Pith Number

pith:7YCB5AOI

pith:2016:7YCB5AOIQBMIEPTHYBBEESLZYJ

not attested not anchored not stored refs pending

Time-Varying Sodium Absorption in the Type Ia Supernova 2013gh

A. Goobar, A. V. Filippenko, D. A. Howell, E. Freeland, G. Doran, G. Hosseinzadeh, J. Johansson, J. Nordin, P. E. Nugent, P. Lundqvist, P. M. Vreeswijk, P. Wozniak, R. Amanullah, R. Ferretti, R. P. Butler, S. B. Cenko, S. Mattila, S. Valenti, S. Vogt, T. Petrushevska, Y. Cao

arxiv:1605.01738 v1 · 2016-05-05 · astro-ph.SR · astro-ph.GA · 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{7YCB5AOIQBMIEPTHYBBEESLZYJ}

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	2026-05-18T01:10:47.847406Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe041e81c88058823e67c042424979c26a89bb98b94348048e64ee516251a159

Aliases

arxiv: 1605.01738 · arxiv_version: 1605.01738v1 · doi: 10.48550/arxiv.1605.01738 · pith_short_12: 7YCB5AOIQBMI · pith_short_16: 7YCB5AOIQBMIEPTH · pith_short_8: 7YCB5AOI

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/7YCB5AOIQBMIEPTHYBBEESLZYJ \
  | 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: fe041e81c88058823e67c042424979c26a89bb98b94348048e64ee516251a159

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e749b97d97d4ddf5ab61994e5ece3abe59df53a3c9f0ea437cfd5816110c8a04",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-05-05T20:00:47Z",
    "title_canon_sha256": "08470f93b69eeb5d2fbe1dc42a13367a297bc5251229bf759698f2f384bb4038"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.01738",
    "kind": "arxiv",
    "version": 1
  }
}