Pith Number

pith:O4PQDUHR

pith:2026:O4PQDUHRB7YLT5OIBFN5ZNBV6W

not attested not anchored not stored refs pending

Semi-analytical Light Curve Model for Transients Preceding Binary Mergers. I: Supernova Precursor Emission from Compact Object Companions

Daichi Tsuna, Morgan MacLeod, V. Ashley Villar

arxiv:2607.20599 v1 · 2026-07-22 · 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{O4PQDUHRB7YLT5OIBFN5ZNBV6W}

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	2026-07-24T00:23:24.641192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

771f01d0f10ff0b9f5c8095bdcb435f58ac7612a07a09832c6d5e23bd6e3b27d

Aliases

arxiv: 2607.20599 · arxiv_version: 2607.20599v1 · doi: 10.48550/arxiv.2607.20599 · pith_short_12: O4PQDUHRB7YL · pith_short_16: O4PQDUHRB7YLT5OI · pith_short_8: O4PQDUHR

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/O4PQDUHRB7YLT5OIBFN5ZNBV6W \
  | 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: 771f01d0f10ff0b9f5c8095bdcb435f58ac7612a07a09832c6d5e23bd6e3b27d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9fbdc2f14af37d9def79d081db635d19a8a900ec874fa7cb732606d6ebfa1eb1",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-07-22T18:00:00Z",
    "title_canon_sha256": "7899aff1e66fb5ae7e8b4e66b586927409b450729c11df75ead7665acdce0578"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.20599",
    "kind": "arxiv",
    "version": 1
  }
}