Pith Number

pith:FPSQUH54

pith:2007:FPSQUH54WID2S4D35WLERK55S7

not attested not anchored not stored refs pending

The Detection of a Light Echo from the Type Ia Supernova 2006X in M100

2), Alexei V. Filippenko (1), Lifan Wang (3) ((1) UC Berkeley; (2) Tsinghua University; (3) Texas A&M University), Nathan Smith (1), Ryan J. Foley (1), Weidong Li (1), Xiaofeng Wang (1

arxiv:0711.2570 v3 · 2007-11-16 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPSQUH54WID2S4D35WLERK55S7}

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	2026-05-18T02:35:24.226866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2be50a1fbcb207a9707bed9648abbd97e9df4a1fbd9c4bba212187524b86eb0c

Aliases

arxiv: 0711.2570 · arxiv_version: 0711.2570v3 · doi: 10.48550/arxiv.0711.2570 · pith_short_12: FPSQUH54WID2 · pith_short_16: FPSQUH54WID2S4D3 · pith_short_8: FPSQUH54

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/FPSQUH54WID2S4D35WLERK55S7 \
  | 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: 2be50a1fbcb207a9707bed9648abbd97e9df4a1fbd9c4bba212187524b86eb0c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efdcf8888ade56ac55a14df63dd3c0b18d786700293a4d29e5f7b50145aaa35a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-16T09:21:39Z",
    "title_canon_sha256": "23b330539ab7c46f9106aac589b0b71a008430adbb7fde93a1b26b9decee0603"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.2570",
    "kind": "arxiv",
    "version": 3
  }
}