Pith Number

pith:PPF2EMJ6

pith:2018:PPF2EMJ6PDLRA2P5IXX64GSPCK

not attested not anchored not stored refs pending

Project AMIGA: Distance and Metallicity Gradients Along Andromeda's Giant Southern Stream from the Red Clump

Jason S. Kalirai, John M. O'Meara, Karoline M. Gilbert, Kathleen A. Barger, Luciana Bianchi, Molly S. Peeples, Nicolas Lehner, Puragra Guhathakurta, Roger E. Cohen, Thomas M. Brown

arxiv:1810.01525 v1 · 2018-10-02 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPF2EMJ6PDLRA2P5IXX64GSPCK}

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	2026-05-18T00:01:27.999959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bcba2313e78d71069fd45efee1a4f1293e9339c0c1fd630981d673d4bfb4f13

Aliases

arxiv: 1810.01525 · arxiv_version: 1810.01525v1 · doi: 10.48550/arxiv.1810.01525 · pith_short_12: PPF2EMJ6PDLR · pith_short_16: PPF2EMJ6PDLRA2P5 · pith_short_8: PPF2EMJ6

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/PPF2EMJ6PDLRA2P5IXX64GSPCK \
  | 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: 7bcba2313e78d71069fd45efee1a4f1293e9339c0c1fd630981d673d4bfb4f13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca12e59bc106110e4a34b94e6e7e0e4966ab96c8b1044e01d7f722a9a725e480",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-10-02T21:25:29Z",
    "title_canon_sha256": "481b2a19813d48d488582b6d11018d401b19285a2aa837f428f694e346047e07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.01525",
    "kind": "arxiv",
    "version": 1
  }
}