Pith Number

pith:KJ25FGBT

pith:2008:KJ25FGBTGWCCLBM7ENYJMTDPXL

not attested not anchored not stored refs pending

The Nuclear Bulge extinction

(2) University of Florida, (3) University of Hertfordshire), Andrew J. Gosling (1), Katherine M. Blundell (1), Phil Lucas (3) ((1) University of Oxford, Reba M. Bandyopadhyay (2)

arxiv:0806.4124 v1 · 2008-06-25 · 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{KJ25FGBTGWCCLBM7ENYJMTDPXL}

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	2026-05-18T04:24:45.536079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5275d29833358425859f2370964c6fbae14345c7f8faf88f8266b5260db17f02

Aliases

arxiv: 0806.4124 · arxiv_version: 0806.4124v1 · doi: 10.48550/arxiv.0806.4124 · pith_short_12: KJ25FGBTGWCC · pith_short_16: KJ25FGBTGWCCLBM7 · pith_short_8: KJ25FGBT

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/KJ25FGBTGWCCLBM7ENYJMTDPXL \
  | 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: 5275d29833358425859f2370964c6fbae14345c7f8faf88f8266b5260db17f02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c719981821b525a58dc59dc06c022558285a697d3e29db3a75a2decbef179d5b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-25T15:09:37Z",
    "title_canon_sha256": "f9e38240c95395636b1548f89f58e9d4fe25d54ec8170e3eaf5c9379ba187443"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.4124",
    "kind": "arxiv",
    "version": 1
  }
}