Pith Number

pith:E5OKRK2D

pith:2010:E5OKRK2DEDN6CM7SI2KX4OIIMI

not attested not anchored not stored refs pending

On the Binding Energy Parameter $\lambda$ of Common Envelope Evolution

Nanjing University), Xiang-Dong Li (Department of Astronomy, Xiao-jie Xu

arxiv:1004.4957 v1 · 2010-04-28 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E5OKRK2DEDN6CM7SI2KX4OIIMI}

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	2026-05-18T02:07:45.700960Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

275ca8ab4320dbe133f246957e3908623cddd1e3e845bdcef4c8f47f1cbe19c0

Aliases

arxiv: 1004.4957 · arxiv_version: 1004.4957v1 · doi: 10.48550/arxiv.1004.4957 · pith_short_12: E5OKRK2DEDN6 · pith_short_16: E5OKRK2DEDN6CM7S · pith_short_8: E5OKRK2D

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/E5OKRK2DEDN6CM7SI2KX4OIIMI \
  | 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: 275ca8ab4320dbe133f246957e3908623cddd1e3e845bdcef4c8f47f1cbe19c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c932ad462384ce2beab75176998c8c327ab1924b4a47d63e54a32226405384eb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-04-28T06:19:54Z",
    "title_canon_sha256": "2d9efadd35c7d4d0fb3f251bbe11a4879e5eb08ff15bb40e3bdee78e9a7091fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.4957",
    "kind": "arxiv",
    "version": 1
  }
}