Pith Number

pith:VGXFC454

pith:2007:VGXFC45447423CIBSSIFUFG6UG

not attested not anchored not stored refs pending

A Giant Flare from a Soft Gamma Repeater in the Andromeda Galaxy, M31

A. von Kienlin, D.D. Frederiks, E.P. Mazets, J.O. Goldsten, K. Hurley, R.L. Aptekar, S.V. Golenetskii, T.L. Cline, V.D. Pal'shin

arxiv:0712.1502 v1 · 2007-12-10 · 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{VGXFC45447423CIBSSIFUFG6UG}

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	2026-05-18T04:22:01.231896Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9ae5173bce7f9ad890194905a14dea1a3f1f0df0d40317de247145f66f45bdf

Aliases

arxiv: 0712.1502 · arxiv_version: 0712.1502v1 · doi: 10.48550/arxiv.0712.1502 · pith_short_12: VGXFC4544742 · pith_short_16: VGXFC45447423CIB · pith_short_8: VGXFC454

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/VGXFC45447423CIBSSIFUFG6UG \
  | 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: a9ae5173bce7f9ad890194905a14dea1a3f1f0df0d40317de247145f66f45bdf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f55689bad33e043b6e372645cdf2374b82ebe662572d67dab49414b832d04ab3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-12-10T15:10:47Z",
    "title_canon_sha256": "fb1644e589e73246b55692bfb7fcaadb8603a892648e49b5f25d3c6f6c2857b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0712.1502",
    "kind": "arxiv",
    "version": 1
  }
}