Pith Number

pith:KHSLFRIQ

pith:2003:KHSLFRIQD5UHYQHWWDMO6PCQJL

not attested not anchored not stored refs pending

Variable polarization in the optical afterglow of GRB 021004

A. J. Castro-Tirado, A. S. Fruchter, C. Kouveliotou, E. Palazzi, E. Pian, E. P. J. van den Heuvel, E. Rol, H. Pedersen, I. Burud, I. Salamanca, J. Gorosabel, J. Hjorth, J. M. Castro Cer\'on, J. P. U. Fynbo, J. Rhoads, L. Kaper, M. P. Egholm, N. Masetti, N. Tanvir, P. Moller, P. Vreeswijk, R. A. M. J. Wijers

arxiv:astro-ph/0305227 v2 · 2003-05-13 · 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{KHSLFRIQD5UHYQHWWDMO6PCQJL}

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	2026-07-04T15:32:02.553216Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51e4b2c5101f687c40f6b0d8ef3c504ae4f23781c8af643602bff86ca5beb3e0

Aliases

arxiv: astro-ph/0305227 · arxiv_version: astro-ph/0305227v2 · doi: 10.48550/arxiv.astro-ph/0305227 · pith_short_12: KHSLFRIQD5UH · pith_short_16: KHSLFRIQD5UHYQHW · pith_short_8: KHSLFRIQ

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/KHSLFRIQD5UHYQHWWDMO6PCQJL \
  | 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: 51e4b2c5101f687c40f6b0d8ef3c504ae4f23781c8af643602bff86ca5beb3e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3f55255c59a66a238bbc244932ffde860d4cfe4fb414dabee7d03e0ced484f7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-05-13T14:47:13Z",
    "title_canon_sha256": "a722df138390520c6a1a2955c877c8c0fd4790bf95949dc99bb199a63dcbb2fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0305227",
    "kind": "arxiv",
    "version": 2
  }
}