Pith Number

pith:ASTCEX2V

pith:2021:ASTCEX2VC7LWU6JN7KPWBNNSMJ

not attested not anchored not stored refs pending

The Fast Radio Burst-emitting magnetar SGR 1935+2154 -- proper motion and variability from long-term Hubble Space Telescope monitoring

A. A. Chrimes, A. J. Levan, A. S. Fruchter, C. Kouveliotou, J. D. Lyman, K. Wiersema

arxiv:2112.07023 v1 · 2021-12-13 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ASTCEX2VC7LWU6JN7KPWBNNSMJ}

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	2026-07-05T03:58:59.601156Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04a6225f5517d76a792dfa9f60b5b2627cbac2ff5c8d8e4467b45091155e0c9e

Aliases

arxiv: 2112.07023 · arxiv_version: 2112.07023v1 · doi: 10.48550/arxiv.2112.07023 · pith_short_12: ASTCEX2VC7LW · pith_short_16: ASTCEX2VC7LWU6JN · pith_short_8: ASTCEX2V

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/ASTCEX2VC7LWU6JN7KPWBNNSMJ \
  | 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: 04a6225f5517d76a792dfa9f60b5b2627cbac2ff5c8d8e4467b45091155e0c9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0a38e16766f02dca6d1eaf94042ef0fa487e0ac03dfa782f91c68c2a9b349c5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-12-13T21:19:58Z",
    "title_canon_sha256": "c3a6e7b8a788e117534783e55bbb1935a6b9637471024576153796cd75911868"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07023",
    "kind": "arxiv",
    "version": 1
  }
}