Pith Number

pith:Q4DIQHEC

pith:2011:Q4DIQHECNETMNL4THEHFKCSPIT

not attested not anchored not stored refs pending

Keck Observations of the Young Metal-Poor Host Galaxy of the Super-Chandrasekhar-Mass Type Ia Supernova SN 2007if

A. Canto, B. A. Weaver, C. Aragon, C. Baltay, C. Buton, C. Tao, C. Wu, D. Rabinowitz, E. Gangler, E. Pecontal, E. Y. Hsiao, G. Aldering, G. Smadja, H. K. Fakhouri, K. Paech, K. Runge, M. Childress, M. Kerschhaggl, M. Kowalski, N. Chotard, P. Antilogus, P. Nugent, R. C. Thomas, R. Pain, R. Pereira, R. Scalzo, S. Bailey, S. Bongard, S. Loken, S. Perlmutter, Y. Copin

arxiv:1103.2324 v1 · 2011-03-11 · 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{Q4DIQHECNETMNL4THEHFKCSPIT}

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	2026-05-18T02:02:54.500862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8706881c826926c6af93390e550a4f44d3a5cb026881e6756ad8af82961b2001

Aliases

arxiv: 1103.2324 · arxiv_version: 1103.2324v1 · doi: 10.48550/arxiv.1103.2324 · pith_short_12: Q4DIQHECNETM · pith_short_16: Q4DIQHECNETMNL4T · pith_short_8: Q4DIQHEC

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/Q4DIQHECNETMNL4THEHFKCSPIT \
  | 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: 8706881c826926c6af93390e550a4f44d3a5cb026881e6756ad8af82961b2001

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d57d9d81e3d726fb50888af2f203c802ec8c20f1098d0cce2a721fe14503838d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-11T17:55:28Z",
    "title_canon_sha256": "1bd87c6b10d377aa953f08bb56c773573d31ea9d9b24c4b9cdf479658352fdf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.2324",
    "kind": "arxiv",
    "version": 1
  }
}