Pith Number

pith:PO7NPIMA

pith:2017:PO7NPIMA2DFWMY764JIWP2Y3M3

not attested not anchored not stored refs pending

A GMOS-N IFU study of the central H II region in the blue compact dwarf galaxy NGC 4449: Kinematics, Nebular Metallicity and Star-Formation

Bethan L. James, Mike J. Irwin, Nimisha Kumari

arxiv:1706.02310 v2 · 2017-06-07 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PO7NPIMA2DFWMY764JIWP2Y3M3}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:38:51.526962Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bbed7a180d0cb6663fee25167eb1b66dbdb70b77ad10c204a41d5d34354b2a9

Aliases

arxiv: 1706.02310 · arxiv_version: 1706.02310v2 · doi: 10.48550/arxiv.1706.02310 · pith_short_12: PO7NPIMA2DFW · pith_short_16: PO7NPIMA2DFWMY76 · pith_short_8: PO7NPIMA

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/PO7NPIMA2DFWMY764JIWP2Y3M3 \
  | 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: 7bbed7a180d0cb6663fee25167eb1b66dbdb70b77ad10c204a41d5d34354b2a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6560a25cd2d2e9a53e92a0790df5ca7d5ef5ee0f173f91e300dc0918fd951d28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-06-07T18:00:05Z",
    "title_canon_sha256": "e381a22fa0d57930dd5d477ad4ed7e6daba75aa00c3129746df4b5348b0a4765"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.02310",
    "kind": "arxiv",
    "version": 2
  }
}