Pith Number

pith:3PUEAAEW

pith:2019:3PUEAAEWX26DMIN2J3VSEMTMXD

not attested not anchored not stored refs pending

Evolution of the disk of pi Aqr: from near-disappearance to a strong maximum

A. De Bruin, A. Favaro, A. Stiewing, B. Mauclaire, C.J. Sawicki, C. Kreider, C.T. Quandt, E. Bertrand, E. Bryssinck, E. Pollmann, F. Houpert, G. Rauw, J. Daglen, J .Guarro Flo, J. Montier, J.N. Terry, K. Graham, M. Leonardi, M. Mannucci, M. Moll, M. Pujol, N. Montigiani, O. Garde, O. Thizy, P. Berardi, P. Fosanelli, P. Lailly, T. Bohlsen, T. Lemoult, T. Lester, T. Rodda, V. Desnoux, Y. Naze

arxiv:1906.09030 v1 · 2019-06-21 · 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{3PUEAAEWX26DMIN2J3VSEMTMXD}

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	2026-05-17T23:42:44.769876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbe8400096bebc3621ba4eeb22326cb8f97a8863b4f432f8553f5519749cfa08

Aliases

arxiv: 1906.09030 · arxiv_version: 1906.09030v1 · doi: 10.48550/arxiv.1906.09030 · pith_short_12: 3PUEAAEWX26D · pith_short_16: 3PUEAAEWX26DMIN2 · pith_short_8: 3PUEAAEW

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/3PUEAAEWX26DMIN2J3VSEMTMXD \
  | 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: dbe8400096bebc3621ba4eeb22326cb8f97a8863b4f432f8553f5519749cfa08

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a68f170ef9b1a51107df36556a6ce0c8ff7b2e024c1cab732ac2f9327a63096",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-06-21T09:46:44Z",
    "title_canon_sha256": "6611db4d7d57eacc4cfb33141b32e9359f05e664dc39094fde0969a44b47fdca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.09030",
    "kind": "arxiv",
    "version": 1
  }
}