Pith Number

pith:WW6HRY2I

pith:2007:WW6HRY2IPPGAFQJNMMGJA6VAQ5

not attested not anchored not stored refs pending

Axiomatic Characterization of Ordinary Differential Cohomology

Dennis Sullivan, James Simons

arxiv:math/0701077 v1 · 2007-01-03 · math.AT · math.QA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WW6HRY2IPPGAFQJNMMGJA6VAQ5}

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	2026-05-18T02:57:45.331067Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5bc78e3487bcc02c12d630c907aa08744f13671e7d62f9e596c8717d46b0bd1

Aliases

arxiv: math/0701077 · arxiv_version: math/0701077v1 · doi: 10.48550/arxiv.math/0701077 · pith_short_12: WW6HRY2IPPGA · pith_short_16: WW6HRY2IPPGAFQJN · pith_short_8: WW6HRY2I

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/WW6HRY2IPPGAFQJNMMGJA6VAQ5 \
  | 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: b5bc78e3487bcc02c12d630c907aa08744f13671e7d62f9e596c8717d46b0bd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fda3d63d2795cef84e8279c0a3f9f07455fa005464e69f3a5438d0047048188a",
    "cross_cats_sorted": [
      "math.QA"
    ],
    "license": "",
    "primary_cat": "math.AT",
    "submitted_at": "2007-01-03T17:36:14Z",
    "title_canon_sha256": "179aed1750cf015c5e3dd8bd9a70c1769bac0141a0a7673ce1c744c810014859"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0701077",
    "kind": "arxiv",
    "version": 1
  }
}