Pith Number

pith:SHVDWC5O

pith:2015:SHVDWC5OSG7GLND5IGY3S334E2

not attested not anchored not stored refs pending

A Global Star Forming Episode in M31 2-4 Gyr Ago

Alexia R. Lewis, Andrew E. Dolphin, Antonela Monachesi, Benjamin F. Williams, Daniel R. Weisz, Dustin Lang, Eric F. Bell, Evan Skillman, Julianne J. Dalcanton, Karoline M. Gilbert, Martha Boyer, Morgan Fouesneau

arxiv:1504.02120 v1 · 2015-04-08 · 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{SHVDWC5OSG7GLND5IGY3S334E2}

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.

Cited by

1 paper in Pith

Co-evolution of Supermassive Black Holes and their Host L* galaxies: implications for Milky Way and M31

Receipt and verification

First computed	2026-05-18T01:55:00.934411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91ea3b0bae91be65b47d41b1b96f7c269bf99df90eca01c5077bbebaa3551203

Aliases

arxiv: 1504.02120 · arxiv_version: 1504.02120v1 · doi: 10.48550/arxiv.1504.02120 · pith_short_12: SHVDWC5OSG7G · pith_short_16: SHVDWC5OSG7GLND5 · pith_short_8: SHVDWC5O

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/SHVDWC5OSG7GLND5IGY3S334E2 \
  | 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: 91ea3b0bae91be65b47d41b1b96f7c269bf99df90eca01c5077bbebaa3551203

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2289b08e239e6d27ee808a66f8f3885821f76a46f272f3cabbd632f992355a57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-08T20:33:51Z",
    "title_canon_sha256": "b7c1c7aca0f2ad0601bd1de682d317ffa45bc74d4d2996207d738ab16815c0af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02120",
    "kind": "arxiv",
    "version": 1
  }
}