Pith Number

pith:3E7WYRDS

pith:2013:3E7WYRDSZELVIV6EHL7E73QC2J

not attested not anchored not stored refs pending

High-Velocity Line Forming Regions in the Type Ia Supernova 2009ig

(10) Las Cumbres Observatory Global Telescope Network, 11), (11) Department of Physics & Astronomy, (12) Department of Astronomy & Astrophysics, 13), (13) Space Science & Engineering Division, (14) Physics Department, (2) University of Texas at Austin, 3), (3) Department of Optics, 4), (4) Clay Fellow, (5) Carnegie Observatories, 6) ((1) Harvard-Smithsonian Center for Astrophysics, (6) Mitchell Institute, (7) Department of Astronomy, (8) Department of Physics, (9) Adnet Systems, Alexei V. Filippenko (7), Dartmouth College, Eric Y. Hsiao (5), G. H. Marion (1), Harvard-Smithsonian Center for Astrophysics, J. Craig Wheeler (2), Jeffrey M. Silverman (2), Jerod T. Parrent (10, Jozsef Vinko (2, Las Campanas Observatory, NASA Goddard Space Flight Center, Penn State University, Peter Challis (1), Peter Garnavich (8), Peter J. Brown (6), Peter W. A. Roming (12, Quantum Electronics, Robert P. Kirshner (1), Ryan J. Foley (1, Southwest Research Institute, Texas A&M University, Tsinghua Center for Astrophysics (THCA)), Tyler A. Pritchard (12), University of California, University of Notre Dame, University of Szeged, Wayne B. Landsman (9), Xiaofeng Wang (14

arxiv:1302.3537 v2 · 2013-02-14 · 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{3E7WYRDSZELVIV6EHL7E73QC2J}

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	2026-05-18T01:51:41.170082Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d93f6c4472c9175457c43afe4fee02d249900828d7080d491b523f82dbe0f410

Aliases

arxiv: 1302.3537 · arxiv_version: 1302.3537v2 · doi: 10.48550/arxiv.1302.3537 · pith_short_12: 3E7WYRDSZELV · pith_short_16: 3E7WYRDSZELVIV6E · pith_short_8: 3E7WYRDS

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/3E7WYRDSZELVIV6EHL7E73QC2J \
  | 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: d93f6c4472c9175457c43afe4fee02d249900828d7080d491b523f82dbe0f410

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc3563a961f8d24aa7c2034a5ca2ae170f44ed400789847c439973a35e4ee9be",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-02-14T20:26:13Z",
    "title_canon_sha256": "3af7f80a157a3a6f8e6fe64d13578dcac9fe067985dfaeea14ce87659ec137d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.3537",
    "kind": "arxiv",
    "version": 2
  }
}