Pith Number

pith:XBSDCZPD

pith:2011:XBSDCZPD2YM4Z4OWG24F3SCOHJ

not attested not anchored not stored refs pending

Measuring Expansion Velocities in Type II-P Supernovae

J. Vinko, K. Takats

arxiv:1109.5873 v1 · 2011-09-27 · 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{XBSDCZPD2YM4Z4OWG24F3SCOHJ}

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	2026-05-18T02:00:22.762301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8643165e3d619ccf1d636b85dc84e3a717181d67a62e65a15ae12f6524586d2

Aliases

arxiv: 1109.5873 · arxiv_version: 1109.5873v1 · doi: 10.48550/arxiv.1109.5873 · pith_short_12: XBSDCZPD2YM4 · pith_short_16: XBSDCZPD2YM4Z4OW · pith_short_8: XBSDCZPD

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/XBSDCZPD2YM4Z4OWG24F3SCOHJ \
  | 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: b8643165e3d619ccf1d636b85dc84e3a717181d67a62e65a15ae12f6524586d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7085d3add56ef360f3d0146aa8f453218de0c6f1dd41055f4f73c3f15c8e71e9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-27T13:02:30Z",
    "title_canon_sha256": "858cdb0743d5386c3baef25ae2bbbdd94f1e438f401f6943d6ccb979113ad60f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.5873",
    "kind": "arxiv",
    "version": 1
  }
}