Pith Number

pith:UQS4LDX3

pith:2013:UQS4LDX3WTAAFXOTYIW5DPCQVK

not attested not anchored not stored refs pending

Origin of a bottom-heavy stellar initial mass function in elliptical galaxies

Kenji Bekki

arxiv:1311.1633 v1 · 2013-11-07 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQS4LDX3WTAAFXOTYIW5DPCQVK}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T01:46:33.338687Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a425c58efbb4c002ddd3c22dd1bc50aaa12da2faebb5c219ef3cd5e6b4277331

Aliases

arxiv: 1311.1633 · arxiv_version: 1311.1633v1 · doi: 10.48550/arxiv.1311.1633 · pith_short_12: UQS4LDX3WTAA · pith_short_16: UQS4LDX3WTAAFXOT · pith_short_8: UQS4LDX3

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/UQS4LDX3WTAAFXOTYIW5DPCQVK \
  | 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: a425c58efbb4c002ddd3c22dd1bc50aaa12da2faebb5c219ef3cd5e6b4277331

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e6568ae7eff3885708361e09a40ec812afafae1cab698457064425ef6b20848",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-07T10:47:59Z",
    "title_canon_sha256": "bb0c1241742e70f1b38f650d81ee839fd5d62f1dfad10d7e97c082f0b84a3810"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.1633",
    "kind": "arxiv",
    "version": 1
  }
}