Pith Number

pith:4FJYLQTX

pith:2021:4FJYLQTXRS6SL7YB73UTXM3J2M

not attested not anchored not stored refs pending

A Nascent Tidal Dwarf Galaxy Forming within the Northern HI Streamer of M82

Allison Merritt, Ava Polzin, Deborah Lokhorst, Erin Lippitt, Imad Pasha, Jielai Zhang, Johnny Greco, Michael A. Keim, Pieter G. van Dokkum, Qing Liu, Roberto Abraham, Seery Chen, Shany Danieli, Tim Miller, Zili Shen

arxiv:2112.07052 v1 · 2021-12-13 · 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{4FJYLQTXRS6SL7YB73UTXM3J2M}

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	2026-07-05T03:42:57.276484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e15385c2778cbd25ff01fee93bb369d334b219381de099c59ad816ccf8d5995e

Aliases

arxiv: 2112.07052 · arxiv_version: 2112.07052v1 · doi: 10.48550/arxiv.2112.07052 · pith_short_12: 4FJYLQTXRS6S · pith_short_16: 4FJYLQTXRS6SL7YB · pith_short_8: 4FJYLQTX

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/4FJYLQTXRS6SL7YB73UTXM3J2M \
  | 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: e15385c2778cbd25ff01fee93bb369d334b219381de099c59ad816ccf8d5995e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63c32750265a1ce0e0217ad1a483e3e2761c26e52ac5c604504e095c90d98286",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-12-13T22:36:44Z",
    "title_canon_sha256": "ac79b87f0cf3bf49a8ffdf3067cddd31e0323564663e2113cb878869b2a0997f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07052",
    "kind": "arxiv",
    "version": 1
  }
}