Pith Number

pith:C6HOEDSC

pith:2019:C6HOEDSC3CRE4K7L6GGIJP4BIY

not attested not anchored not stored refs pending

Supertwistor description of ambitwistor strings

Lionel Mason, Max Guillen, Nathan Berkovits

arxiv:1908.06899 v1 · 2019-08-19 · 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{C6HOEDSC3CRE4K7L6GGIJP4BIY}

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	2026-07-05T00:36:31.970690Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

178ee20e42d8a24e2bebf18c84bf814616b9bb05f9af300b07bcdc1d18af2ed4

Aliases

arxiv: 1908.06899 · arxiv_version: 1908.06899v1 · doi: 10.48550/arxiv.1908.06899 · pith_short_12: C6HOEDSC3CRE · pith_short_16: C6HOEDSC3CRE4K7L · pith_short_8: C6HOEDSC

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/C6HOEDSC3CRE4K7L6GGIJP4BIY \
  | 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: 178ee20e42d8a24e2bebf18c84bf814616b9bb05f9af300b07bcdc1d18af2ed4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "67428049f5ec4437e38cd236dcee5c62adf86bb0e693b851b2233e5a46a5018f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-08-19T15:58:07Z",
    "title_canon_sha256": "669e26d74d5ea3826133bcd086368e7d89628676a1cc42876cf46f1ee4babe58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.06899",
    "kind": "arxiv",
    "version": 1
  }
}