Pith Number

pith:CNHQI56C

pith:2007:CNHQI56CQ3BP2HK7SBTDYVNJRD

not attested not anchored not stored refs pending

Two-Loop Superstrings VII, Cohomology of Chiral Amplitudes

D.H. Phong, Eric D'Hoker

arxiv:0711.4314 v1 · 2007-11-27 · hep-th · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CNHQI56CQ3BP2HK7SBTDYVNJRD}

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	2026-07-04T15:30:46.926587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

134f0477c286c2fd1d5f90663c55a988c8c648d54ab22a2509ff7235cbb634e3

Aliases

arxiv: 0711.4314 · arxiv_version: 0711.4314v1 · doi: 10.48550/arxiv.0711.4314 · pith_short_12: CNHQI56CQ3BP · pith_short_16: CNHQI56CQ3BP2HK7 · pith_short_8: CNHQI56C

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/CNHQI56CQ3BP2HK7SBTDYVNJRD \
  | 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: 134f0477c286c2fd1d5f90663c55a988c8c648d54ab22a2509ff7235cbb634e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9efebc965922c4385bb0c24b6dde754fe4ac5705bcc61eb36c281a89f72ea573",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2007-11-27T18:10:13Z",
    "title_canon_sha256": "2aec53778a6b5b74b17e2524d5123c2826413db96063046c659d26bd4c721ebe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4314",
    "kind": "arxiv",
    "version": 1
  }
}