Pith Number

pith:7VLM25RF

pith:2015:7VLM25RFNXG6JPHLPCJGZAKVBT

not attested not anchored not stored refs pending

Some tree-level string amplitudes in the NSR formalism

Andrew B. Royston, Daniel Robbins, Ilarion V. Melnikov, Katrin Becker, Melanie Becker

arxiv:1507.02172 v4 · 2015-07-08 · 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{7VLM25RFNXG6JPHLPCJGZAKVBT}

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	2026-05-18T01:08:31.108040Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd56cd76256dcde4bceb78926c81550cfe5c2782fdf74d3474ac79b93c420327

Aliases

arxiv: 1507.02172 · arxiv_version: 1507.02172v4 · doi: 10.48550/arxiv.1507.02172 · pith_short_12: 7VLM25RFNXG6 · pith_short_16: 7VLM25RFNXG6JPHL · pith_short_8: 7VLM25RF

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/7VLM25RFNXG6JPHLPCJGZAKVBT \
  | 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: fd56cd76256dcde4bceb78926c81550cfe5c2782fdf74d3474ac79b93c420327

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57ebbd091c28a5e53144e9d3173961507e80284fbf0c1556df809fd13373bddf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-07-08T14:30:11Z",
    "title_canon_sha256": "3828977c973a7221dfd0204c6476cfb931d3e3cc279529aacad92ee1e05a4c17"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.02172",
    "kind": "arxiv",
    "version": 4
  }
}