Pith Number

pith:D5NXZBFM

pith:2009:D5NXZBFM2GA5NQIFJOOILEG67Q

not attested not anchored not stored refs pending

On the classification of flaring states of blazar

A. Gross, D. Franco, E. Flaccomio, E. Resconi, L. Costamante

arxiv:0904.1371 v1 · 2009-04-08 · 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{D5NXZBFM2GA5NQIFJOOILEG67Q}

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	2026-05-18T04:37:34.269232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f5b7c84acd181d6c1054b9c8590defc1427effe7699d23ec70d0c7a56afeed8

Aliases

arxiv: 0904.1371 · arxiv_version: 0904.1371v1 · doi: 10.48550/arxiv.0904.1371 · pith_short_12: D5NXZBFM2GA5 · pith_short_16: D5NXZBFM2GA5NQIF · pith_short_8: D5NXZBFM

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/D5NXZBFM2GA5NQIFJOOILEG67Q \
  | 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: 1f5b7c84acd181d6c1054b9c8590defc1427effe7699d23ec70d0c7a56afeed8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2bd231ccd0b7dfd290966f2fdb295fe26a379ab45b71e89f13bb6e833a1d8c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-08T15:46:31Z",
    "title_canon_sha256": "c45f1e72b3abf4e7c5376e50bfb17fdf96ac174c9d9778a855869f37fa5dd74c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1371",
    "kind": "arxiv",
    "version": 1
  }
}