Pith Number

pith:6QQKWJRW

pith:2016:6QQKWJRWPBL7ZWNAP7QP3RGAG3

not attested not anchored not stored refs pending

Endurance of SN 2005ip after a decade: X-rays, radio, and H-alpha like SN 1988Z require long-lived pre-supernova mass loss

Alexei V. Filippenko, Charles D. Kilpatrick, Jennifer E. Andrews, Jon C. Mauerhan, Melissa L. Graham, Nathan Smith, Ori D. Fox, Patrick L. Kelly, Raffaella Margutti, Weikang Zheng, Wen-fai Fong

arxiv:1612.02011 v1 · 2016-12-06 · astro-ph.HE · 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{6QQKWJRWPBL7ZWNAP7QP3RGAG3}

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	2026-05-18T00:51:41.723044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f420ab26367857fcd9a07fe0fdc4c036ce76a5e9dc6dd42c14c7d42bc735b9f9

Aliases

arxiv: 1612.02011 · arxiv_version: 1612.02011v1 · doi: 10.48550/arxiv.1612.02011 · pith_short_12: 6QQKWJRWPBL7 · pith_short_16: 6QQKWJRWPBL7ZWNA · pith_short_8: 6QQKWJRW

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/6QQKWJRWPBL7ZWNAP7QP3RGAG3 \
  | 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: f420ab26367857fcd9a07fe0fdc4c036ce76a5e9dc6dd42c14c7d42bc735b9f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae041a1f46012d6d15cd7303fec23332c07c7506cb9003e21b54113ccad7bee8",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-12-06T21:00:07Z",
    "title_canon_sha256": "d86ab752905589691ba650c68d5019cea00c272da218215a0550deb6fc61124a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02011",
    "kind": "arxiv",
    "version": 1
  }
}