Pith Number

pith:MM3JTQUK

pith:2019:MM3JTQUK77B5KSFSSSDPWM5JFM

not attested not anchored not stored refs pending

A Predicted Correlation Between Age Gradient and Star Formation History in FIRE Dwarf Galaxies

Alex Fitts, Andrew S. Graus, Andrew Wetzel, Claude-Andr\'e Faucher-Gigu\`ere, Daniel R. Weisz, Dusan Keres, Eliot Quataert, James S. Bullock, Michael Boylan-Kolchin, Michael C. Cooper, Philip F. Hopkins, Robert Feldmann

arxiv:1901.05487 v1 · 2019-01-16 · 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{MM3JTQUK77B5KSFSSSDPWM5JFM}

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	2026-07-05T00:08:54.493791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

633699c28affc3d548b29486fb33a92b3d4f08ab301a1c707d29d5687e95e239

Aliases

arxiv: 1901.05487 · arxiv_version: 1901.05487v1 · doi: 10.48550/arxiv.1901.05487 · pith_short_12: MM3JTQUK77B5 · pith_short_16: MM3JTQUK77B5KSFS · pith_short_8: MM3JTQUK

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/MM3JTQUK77B5KSFSSSDPWM5JFM \
  | 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: 633699c28affc3d548b29486fb33a92b3d4f08ab301a1c707d29d5687e95e239

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96ff8a96033851b61b6367fae5c3561846ec4f3ed9f3f915a06194c3f835da21",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-16T19:03:01Z",
    "title_canon_sha256": "ee7ae3649681d106e070b3cbe55cb7e62f39229fd4373b19671e31a42889f25e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05487",
    "kind": "arxiv",
    "version": 1
  }
}