Pith Number

pith:6VPIG6L5

pith:2010:6VPIG6L5CB7KAL2GJ4TOKCX4JR

not attested not anchored not stored refs pending

The Overall Coefficient of the Two-loop Superstring Amplitude Using Pure Spinors

Carlos R. Mafra, Humberto Gomez

arxiv:1003.0678 v2 · 2010-03-02 · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6VPIG6L5CB7KAL2GJ4TOKCX4JR}

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	2026-05-18T02:08:47.341916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f55e83797d107ea02f464f26e50afc4c64e0721db03c210c6b8b1a5ab7c255e6

Aliases

arxiv: 1003.0678 · arxiv_version: 1003.0678v2 · doi: 10.48550/arxiv.1003.0678 · pith_short_12: 6VPIG6L5CB7K · pith_short_16: 6VPIG6L5CB7KAL2G · pith_short_8: 6VPIG6L5

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/6VPIG6L5CB7KAL2GJ4TOKCX4JR \
  | 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: f55e83797d107ea02f464f26e50afc4c64e0721db03c210c6b8b1a5ab7c255e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c06b56be99a05751f77b9ee0ab7f2211207e7437f62771dbd120768a77e35e45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2010-03-02T21:05:00Z",
    "title_canon_sha256": "b2051689de1e2063eafed4a9af0bfe5c86e8bc581bf4c3f1937ab1d7d98c9d47"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0678",
    "kind": "arxiv",
    "version": 2
  }
}