Pith Number

pith:XU4IZFR5

pith:2009:XU4IZFR5ODW4MNHIKNLNZS4HTJ

not attested not anchored not stored refs pending

Large Late-time Asphericities in Three Type IIP Supernovae

((1) UC Berkeley, 2), (2) Harvard), Alexei V. Filippenko (1), Jeffrey M. Silverman (1), Ryan Chornock (1, Weidong Li (1)

arxiv:0912.2465 v2 · 2009-12-13 · astro-ph.CO · 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{XU4IZFR5ODW4MNHIKNLNZS4HTJ}

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	2026-05-18T02:33:56.729706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd388c963d70edc634e85356dccb879a5d356e18d082dc85c7609052435d8d76

Aliases

arxiv: 0912.2465 · arxiv_version: 0912.2465v2 · doi: 10.48550/arxiv.0912.2465 · pith_short_12: XU4IZFR5ODW4 · pith_short_16: XU4IZFR5ODW4MNHI · pith_short_8: XU4IZFR5

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/XU4IZFR5ODW4MNHIKNLNZS4HTJ \
  | 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: bd388c963d70edc634e85356dccb879a5d356e18d082dc85c7609052435d8d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b14cda8823cebe2c3d5ac4d32f168d24cb5036821d4dd65fb692440b5f9521fb",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-13T01:35:47Z",
    "title_canon_sha256": "55a0722618acd3d00c4bd957b674d98a6cf1880301ca1209c6b7e24b347c7ed8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2465",
    "kind": "arxiv",
    "version": 2
  }
}