Pith Number

pith:YMD5PHQB

pith:2018:YMD5PHQBWBICOLBCDUNVNQKGRS

not attested not anchored not stored refs pending

Elemental Abundances in M31: Alpha and Iron Element Abundances from Low-Resolution Resolved Stellar Spectroscopy in the Stellar Halo

Emily C. Cunningham, Evan N. Kirby, Ivanna Escala, Jennifer Wojno, Karoline M. Gilbert

arxiv:1811.09279 v2 · 2018-11-22 · 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{YMD5PHQBWBICOLBCDUNVNQKGRS}

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	2026-05-17T23:43:04.243368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c307d79e01b050272c221d1b56c1468cb22a0022483d00e36de26c17638dc4a0

Aliases

arxiv: 1811.09279 · arxiv_version: 1811.09279v2 · doi: 10.48550/arxiv.1811.09279 · pith_short_12: YMD5PHQBWBIC · pith_short_16: YMD5PHQBWBICOLBC · pith_short_8: YMD5PHQB

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/YMD5PHQBWBICOLBCDUNVNQKGRS \
  | 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: c307d79e01b050272c221d1b56c1468cb22a0022483d00e36de26c17638dc4a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ba44f7a1ecb09a8bb9ba85ac015f46dc7a02131e84339e11668784a36771e8c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-22T19:00:04Z",
    "title_canon_sha256": "34c4c629b9c054cb3a799f30b5a7782ce8bf40c67f1bd90fcfcd859b04ffba95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09279",
    "kind": "arxiv",
    "version": 2
  }
}