Pith Number

pith:QEWUEVT4

pith:2019:QEWUEVT4X5ACP67XSN3ZKKIO2O

not attested not anchored not stored refs pending

The Integrable Optics Test Accelerator

Ben Freemire, Jeffrey Eldred

arxiv:1903.05780 v1 · 2019-03-14 · physics.acc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QEWUEVT4X5ACP67XSN3ZKKIO2O}

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	2026-05-17T23:51:16.243683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

812d42567cbf4027fbf7937795290ed38a778c30078da0444b5dbe2d422f785e

Aliases

arxiv: 1903.05780 · arxiv_version: 1903.05780v1 · doi: 10.48550/arxiv.1903.05780 · pith_short_12: QEWUEVT4X5AC · pith_short_16: QEWUEVT4X5ACP67X · pith_short_8: QEWUEVT4

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/QEWUEVT4X5ACP67XSN3ZKKIO2O \
  | 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: 812d42567cbf4027fbf7937795290ed38a778c30078da0444b5dbe2d422f785e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90a1c69b92002824bcb919a06640899ee306ce7353b86d06e41ea25219c26e71",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.acc-ph",
    "submitted_at": "2019-03-14T01:06:01Z",
    "title_canon_sha256": "e9d591eabe66c73a63608a41535ac8e9d70d8c093e510c9bf467694edd54d254"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05780",
    "kind": "arxiv",
    "version": 1
  }
}