Pith Number

pith:M27JE42W

pith:2010:M27JE42WK4Q65K6ZOAJOEDMFPD

not attested not anchored not stored refs pending

Formation, Evolution and Properties of Isolated Field Elliptical Galaxies

Enn Saar, Pasi Nurmi, Pekka Hein\"am\"aki, Sami-Matias Niemi

arxiv:1002.0847 v1 · 2010-02-03 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M27JE42WK4Q65K6ZOAJOEDMFPD}

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	2026-05-18T02:09:19.942549Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66be9273565721eeabd97012e20d8578eed2761945a637f3867a8d90943223fe

Aliases

arxiv: 1002.0847 · arxiv_version: 1002.0847v1 · doi: 10.48550/arxiv.1002.0847 · pith_short_12: M27JE42WK4Q6 · pith_short_16: M27JE42WK4Q65K6Z · pith_short_8: M27JE42W

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/M27JE42WK4Q65K6ZOAJOEDMFPD \
  | 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: 66be9273565721eeabd97012e20d8578eed2761945a637f3867a8d90943223fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e589dad159dd856d098cfa68a0c4c8656a0c5d78edd701b508bec977ef33b54",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-02-03T23:48:02Z",
    "title_canon_sha256": "3c1b5a35c43d2c5dc7a8a4e24dead2541e7b69fe2293b231533f88cb21820893"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.0847",
    "kind": "arxiv",
    "version": 1
  }
}