Pith Number

pith:MVHPWZQ2

pith:2022:MVHPWZQ2FB55UR7SVZTVO6MPJ3

not attested not anchored not stored refs pending

A giant shell of ionized gas discovered near M82 with the Dragonfly Spectral Line Mapper pathfinder

Allison Merritt, Charlie Conroy, Deborah Lokhorst, Imad Pasha, Jielai Zhang, Johnny Greco, Pieter van Dokkum, Roberto Abraham, Seery Chen, Shany Danieli, Tim Miller

arxiv:2203.04933 v1 · 2022-03-09 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MVHPWZQ2FB55UR7SVZTVO6MPJ3}

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	2026-07-05T04:04:06.992149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

654efb661a287bda47f2ae6757798f4ec9a305e6e7df5c25d507c5feb046e88a

Aliases

arxiv: 2203.04933 · arxiv_version: 2203.04933v1 · doi: 10.48550/arxiv.2203.04933 · pith_short_12: MVHPWZQ2FB55 · pith_short_16: MVHPWZQ2FB55UR7S · pith_short_8: MVHPWZQ2

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/MVHPWZQ2FB55UR7SVZTVO6MPJ3 \
  | 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: 654efb661a287bda47f2ae6757798f4ec9a305e6e7df5c25d507c5feb046e88a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87507816dea2f664a3b9f1518215f443e208bae258649332d4dea4851f9cb1be",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-03-09T18:29:02Z",
    "title_canon_sha256": "69792ab56afd200e8529d47275aec876a21850fa81658e4fd03957fedceecc9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.04933",
    "kind": "arxiv",
    "version": 1
  }
}