Pith Number

pith:BLZ2CFOE

pith:2009:BLZ2CFOEAM3PUTOK5YG4JO5B2K

not attested not anchored not stored refs pending

Complicated variations of early optical afterglow of GRB 090726

C. Polasek, J. Strobl, M. Jelinek, R. Hudec, V. Simon

arxiv:0911.1778 v1 · 2009-11-09 · astro-ph.CO · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BLZ2CFOEAM3PUTOK5YG4JO5B2K}

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	2026-05-18T02:34:11.497510Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0af3a115c40336fa4dcaee0dc4bba1d2a9c6fe3c069a00dac4146f86d1d6990d

Aliases

arxiv: 0911.1778 · arxiv_version: 0911.1778v1 · doi: 10.48550/arxiv.0911.1778 · pith_short_12: BLZ2CFOEAM3P · pith_short_16: BLZ2CFOEAM3PUTOK · pith_short_8: BLZ2CFOE

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/BLZ2CFOEAM3PUTOK5YG4JO5B2K \
  | 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: 0af3a115c40336fa4dcaee0dc4bba1d2a9c6fe3c069a00dac4146f86d1d6990d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ccda52a08a21281dea662ad6b4915ed38c5b95a77e3ff28a276bd1d17a3d7fa",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-11-09T21:12:42Z",
    "title_canon_sha256": "47a605bc02af8c655d725c201c0a7bc9fcaf9398443973125da03ff2d770d3a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.1778",
    "kind": "arxiv",
    "version": 1
  }
}