Pith Number

pith:OKLC2UQ2

pith:2016:OKLC2UQ2OB6IADYAVMWYKNTDNP

not attested not anchored not stored refs pending

Infrared Continuum and Line Evolution of the Equatorial Ring around SN 1987A

Charles E. Woodward, Eli Dwek, I. John Danziger, Kari A. Frank, Patrice Bouchet, Richard G. Arendt, Robert D. Gehrz, Sangwook Park

arxiv:1601.02506 v1 · 2016-01-11 · 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{OKLC2UQ2OB6IADYAVMWYKNTDNP}

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	2026-05-18T01:19:25.101691Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72962d521a707c800f00ab2d8536636bdddaf3748e25b30c9bd358a5c519efec

Aliases

arxiv: 1601.02506 · arxiv_version: 1601.02506v1 · doi: 10.48550/arxiv.1601.02506 · pith_short_12: OKLC2UQ2OB6I · pith_short_16: OKLC2UQ2OB6IADYA · pith_short_8: OKLC2UQ2

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/OKLC2UQ2OB6IADYAVMWYKNTDNP \
  | 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: 72962d521a707c800f00ab2d8536636bdddaf3748e25b30c9bd358a5c519efec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "949b39106173d0255045340f3cc03f4a5f6b8abe0555d55657842cf673f58b22",
    "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": "2016-01-11T16:15:38Z",
    "title_canon_sha256": "4e04c3193d051290718c99b5ce09ea586280b1ae7ffd5a60cf2d26f2808dbb81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02506",
    "kind": "arxiv",
    "version": 1
  }
}