Pith Number

pith:A4G2EIAE

pith:2001:A4G2EIAEGTKFSB5ZV5CH4D22E7

not attested not anchored not stored refs pending

Unconstrained Variables of Non-Commutative Open Strings

I. V. Vancea, M. A. De Andrade, M. A. Santos

arxiv:hep-th/0104154 v1 · 2001-04-18 · 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{A4G2EIAEGTKFSB5ZV5CH4D22E7}

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	2026-05-18T01:38:54.718224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

070da2200434d45907b9af447e0f5a27f89548661180924d28b27695688532e5

Aliases

arxiv: hep-th/0104154 · arxiv_version: hep-th/0104154v1 · doi: 10.48550/arxiv.hep-th/0104154 · pith_short_12: A4G2EIAEGTKF · pith_short_16: A4G2EIAEGTKFSB5Z · pith_short_8: A4G2EIAE

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/A4G2EIAEGTKFSB5ZV5CH4D22E7 \
  | 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: 070da2200434d45907b9af447e0f5a27f89548661180924d28b27695688532e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "820797010037018a3874c38fbec670612b547c94fb7a7197fc40445f028dbf2d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2001-04-18T14:42:34Z",
    "title_canon_sha256": "f77d5d3a8c49f04af24d0eeb7875f7da2d2481014d016b77fb772ea4d23b9d95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0104154",
    "kind": "arxiv",
    "version": 1
  }
}