Pith Number

pith:EJYSZUM4

pith:2016:EJYSZUM4LPZTJNCFPBBA5BPZ5A

not attested not anchored not stored refs pending

An Empirical Fitting Method for Type Ia Supernova Light Curves: A Case Study of SN 2011fe

Alexei V. Filippenko (UCB), Weikang Zheng (UCB)

arxiv:1612.02097 v3 · 2016-12-07 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EJYSZUM4LPZTJNCFPBBA5BPZ5A}

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	2026-05-18T00:47:49.006700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22712cd19c5bf334b44578420e85f9e80e7660bde5738e011f74c9807eb851cd

Aliases

arxiv: 1612.02097 · arxiv_version: 1612.02097v3 · doi: 10.48550/arxiv.1612.02097 · pith_short_12: EJYSZUM4LPZT · pith_short_16: EJYSZUM4LPZTJNCF · pith_short_8: EJYSZUM4

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/EJYSZUM4LPZTJNCFPBBA5BPZ5A \
  | 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: 22712cd19c5bf334b44578420e85f9e80e7660bde5738e011f74c9807eb851cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07f5c8b4008924c75b27e8cafc4ab11114cc51c0f98c444f749c4c367e2e0234",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-12-07T01:57:25Z",
    "title_canon_sha256": "daed1f4d38cfde0be8dbe1375417d1d6ee2ccd0217a438c8f81ddf3341e301dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02097",
    "kind": "arxiv",
    "version": 3
  }
}