Pith Number

pith:Z7F7RXMA

pith:2009:Z7F7RXMAQU3SA4YHXO5XZFNIT7

not attested not anchored not stored refs pending

Swift observations of IBL and LBL objects

A. Cassetti, D. Burrows, F. Massaro, G. Tosti, M. Perri, N. Gerehls, P. Giommi, R. Nesci

arxiv:0901.1284 v1 · 2009-01-09 · 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{Z7F7RXMAQU3SA4YHXO5XZFNIT7}

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	2026-05-18T02:15:02.747057Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfcbf8dd808537207307bbbb7c95a89fdda007a1a595331ec7b221f69f67a9ef

Aliases

arxiv: 0901.1284 · arxiv_version: 0901.1284v1 · doi: 10.48550/arxiv.0901.1284 · pith_short_12: Z7F7RXMAQU3S · pith_short_16: Z7F7RXMAQU3SA4YH · pith_short_8: Z7F7RXMA

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/Z7F7RXMAQU3SA4YHXO5XZFNIT7 \
  | 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: cfcbf8dd808537207307bbbb7c95a89fdda007a1a595331ec7b221f69f67a9ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0553b3604673eee1295127a0bde71732f9001dddfa4617b569fd7e0f423f34e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-01-09T17:36:25Z",
    "title_canon_sha256": "c0b926b0621b1fbcaa140a14da1d2850cc0cff0f27595d60b734252ba67c6a5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.1284",
    "kind": "arxiv",
    "version": 1
  }
}