4225v1 · doi: 10.48550/arxiv.0912.4225 · pith_short_12: B62OK4HWF4HW · pith_short_16: B62OK4HWF4HWXG3W · pith_short_8: B62OK4HW

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/B62OK4HWF4HWXG3WUMNMB3RLX3 \
  | 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: 0fb4e570f62f0f6b9b76a31ac0ee2bbef595943ee7fd43542bc9444c1562121c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aaeffd924a0454e9dc12d6cb90f053cb70aabb2b29d93d178d5edeb05b3d9236",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-21T18:34:32Z",
    "title_canon_sha256": "854763cb5bc210af0120e91b30a8a934e47ad75d9a2c797f5652a1853cc92d17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4225",
    "kind": "arxiv",
    "version": 1
  }
}