Pith Number

pith:UPITT3J2

pith:2016:UPITT3J2XSYONWWGPXKJ2A553V

not attested not anchored not stored refs pending

On Parametric Spaces of Bicentric Quadrilaterals

Allan J. MacLeod, Arman Shamsi Zargar, Farzali Izadi, Foad Khoshnam

arxiv:1604.02104 v1 · 2016-04-07 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UPITT3J2XSYONWWGPXKJ2A553V}

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	2026-05-18T01:17:31.270795Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3d139ed3abcb0e6dac67dd49d03bddd7b52ede216d54817063d29d593ae28a0

Aliases

arxiv: 1604.02104 · arxiv_version: 1604.02104v1 · doi: 10.48550/arxiv.1604.02104 · pith_short_12: UPITT3J2XSYO · pith_short_16: UPITT3J2XSYONWWG · pith_short_8: UPITT3J2

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/UPITT3J2XSYONWWGPXKJ2A553V \
  | 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: a3d139ed3abcb0e6dac67dd49d03bddd7b52ede216d54817063d29d593ae28a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b4b4e84e63dbfbaa6202a54df3e54ebfba0579e2b89378bb234ef767ac710c28",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2016-04-07T18:36:51Z",
    "title_canon_sha256": "899d9b8ea86602c92667991ca0a7aae7f5a636dcb7856f4093b0a10004bbf919"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.02104",
    "kind": "arxiv",
    "version": 1
  }
}