Pith Number

pith:Q2PKUMFJ

pith:2010:Q2PKUMFJT7NFTSJGG3453MSEAO

not attested not anchored not stored refs pending

Detection of Strong Short-Term Variability in NGC 6946 X-1

Fengyun Rao (Tsinghua), Hua Feng (Tsinghua), Philip Kaaret (Iowa)

arxiv:1008.2065 v1 · 2010-08-12 · 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{Q2PKUMFJT7NFTSJGG3453MSEAO}

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	2026-05-18T02:05:49.112668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

869eaa30a99fda59c92636f9ddb244038abda4d2761ed84ec01f39ed8ab0a080

Aliases

arxiv: 1008.2065 · arxiv_version: 1008.2065v1 · doi: 10.48550/arxiv.1008.2065 · pith_short_12: Q2PKUMFJT7NF · pith_short_16: Q2PKUMFJT7NFTSJG · pith_short_8: Q2PKUMFJ

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/Q2PKUMFJT7NFTSJGG3453MSEAO \
  | 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: 869eaa30a99fda59c92636f9ddb244038abda4d2761ed84ec01f39ed8ab0a080

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e418a62d799749ce05eee68e58c5e880491cc4edb592d0fde9754bdf8c7a7ba6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-08-12T08:35:37Z",
    "title_canon_sha256": "52298112389d559df62970c4b3cd8d5f0f89fb803f03e782e3b63e83dccd69d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.2065",
    "kind": "arxiv",
    "version": 1
  }
}