Pith Number

pith:4MA7PDYH

pith:2012:4MA7PDYHL5RRGBGE23R6PXFKDD

not attested not anchored not stored refs pending

Herschel observations of extended atomic gas in the core of the Perseus cluster

Alastair C. Edge, Andy C. Fabian, Christopher P. O'Dea, Francoise Combes, Gary J. Ferland, Grant R. Tremblay, Helen Russell, J. B. Raymond Oonk, John T. Whelan, Megan Donahue, Philippe Salome, Roderick M. Johnstone, Rupal Mittal, Stefi A. Baum

arxiv:1208.1730 v1 · 2012-08-08 · 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{4MA7PDYHL5RRGBGE23R6PXFKDD}

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	2026-05-18T01:55:17.489912Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e301f78f075f631304c4d6e3e7dcaa18f19ddcc5fad594a14c16d9da7d501d84

Aliases

arxiv: 1208.1730 · arxiv_version: 1208.1730v1 · doi: 10.48550/arxiv.1208.1730 · pith_short_12: 4MA7PDYHL5RR · pith_short_16: 4MA7PDYHL5RRGBGE · pith_short_8: 4MA7PDYH

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/4MA7PDYHL5RRGBGE23R6PXFKDD \
  | 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: e301f78f075f631304c4d6e3e7dcaa18f19ddcc5fad594a14c16d9da7d501d84

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e3d7f86b2518789e47983546da1e9d434c3a25764383282da9d9f19598390c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-08T18:37:29Z",
    "title_canon_sha256": "1856ada87fd60f83968d73c4a923d2c8f5683bee453adc157ad20e52d25bd696"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.1730",
    "kind": "arxiv",
    "version": 1
  }
}