Pith Number

pith:DJR2XDOI

pith:2019:DJR2XDOIELSF2YDN34YSEKDHJC

not attested not anchored not stored refs pending

Observation of a possible superflare on Proxima Centauri

Bradley D. Carter, John F. Kielkopf, Rhodes Hart, Stephen C. Marsden

arxiv:1904.06875 v1 · 2019-04-15 · 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{DJR2XDOIELSF2YDN34YSEKDHJC}

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	2026-05-17T23:47:55.510810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a63ab8dc822e45d606ddf3122286748aeec0b00092115513d70b5d80d63fb5c

Aliases

arxiv: 1904.06875 · arxiv_version: 1904.06875v1 · doi: 10.48550/arxiv.1904.06875 · pith_short_12: DJR2XDOIELSF · pith_short_16: DJR2XDOIELSF2YDN · pith_short_8: DJR2XDOI

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/DJR2XDOIELSF2YDN34YSEKDHJC \
  | 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: 1a63ab8dc822e45d606ddf3122286748aeec0b00092115513d70b5d80d63fb5c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7eb66135a445cbf213593e101d6f91fbeed5217c88259ab365bd2ebe35c5153d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-04-15T06:44:01Z",
    "title_canon_sha256": "d0088fb2991dc3b6a481fbcc409d342451e4e98c4425de2d9e57c78453ecff5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.06875",
    "kind": "arxiv",
    "version": 1
  }
}