Pith Number

pith:H25OFCHJ

pith:2018:H25OFCHJB2RJZOWXN4BOLPUA6R

not attested not anchored not stored refs pending

Ambitwistor string vertex operators on curved backgrounds

Eduardo Casali, Stefan Nekovar, Tim Adamo

arxiv:1809.04489 v1 · 2018-09-12 · 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{H25OFCHJB2RJZOWXN4BOLPUA6R}

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	2026-05-17T23:53:28.742869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ebae288e90ea29cbad76f02e5be80f4698b6430196ee91e9377cb88987ceae3

Aliases

arxiv: 1809.04489 · arxiv_version: 1809.04489v1 · doi: 10.48550/arxiv.1809.04489 · pith_short_12: H25OFCHJB2RJ · pith_short_16: H25OFCHJB2RJZOWX · pith_short_8: H25OFCHJ

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/H25OFCHJB2RJZOWXN4BOLPUA6R \
  | 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: 3ebae288e90ea29cbad76f02e5be80f4698b6430196ee91e9377cb88987ceae3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "571e1528f6fd77944cbba763ed34fecda6a16a5d5c3ac078540d394975916607",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2018-09-12T14:37:11Z",
    "title_canon_sha256": "c049960833aede9084dfa3c5d79052792be5f8e0f57a98289b240b61a65dd891"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.04489",
    "kind": "arxiv",
    "version": 1
  }
}