Pith Number

pith:MGG4PJOH

pith:2016:MGG4PJOHYB35S4QLGI7TGUGXGG

not attested not anchored not stored refs pending

Galaxy And Mass Assembly (GAMA): Gas Fuelling of Spiral Galaxies in the Local Universe I. - The Effect of the Group Environment on Star Formation in Spiral Galaxies

A.M. Hopkins, A.R. Lopez-Sanchez, A.S.G. Robotham, B.F. Madore, B.W. Holwerda, C.C. Popescu, E. Andrae, E.N. Taylor, I.K. Baldry, J. Bland-Hawthorn, J. Liske, J. Loveday, L.S. Kelvin, M. Alpaslan, M.E. Cluver, M. Gunawardhana, M.J.I. Brown, M. Rushton, M. Seibert, M.W. Grootes, P. Norberg, R.J. Tuffs, S.P. Driver

arxiv:1612.07322 v1 · 2016-12-21 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MGG4PJOHYB35S4QLGI7TGUGXGG}

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	2026-05-18T00:50:17.510229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

618dc7a5c7c077d9720b323f3350d731b772c9a2233848557a7c4b89a4350d53

Aliases

arxiv: 1612.07322 · arxiv_version: 1612.07322v1 · doi: 10.48550/arxiv.1612.07322 · pith_short_12: MGG4PJOHYB35 · pith_short_16: MGG4PJOHYB35S4QL · pith_short_8: MGG4PJOH

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/MGG4PJOHYB35S4QLGI7TGUGXGG \
  | 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: 618dc7a5c7c077d9720b323f3350d731b772c9a2233848557a7c4b89a4350d53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38982b8f61f039cd192382d366da976131546d7853df47a3e96a67c53d4467be",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-12-21T21:00:02Z",
    "title_canon_sha256": "5ef3bf89e1b2d99cc6b47678a3270a94715e23e6175ce937ee4e6113bc1e4966"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07322",
    "kind": "arxiv",
    "version": 1
  }
}