Pith Number

pith:HQ2DZUR5

pith:2015:HQ2DZUR5J2EFIGZ26EG3WREJT4

not attested not anchored not stored refs pending

The Amplituhedron and the One-loop Grassmannian Measure

Song He, Thomas Lam, Yuntao Bai

arxiv:1510.03553 v1 · 2015-10-13 · hep-th · math.AG · math.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQ2DZUR5J2EFIGZ26EG3WREJT4}

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	2026-05-18T01:20:33.795920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c343cd23d4e88541b3af10dbb44899f23a788b8934769bfef08cffd26b26e19

Aliases

arxiv: 1510.03553 · arxiv_version: 1510.03553v1 · doi: 10.48550/arxiv.1510.03553 · pith_short_12: HQ2DZUR5J2EF · pith_short_16: HQ2DZUR5J2EFIGZ2 · pith_short_8: HQ2DZUR5

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/HQ2DZUR5J2EFIGZ26EG3WREJT4 \
  | 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: 3c343cd23d4e88541b3af10dbb44899f23a788b8934769bfef08cffd26b26e19

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ef7d370bf75bf6a69d02519e9d69d8d813662824b4685d653b85e21d6bae84b",
    "cross_cats_sorted": [
      "math.AG",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-10-13T07:04:04Z",
    "title_canon_sha256": "23005f2e3f544f00009328895877bedd7a077400d42d7b76d7ad5765ee144277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.03553",
    "kind": "arxiv",
    "version": 1
  }
}