Pith Number

pith:2XFLA5B2

pith:2015:2XFLA5B2XW2AE2NSSY5OQDIGI4

not attested not anchored not stored refs pending

The Discrete Fr\'echet Gap

Matthew J. Katz, Omrit Filtser

arxiv:1506.04861 v1 · 2015-06-16 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2XFLA5B2XW2AE2NSSY5OQDIGI4}

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	2026-05-18T01:48:05.689056Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5cab0743abdb40269b2963ae80d06470febf50f7a3ee7b80bcae604ee465fdd

Aliases

arxiv: 1506.04861 · arxiv_version: 1506.04861v1 · doi: 10.48550/arxiv.1506.04861 · pith_short_12: 2XFLA5B2XW2A · pith_short_16: 2XFLA5B2XW2AE2NS · pith_short_8: 2XFLA5B2

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/2XFLA5B2XW2AE2NSSY5OQDIGI4 \
  | 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: d5cab0743abdb40269b2963ae80d06470febf50f7a3ee7b80bcae604ee465fdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc600ba8a9ca09402520ec7f93813ef71ba14275846733a3d5dba56270ac7db6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-06-16T07:19:26Z",
    "title_canon_sha256": "7e89e9cfdf9945aecb3a61e25d1eeb38c57fa1b020e914705055635040c66859"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04861",
    "kind": "arxiv",
    "version": 1
  }
}