Pith Number

pith:4G7PV5GG

pith:1998:4G7PV5GG2UESQQFPYUMKYICC44

not attested not anchored not stored refs pending

Discovery of Recent Star Formation in the Extreme Outer Regions of Disk Galaxies

Annette Ferguson, Deidre Hunter, Jay Gallagher, Rosemary Wyse

arxiv:astro-ph/9808151 v1 · 1998-08-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4G7PV5GG2UESQQFPYUMKYICC44}

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.

Cited by

1 paper in Pith

Probing Magnetic Fields In and Around Galaxies Near and Far

Receipt and verification

First computed	2026-07-04T16:06:55.937099Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1befaf4c6d5092840afc518ac2042e703d3d1684372e6683b48191130966f94

Aliases

arxiv: astro-ph/9808151 · arxiv_version: astro-ph/9808151v1 · doi: 10.48550/arxiv.astro-ph/9808151 · pith_short_12: 4G7PV5GG2UES · pith_short_16: 4G7PV5GG2UESQQFP · pith_short_8: 4G7PV5GG

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/4G7PV5GG2UESQQFPYUMKYICC44 \
  | 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: e1befaf4c6d5092840afc518ac2042e703d3d1684372e6683b48191130966f94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "530acb4b8cdfd3b4a6cf2d79eb6d65833927dda2fe33852e69ecb37a768727d6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-08-14T15:46:22Z",
    "title_canon_sha256": "553aa0fec4f605ec8818017186319d1b7b53462ffd85dee847829ad3a89f5787"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9808151",
    "kind": "arxiv",
    "version": 1
  }
}