Pith Number

pith:VGFMK7M4

pith:2016:VGFMK7M4IT62ZCXYH4WGGY5OTE

not attested not anchored not stored refs pending

Perturbation theory for string sigma models

Lorenzo Bianchi

arxiv:1604.01676 v2 · 2016-04-06 · 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{VGFMK7M4IT62ZCXYH4WGGY5OTE}

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	2026-05-18T00:50:47.794485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a98ac57d9c44fdac8af83f2c6363ae993cf8cb9b27d328dedbe77ab63c4edde8

Aliases

arxiv: 1604.01676 · arxiv_version: 1604.01676v2 · doi: 10.48550/arxiv.1604.01676 · pith_short_12: VGFMK7M4IT62 · pith_short_16: VGFMK7M4IT62ZCXY · pith_short_8: VGFMK7M4

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/VGFMK7M4IT62ZCXYH4WGGY5OTE \
  | 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: a98ac57d9c44fdac8af83f2c6363ae993cf8cb9b27d328dedbe77ab63c4edde8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d90f56ae556aa46749468a5cd5f4ef4bf54685cbca1d61696f5d9ed266db11b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2016-04-06T16:04:39Z",
    "title_canon_sha256": "c87e3a0ada611788f14556c8a8d09ee6f3dc50f253022b00f4bb85b73813b8b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.01676",
    "kind": "arxiv",
    "version": 2
  }
}