Pith Number

pith:4YIHG2HW

pith:2017:4YIHG2HWDEYP5EI7DWBRIX77GM

not attested not anchored not stored refs pending

Codes on graphs: Models for elementary algebraic topology and statistical physics

G. David Forney Jr

arxiv:1707.06621 v2 · 2017-07-20 · cs.IT · cond-mat.stat-mech · cs.SY · 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{4YIHG2HWDEYP5EI7DWBRIX77GM}

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	2026-05-17T23:57:59.800957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6107368f61930fe911f1d83145fff330e486c8d47d65a269f756bf254439866

Aliases

arxiv: 1707.06621 · arxiv_version: 1707.06621v2 · doi: 10.48550/arxiv.1707.06621 · pith_short_12: 4YIHG2HWDEYP · pith_short_16: 4YIHG2HWDEYP5EI7 · pith_short_8: 4YIHG2HW

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/4YIHG2HWDEYP5EI7DWBRIX77GM \
  | 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: e6107368f61930fe911f1d83145fff330e486c8d47d65a269f756bf254439866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f50af70243f77d7d0d637adaed61c698ea33240342c759bb488b2f221fb60de",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.SY",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-07-20T17:28:14Z",
    "title_canon_sha256": "7a93972ffbb875eb9ab60a71d14bccbd885fa95f8a62746bcc212c2bc37228d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06621",
    "kind": "arxiv",
    "version": 2
  }
}