Pith Number

pith:WDZSVY2F

pith:2017:WDZSVY2FSCNM7LKBKLPC3XQIV4

not attested not anchored not stored refs pending

Cas A and the Crab Were Not Stellar Binaries At Death

C.S. Kochanek (1) ((1) Department of Astronomy, The Ohio State University)

arxiv:1701.03109 v1 · 2017-01-11 · astro-ph.SR · astro-ph.GA · 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{WDZSVY2FSCNM7LKBKLPC3XQIV4}

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	2026-05-18T00:31:13.460273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0f32ae345909acfad4152de2dde08af2b9ff76ccf5e3f842f41bbfbf582192f

Aliases

arxiv: 1701.03109 · arxiv_version: 1701.03109v1 · doi: 10.48550/arxiv.1701.03109 · pith_short_12: WDZSVY2FSCNM · pith_short_16: WDZSVY2FSCNM7LKB · pith_short_8: WDZSVY2F

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/WDZSVY2FSCNM7LKBKLPC3XQIV4 \
  | 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: b0f32ae345909acfad4152de2dde08af2b9ff76ccf5e3f842f41bbfbf582192f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08b0d36f02f5f5955213a9a24a4d3b08fdac881f1af6e8076ee9692c9bf888c3",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-01-11T19:00:02Z",
    "title_canon_sha256": "08a16612584ecc74a8e59a76fe8f3ba0520f82fb26344a1f1e9e184f3e0ac132"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.03109",
    "kind": "arxiv",
    "version": 1
  }
}