Pith Number

pith:CQO5FBA7

pith:2015:CQO5FBA7FGULHTSZANMOAEG256

not attested not anchored not stored refs pending

A Spectroscopic and Photometric Exploration of the C/M Ratio in the Disk of M31

Alexia R. Lewis, Anil C. Seth, Benjamin F. Williams, Claire E. Dorman, Constance M. Rockosi, Daniel R. Weisz, Dylan Gregersen, Elisa Toloba, Graeme H. Smith, Julianne J. Dalcanton, Karoline M. Gilbert, Katherine M. Hamren, Leo Girardi, Martha L. Boyer, Puragra Guhathakurta

arxiv:1507.06687 v1 · 2015-07-23 · 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{CQO5FBA7FGULHTSZANMOAEG256}

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	2026-05-18T01:32:59.695073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

141dd2841f29a8b3ce590358e010daefaf6a3c1f164298164f5a7a8add32ffee

Aliases

arxiv: 1507.06687 · arxiv_version: 1507.06687v1 · doi: 10.48550/arxiv.1507.06687 · pith_short_12: CQO5FBA7FGUL · pith_short_16: CQO5FBA7FGULHTSZ · pith_short_8: CQO5FBA7

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/CQO5FBA7FGULHTSZANMOAEG256 \
  | 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: 141dd2841f29a8b3ce590358e010daefaf6a3c1f164298164f5a7a8add32ffee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56bd2a0d9b1bfdcd68654ad1db1b86ccdac6174c7f88a92b26c98976ea54a275",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-23T21:26:45Z",
    "title_canon_sha256": "bcdef97c96a6fd8cfe5a14ade35e5591c46194cb0ab36afd34e8ce88aac255a1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06687",
    "kind": "arxiv",
    "version": 1
  }
}