Pith Number

pith:IK2FOWMQ

pith:2000:IK2FOWMQHSR4M3A2UOOYQNINMH

not attested not anchored not stored refs pending

The Broken Light Curves of Gamma-Ray Bursts GRB 990123 and GRB 990510

(2) University of Iceland, (3) University of Copenhagen), B. Thomsen (1) ((1) University of Aarhus, G. Bjornsson (2), J. Hjorth (3), S. Holland (1)

arxiv:astro-ph/0010196 v2 · 2000-10-10 · 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{IK2FOWMQHSR4M3A2UOOYQNINMH}

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	2026-05-18T04:21:42.514161Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42b45759903ca3c66c1aa39d88350d61f4eff6406f29bc0933ea5ac742c68ccf

Aliases

arxiv: astro-ph/0010196 · arxiv_version: astro-ph/0010196v2 · doi: 10.48550/arxiv.astro-ph/0010196 · pith_short_12: IK2FOWMQHSR4 · pith_short_16: IK2FOWMQHSR4M3A2 · pith_short_8: IK2FOWMQ

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/IK2FOWMQHSR4M3A2UOOYQNINMH \
  | 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: 42b45759903ca3c66c1aa39d88350d61f4eff6406f29bc0933ea5ac742c68ccf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5790bf6d51ccfd20bd2f6d5fe5ef3d2825031b38f388fd3b719fbf56af4c9aa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-10-10T16:55:25Z",
    "title_canon_sha256": "ff2fcf56ef9543fd2b16a4c4634690c997d47f75b6bc22b2afd4004bb7ac9fc0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0010196",
    "kind": "arxiv",
    "version": 2
  }
}