Pith Number

pith:AXFXTKBU

pith:2026:AXFXTKBUXLHUBRGIO35LDL37RQ

not attested not anchored not stored refs pending

Another Perspective on Chatterjea Contraction

Irfan Ahmed, Sahil Billawria, Shallu Sharma

arxiv:2605.21549 v1 · 2026-05-20 · math.FA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AXFXTKBUXLHUBRGIO35LDL37RQ}

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	2026-05-22T00:02:28.206482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

05cb79a834bacf40c4c876fab1af7f8c224d40b70e5922d2d8ef56851672467c

Aliases

arxiv: 2605.21549 · arxiv_version: 2605.21549v1 · doi: 10.48550/arxiv.2605.21549 · pith_short_12: AXFXTKBUXLHU · pith_short_16: AXFXTKBUXLHUBRGI · pith_short_8: AXFXTKBU

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/AXFXTKBUXLHUBRGIO35LDL37RQ \
  | 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: 05cb79a834bacf40c4c876fab1af7f8c224d40b70e5922d2d8ef56851672467c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5300f4298e18fa0e57635a0a1fbb5d6f5ce7332a5b5d1715738a08096128fb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2026-05-20T11:14:28Z",
    "title_canon_sha256": "4c7f702201421ac382b53f310dc1788617d9d4e683015e7409686ddcf6d54138"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21549",
    "kind": "arxiv",
    "version": 1
  }
}