Pith Number

pith:QVO3GVGP

pith:2017:QVO3GVGP47WCXJF6COSUR33IJH

not attested not anchored not stored refs pending

Codes for Graph Erasures

Eitan Yaakobi, Lev Yohananov

arxiv:1705.02639 v2 · 2017-05-07 · cs.IT · 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{QVO3GVGP47WCXJF6COSUR33IJH}

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	2026-05-18T00:43:47.874566Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

855db354cfe7ec2ba4be13a548ef6849c1fe1efbd529387bb7f97dd88405dd37

Aliases

arxiv: 1705.02639 · arxiv_version: 1705.02639v2 · doi: 10.48550/arxiv.1705.02639 · pith_short_12: QVO3GVGP47WC · pith_short_16: QVO3GVGP47WCXJF6 · pith_short_8: QVO3GVGP

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/QVO3GVGP47WCXJF6COSUR33IJH \
  | 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: 855db354cfe7ec2ba4be13a548ef6849c1fe1efbd529387bb7f97dd88405dd37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42f42455e9e5d204092481552dfc0f0f48d1dee57084346d9e90ad1e0181b99f",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-07T15:47:51Z",
    "title_canon_sha256": "cdc75e2fdf410b23a925fc37c1b28ea614cf7427b4934d54e26d699bbc688bb3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.02639",
    "kind": "arxiv",
    "version": 2
  }
}