Pith Number

pith:UMEVZXVV

pith:2008:UMEVZXVVYKUHJVQACFYYKKTVOG

not attested not anchored not stored refs pending

On the nature of late X-ray flares in Swift Gamma-ray Bursts

(2) University of Leicester, (3) NSSTC), A.J. van der Horst (3), O. Godet (2), P.A. Curran (1), P.T. O'Brien (2), R.A.M.J. Wijers (1) ((1) University of Amsterdam, R.L.C. Starling (2)

arxiv:0802.3803 v2 · 2008-02-26 · 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{UMEVZXVVYKUHJVQACFYYKKTVOG}

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	2026-05-18T02:16:00.844834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3095cdeb5c2a874d6001171852a7571a314a7f568a04a433fec123029d0d5de

Aliases

arxiv: 0802.3803 · arxiv_version: 0802.3803v2 · doi: 10.48550/arxiv.0802.3803 · pith_short_12: UMEVZXVVYKUH · pith_short_16: UMEVZXVVYKUHJVQA · pith_short_8: UMEVZXVV

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/UMEVZXVVYKUHJVQACFYYKKTVOG \
  | 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: a3095cdeb5c2a874d6001171852a7571a314a7f568a04a433fec123029d0d5de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edb35828a0405b767cf9dad357a940201d159337308a7b0ac867a437e92e98e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-02-26T12:41:50Z",
    "title_canon_sha256": "e7ebcfab17e8f70616bbb4ef811842ce2eabb590cafe3a894ff94d720b524bf1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.3803",
    "kind": "arxiv",
    "version": 2
  }
}