Pith Number

pith:7ZQ4DBPP

pith:2021:7ZQ4DBPP2KCVCG5VXMWHD3JAYL

not attested not anchored not stored refs pending

The Simons Observatory: HoloSim-ML: machine learning applied to the efficient analysis of radio holography measurements of complex optical systems

Alexandre E. Adler, Bradley R. Johnson, Edward J. Wollack, Federico Nati, Giuseppe Puglisi, Grace E. Chesmore, Jeff McMahon, Jon Gudmundsson, Kevin Wolz, Michael D. Niemack, Michele Limon, Nadia Dachlythra, Nicholas F. Cothard, Ningfeng Zhu, Patricio A. Gallardo, Sara M. Simon, Zhilei Xu

arxiv:2107.04138 v2 · 2021-07-08 · astro-ph.IM · eess.IV · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7ZQ4DBPP2KCVCG5VXMWHD3JAYL}

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	2026-07-05T03:21:54.455432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe61c185efd285511bb5bb2c71ed20c2cfecf0781609a642a95dc33fe0658f07

Aliases

arxiv: 2107.04138 · arxiv_version: 2107.04138v2 · doi: 10.48550/arxiv.2107.04138 · pith_short_12: 7ZQ4DBPP2KCV · pith_short_16: 7ZQ4DBPP2KCVCG5V · pith_short_8: 7ZQ4DBPP

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/7ZQ4DBPP2KCVCG5VXMWHD3JAYL \
  | 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: fe61c185efd285511bb5bb2c71ed20c2cfecf0781609a642a95dc33fe0658f07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d871a9695405b9e6da6d50740a1762c6b73f49519badd9b7e178d5fce9f37d5f",
    "cross_cats_sorted": [
      "eess.IV",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-07-08T22:41:13Z",
    "title_canon_sha256": "cb87b6cf70589999bec70142a655c053d0b6539fba4bfa86ed5041f5d4ccf47d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.04138",
    "kind": "arxiv",
    "version": 2
  }
}