Pith Number

pith:SRM2G4OI

pith:2019:SRM2G4OI2DPHAUD5L6GD6F7763

not attested not anchored not stored refs pending

SkyMapper SEDs of nearby galaxies: quenching and bursting probed by a change index for star formation

Christian Wolf, Christopher A. Onken, Jacob Golding, Li Shao

arxiv:1904.08612 v1 · 2019-04-18 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SRM2G4OI2DPHAUD5L6GD6F7763}

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	2026-05-17T23:48:13.704306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9459a371c8d0de70507d5f8c3f17fff6cffc774190db52fd3c4236c5c1d8ba8c

Aliases

arxiv: 1904.08612 · arxiv_version: 1904.08612v1 · doi: 10.48550/arxiv.1904.08612 · pith_short_12: SRM2G4OI2DPH · pith_short_16: SRM2G4OI2DPHAUD5 · pith_short_8: SRM2G4OI

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/SRM2G4OI2DPHAUD5L6GD6F7763 \
  | 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: 9459a371c8d0de70507d5f8c3f17fff6cffc774190db52fd3c4236c5c1d8ba8c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a8d75b2ad9ec456c1d995c03cedfa55611daf824263194a6108ec671f72d102",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-18T07:24:38Z",
    "title_canon_sha256": "e55b2676ee7934214bc6252cdcbc0770dbb4ebeb7cef1be112bec57c17d07d1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.08612",
    "kind": "arxiv",
    "version": 1
  }
}