Pith Number

pith:YVYCXW2D

pith:2019:YVYCXW2DYLN3ADVTP5OQ6KDCB7

not attested not anchored not stored refs pending

On Decoding Cohen-Haeupler-Schulman Tree Codes

Anand Kumar Narayanan, Matthew Weidner

arxiv:1909.07413 v1 · 2019-09-16 · cs.IT · cs.CC · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YVYCXW2DYLN3ADVTP5OQ6KDCB7}

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	2026-07-05T00:04:57.187025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5702bdb43c2dbb00eb37f5d0f28620fe0c45c8c023487b6de81503ff29e4c8e

Aliases

arxiv: 1909.07413 · arxiv_version: 1909.07413v1 · doi: 10.48550/arxiv.1909.07413 · pith_short_12: YVYCXW2DYLN3 · pith_short_16: YVYCXW2DYLN3ADVT · pith_short_8: YVYCXW2D

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/YVYCXW2DYLN3ADVTP5OQ6KDCB7 \
  | 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: c5702bdb43c2dbb00eb37f5d0f28620fe0c45c8c023487b6de81503ff29e4c8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f50e9346f5a577517706ddab64f7a5a3ad8f081440489141c554b3a038e34235",
    "cross_cats_sorted": [
      "cs.CC",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-09-16T18:05:56Z",
    "title_canon_sha256": "0d29d1814ed0a7715554422177867314e54373f16607f7ab449e77775268cfec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.07413",
    "kind": "arxiv",
    "version": 1
  }
}