Pith Number

pith:G7S4OKSO

pith:2018:G7S4OKSOLIC3ASS5LVV6OT3VDN

not attested not anchored not stored refs pending

Narrow Transient Absorptions in Late-Time Optical Spectra of Type Ia Supernovae: Evidence for Large Clumps of Iron-Rich Ejecta?

Christine S. Black, Jerod T. Parrent, Robert A. Fesen

arxiv:1810.06788 v2 · 2018-10-16 · 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{G7S4OKSOLIC3ASS5LVV6OT3VDN}

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	2026-05-17T23:59:13.999997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37e5c72a4e5a05b04a5d5d6be74f751b6556d422b959e9219bdccb984a92d26c

Aliases

arxiv: 1810.06788 · arxiv_version: 1810.06788v2 · doi: 10.48550/arxiv.1810.06788 · pith_short_12: G7S4OKSOLIC3 · pith_short_16: G7S4OKSOLIC3ASS5 · pith_short_8: G7S4OKSO

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/G7S4OKSOLIC3ASS5LVV6OT3VDN \
  | 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: 37e5c72a4e5a05b04a5d5d6be74f751b6556d422b959e9219bdccb984a92d26c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5dd92bbf77ccf91d3910621c60956edf9c0f124a40fe4c33f1e728f8ecba594",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-10-16T01:59:01Z",
    "title_canon_sha256": "2d20361c7fba39fc3c9c01ad07d038c73c9af03e36e378c38ad065a3945cd11d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.06788",
    "kind": "arxiv",
    "version": 2
  }
}