Pith Number

pith:O6SKE2V5

pith:2012:O6SKE2V5T5LCJQ7ETMXAKNP2LC

not attested not anchored not stored refs pending

EVLA Observations Constrain the Environment and Progenitor System of Type Ia Supernova 2011fe

Alicia M. Soderberg, Carles Badenes, Claes Fransson, Jason A. Dittmann, Laura Chomiuk, Maxwell Moe, Michael P. Rupen, Raffaella Margutti, Roger A. Chevalier, Wen-fai Fong

arxiv:1201.0994 v2 · 2012-01-04 · astro-ph.HE · 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{O6SKE2V5T5LCJQ7ETMXAKNP2LC}

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	2026-05-18T01:58:57.643371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77a4a26abd9f5624c3e49b2e0535fa58951a22e717c45193de8e74fd8b1ad2c4

Aliases

arxiv: 1201.0994 · arxiv_version: 1201.0994v2 · doi: 10.48550/arxiv.1201.0994 · pith_short_12: O6SKE2V5T5LC · pith_short_16: O6SKE2V5T5LCJQ7E · pith_short_8: O6SKE2V5

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/O6SKE2V5T5LCJQ7ETMXAKNP2LC \
  | 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: 77a4a26abd9f5624c3e49b2e0535fa58951a22e717c45193de8e74fd8b1ad2c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e62b223178baace29e2045258b2a309c5dc3e2dc02b80863912d420868f32c4",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-01-04T21:00:00Z",
    "title_canon_sha256": "76c1104851be325b88aba60a837ce70a3745da5e60ec783aac32ff6c22a17967"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.0994",
    "kind": "arxiv",
    "version": 2
  }
}