Pith Number

pith:QUOK4F4T

pith:2015:QUOK4F4TIC6AXZ7B7WLI6URLLZ

not attested not anchored not stored refs pending

A Luminous Red Nova in M31 and its Progenitor System

I. A. Steele, M. F. Bode, M. J. Darnley, S. C. Williams

arxiv:1504.07747 v2 · 2015-04-29 · 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{QUOK4F4TIC6AXZ7B7WLI6URLLZ}

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	2026-05-18T01:59:34.674073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

851cae179340bc0be7e1fd968f522b5e7724e0a8752babfb0d69445de00160f9

Aliases

arxiv: 1504.07747 · arxiv_version: 1504.07747v2 · doi: 10.48550/arxiv.1504.07747 · pith_short_12: QUOK4F4TIC6A · pith_short_16: QUOK4F4TIC6AXZ7B · pith_short_8: QUOK4F4T

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/QUOK4F4TIC6AXZ7B7WLI6URLLZ \
  | 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: 851cae179340bc0be7e1fd968f522b5e7724e0a8752babfb0d69445de00160f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "712ce872c7251e1cf9ae37e6aa3f46c7df209471cd44fa15566297e3fd100a14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-29T07:50:37Z",
    "title_canon_sha256": "8d51c380761a7d71f4ad2fe070f6d099d64ef2ed6bca5b05878c72753fad6cdd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07747",
    "kind": "arxiv",
    "version": 2
  }
}