Pith Number

pith:RANSGI5R

pith:2021:RANSGI5RV2QSTXDPEDAZJJGBJP

not attested not anchored not stored refs pending

Flat Magic Window

Alessio D'Errico, Ebrahim Karimi, Fatimah Alsaiari, Felix Hufnagel, Hugo Larocque, Jeremy Upham

arxiv:2112.07053 v1 · 2021-12-13 · 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{RANSGI5RV2QSTXDPEDAZJJGBJP}

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	2026-07-05T03:40:20.470036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

881b2323b1aea129dc6f20c194a4c14be8bb5fe6d8e03419aedcfaf2e6c1d2fd

Aliases

arxiv: 2112.07053 · arxiv_version: 2112.07053v1 · doi: 10.48550/arxiv.2112.07053 · pith_short_12: RANSGI5RV2QS · pith_short_16: RANSGI5RV2QSTXDP · pith_short_8: RANSGI5R

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/RANSGI5RV2QSTXDPEDAZJJGBJP \
  | 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: 881b2323b1aea129dc6f20c194a4c14be8bb5fe6d8e03419aedcfaf2e6c1d2fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7283ca8f693faeee4f843a768999c96c878a5a93f9a2f03e1b50c8e5aff42966",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2021-12-13T22:37:16Z",
    "title_canon_sha256": "a12df22d6aa02fb8b9678dd1a3dcc58e8fbb60458c72241326254ef8fb4688bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.07053",
    "kind": "arxiv",
    "version": 1
  }
}