Pith Number

pith:EGXP4X4U

pith:2013:EGXP4X4UKZSAIP5R6VYNTV4D6L

not attested not anchored not stored refs pending

A Tale Of Two Amplitudes In High Energy Physics

Yun Zhang

arxiv:1305.6227 v1 · 2013-05-27 · 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{EGXP4X4UKZSAIP5R6VYNTV4D6L}

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	2026-05-18T03:24:51.862928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21aefe5f945664043fb1f570d9d783f2cbafea16f50a54c0410110b4c592e643

Aliases

arxiv: 1305.6227 · arxiv_version: 1305.6227v1 · doi: 10.48550/arxiv.1305.6227 · pith_short_12: EGXP4X4UKZSA · pith_short_16: EGXP4X4UKZSAIP5R · pith_short_8: EGXP4X4U

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/EGXP4X4UKZSAIP5R6VYNTV4D6L \
  | 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: 21aefe5f945664043fb1f570d9d783f2cbafea16f50a54c0410110b4c592e643

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9422d3405f06699f9192f39618ac6f720aa89a1a4d574a4e296452c27d143958",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-05-27T14:09:58Z",
    "title_canon_sha256": "0485d20f976cc0e1b23df88062bb40273e9ca46881a0c3e21a5eabf66c658f37"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.6227",
    "kind": "arxiv",
    "version": 1
  }
}