Pith Number

pith:XNE6IYB5

pith:2010:XNE6IYB5AYK7OL2VUU5ALY4K6Y

not attested not anchored not stored refs pending

The 2008 extreme outburst of the young eruptive variable star Ex Lupi

Bo Reipurth, Colin Aspin, Gregory Herczeg, Peter Capak

arxiv:1007.4178 v1 · 2010-07-23 · 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{XNE6IYB5AYK7OL2VUU5ALY4K6Y}

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	2026-05-18T02:06:11.032667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb49e4603d0615f72f55a53a05e38af61cdd9c489e46ee17c069fdbbcb66721b

Aliases

arxiv: 1007.4178 · arxiv_version: 1007.4178v1 · doi: 10.48550/arxiv.1007.4178 · pith_short_12: XNE6IYB5AYK7 · pith_short_16: XNE6IYB5AYK7OL2V · pith_short_8: XNE6IYB5

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/XNE6IYB5AYK7OL2VUU5ALY4K6Y \
  | 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: bb49e4603d0615f72f55a53a05e38af61cdd9c489e46ee17c069fdbbcb66721b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d58f68102c5152e6bbb7adbeb8b1c9298bd16b3cc0b4968057dfeb41e28980c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-07-23T17:14:04Z",
    "title_canon_sha256": "ce9ccc54d1e61640b3aa47629bef4c8a9fb650ed3a9607bc3918c5a72b0320f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.4178",
    "kind": "arxiv",
    "version": 1
  }
}