Pith Number

pith:EMBCWCRJ

pith:2025:EMBCWCRJFCFQW4TBG7LMQLVWOC

not attested not anchored not stored refs pending

Multiple Outbursts of Halley-Type Comet 12P/Pons-Brooks

David Jewitt, Jane Luu

arxiv:2504.20316 v1 · 2025-04-29 · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EMBCWCRJFCFQW4TBG7LMQLVWOC}

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	2026-07-05T10:55:40.546964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23022b0a29288b0b726137d6c82eb670871f2d5647341cd99e09aa439beb7971

Aliases

arxiv: 2504.20316 · arxiv_version: 2504.20316v1 · doi: 10.48550/arxiv.2504.20316 · pith_short_12: EMBCWCRJFCFQ · pith_short_16: EMBCWCRJFCFQW4TB · pith_short_8: EMBCWCRJ

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/EMBCWCRJFCFQW4TBG7LMQLVWOC \
  | 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: 23022b0a29288b0b726137d6c82eb670871f2d5647341cd99e09aa439beb7971

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7907f44a006f2ce4d139fa036b08b625487911dab269df4aa5704f68892353b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2025-04-29T00:02:07Z",
    "title_canon_sha256": "2a4a175805886666ac851fa2fc8b6c9cfe97d171980eb0617ca4545476b893b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20316",
    "kind": "arxiv",
    "version": 1
  }
}