Pith Number

pith:W6QNSEOF

pith:2011:W6QNSEOFNVJP6VFPRKWF3XKD4U

not attested not anchored not stored refs pending

The Dirac operator on untrapped surfaces

Simon Raulot (LMRS)

arxiv:1110.3395 v1 · 2011-10-15 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W6QNSEOFNVJP6VFPRKWF3XKD4U}

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	2026-05-18T02:51:06.753159Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7a0d911c56d52ff54af8aac5ddd43e52cf11cb1c42475e1df6a0f9cfecaddc4

Aliases

arxiv: 1110.3395 · arxiv_version: 1110.3395v1 · doi: 10.48550/arxiv.1110.3395 · pith_short_12: W6QNSEOFNVJP · pith_short_16: W6QNSEOFNVJP6VFP · pith_short_8: W6QNSEOF

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/W6QNSEOFNVJP6VFPRKWF3XKD4U \
  | 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: b7a0d911c56d52ff54af8aac5ddd43e52cf11cb1c42475e1df6a0f9cfecaddc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e7066a91a811ce46330e7b8685dc68ec119f165898b0650b1b4980691be3e5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-10-15T08:39:46Z",
    "title_canon_sha256": "4da717b9fb08d6fdac4b6fd6fe49e33257d5a5c25c88ae4bd76c7a28c889b35c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.3395",
    "kind": "arxiv",
    "version": 1
  }
}