Pith Number

pith:TTM5RQL7

pith:2011:TTM5RQL7OZHABORBXLFPSXI5HD

not attested not anchored not stored refs pending

Was the "naked burst" GRB 050421 really naked ?

2), 2) ((1) UPMC Univ Paris, F. Daigne (1, Institut d'Astrophysique de Paris), Institut d'Astrophysique de Paris (2) CNRS, R. Hasco\"et (1, R. Mochkovitch (1, Z. L. Uhm (1

arxiv:1109.4514 v2 · 2011-09-21 · 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{TTM5RQL7OZHABORBXLFPSXI5HD}

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	2026-05-18T02:00:27.233444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9cd9d8c17f764e00ba21bacaf95d1d38f6f3c5d2a3c504a8fa1b2b654bda2f50

Aliases

arxiv: 1109.4514 · arxiv_version: 1109.4514v2 · doi: 10.48550/arxiv.1109.4514 · pith_short_12: TTM5RQL7OZHA · pith_short_16: TTM5RQL7OZHABORB · pith_short_8: TTM5RQL7

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/TTM5RQL7OZHABORBXLFPSXI5HD \
  | 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: 9cd9d8c17f764e00ba21bacaf95d1d38f6f3c5d2a3c504a8fa1b2b654bda2f50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68e7842646d71c32d954ebc10532117ddc1efc0c44d1e1150f59dd4be9cde87b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-21T12:54:14Z",
    "title_canon_sha256": "7829185668ca8fa75f86f6fd9c5328364c350d381f7e984203ad5a6df0b7fc0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4514",
    "kind": "arxiv",
    "version": 2
  }
}