Pith Number

pith:XPQ7UOQF

pith:2015:XPQ7UOQFY6WWWKCDY5FSB6IW6Q

not attested not anchored not stored refs pending

The Panchromatic Hubble Andromeda Treasury XI: The Spatially-Resolved Recent Star Formation History of M31

Adam K. Leroy, Alexia R. Lewis, Andreas Schruba, Andrew E. Dolphin, Anil C. Seth, Antonela Monachesi, Benjamin F. Williams, Daniel R. Weisz, Eric F. Bell, Evan D. Skillman, Hans-Walter Rix, Jacob E. Simones, Jason S. Kalirai, Julianne J. Dalcanton, Lent C. Johnson, Morgan Fouesneau, Puragra Guhathakurta, Yumi Choi

arxiv:1504.03338 v1 · 2015-04-13 · 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{XPQ7UOQFY6WWWKCDY5FSB6IW6Q}

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	2026-05-18T01:55:32.104676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbe1fa3a05c7ad6b2843c74b20f916f41975e267059abc14c960b6807e882b41

Aliases

arxiv: 1504.03338 · arxiv_version: 1504.03338v1 · doi: 10.48550/arxiv.1504.03338 · pith_short_12: XPQ7UOQFY6WW · pith_short_16: XPQ7UOQFY6WWWKCD · pith_short_8: XPQ7UOQF

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/XPQ7UOQFY6WWWKCDY5FSB6IW6Q \
  | 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: bbe1fa3a05c7ad6b2843c74b20f916f41975e267059abc14c960b6807e882b41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f6aadbfaf39cb645e1867fc9e53d46bb3872841ceeda81d0f758c04b64f3bbf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-13T20:01:32Z",
    "title_canon_sha256": "e2cd8e66b1382ea37292b12e8fd2ed33f5cfbf5b115354317d6a385bfea9a735"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03338",
    "kind": "arxiv",
    "version": 1
  }
}