Pith Number

pith:2Z3V3VBB

pith:2012:2Z3V3VBBSL4DH3A5MGJZ7LTU62

not attested not anchored not stored refs pending

Constraints on Type Ia Supernova Progenitor Companions from Early Ultraviolet Observations with Swift

David W. Harris, Kyle S. Dawson, Matthew Olmstead, Peter J. Brown, Peter Milne, Peter W. A. Roming

arxiv:1203.5315 v1 · 2012-03-23 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2Z3V3VBBSL4DH3A5MGJZ7LTU62}

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	2026-05-18T01:58:02.391979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6775dd42192f833ec1d61939fae74f6af95ce59545729adfff8c144c0687de2

Aliases

arxiv: 1203.5315 · arxiv_version: 1203.5315v1 · doi: 10.48550/arxiv.1203.5315 · pith_short_12: 2Z3V3VBBSL4D · pith_short_16: 2Z3V3VBBSL4DH3A5 · pith_short_8: 2Z3V3VBB

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/2Z3V3VBBSL4DH3A5MGJZ7LTU62 \
  | 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: d6775dd42192f833ec1d61939fae74f6af95ce59545729adfff8c144c0687de2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99fb917b1f947341a12d5993a1085583391931c3bc4708eebfcbb787d194674d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-23T18:37:36Z",
    "title_canon_sha256": "e41717275ecb45f27791c00460dd7440bc40925355951fb67807380375cec860"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5315",
    "kind": "arxiv",
    "version": 1
  }
}