Pith Number

pith:HNPTUW2Q

pith:2009:HNPTUW2QHIBJOTBGZMEMVU37LG

not attested not anchored not stored refs pending

Radio Observations of the January 20, 2005 X-Class Event

A. Hillaris, A. Kontogeorgos, C. Bouratzis, P. Preka-Papadema, P. Tsitsipis, V. G. Kurt X. Moussas

arxiv:0912.3782 v10 · 2009-12-18 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HNPTUW2QHIBJOTBGZMEMVU37LG}

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	2026-05-18T04:39:00.189036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3b5f3a5b503a02974c26cb08cad37f59ba6b9f6c0d1b4755892740849f74fa80

Aliases

arxiv: 0912.3782 · arxiv_version: 0912.3782v10 · doi: 10.48550/arxiv.0912.3782 · pith_short_12: HNPTUW2QHIBJ · pith_short_16: HNPTUW2QHIBJOTBG · pith_short_8: HNPTUW2Q

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/HNPTUW2QHIBJOTBGZMEMVU37LG \
  | 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: 3b5f3a5b503a02974c26cb08cad37f59ba6b9f6c0d1b4755892740849f74fa80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8c25e34f7ff325992d771d0e41782b872223deaa424c2dd87b0b63fbd237abfa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-18T20:04:09Z",
    "title_canon_sha256": "6d436ab4d4b9e60bae36538e4bac88c3d28fa41042fbda8c580761daab1f462f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3782",
    "kind": "arxiv",
    "version": 10
  }
}