Pith Number

pith:TQQJQTH4

pith:2015:TQQJQTH4PH3X7LUIAWH5P76V4X

not attested not anchored not stored refs pending

Non-perturbative Calculation of the Positronium Mass Spectrum in Basis Light-Front Quantization

James P. Vary, Paul Wiecki, Pieter Maris, Xingbo Zhao, Yang Li

arxiv:1502.02993 v1 · 2015-02-10 · nucl-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{TQQJQTH4PH3X7LUIAWH5P76V4X}

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	2026-05-18T01:41:03.961167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c20984cfc79f77fae88058fd7ffd5e5fae2cc4c0515a0f29d20e0a4bc6c53cf

Aliases

arxiv: 1502.02993 · arxiv_version: 1502.02993v1 · doi: 10.48550/arxiv.1502.02993 · pith_short_12: TQQJQTH4PH3X · pith_short_16: TQQJQTH4PH3X7LUI · pith_short_8: TQQJQTH4

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/TQQJQTH4PH3X7LUIAWH5P76V4X \
  | 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: 9c20984cfc79f77fae88058fd7ffd5e5fae2cc4c0515a0f29d20e0a4bc6c53cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d9b238b252510d4b2cdbc84ebeb132fcc988f37cc654c49ba61be6b97cb076f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nucl-th",
    "submitted_at": "2015-02-10T17:09:04Z",
    "title_canon_sha256": "59e73f4023a550b6d39bd09dc95e090f35748c05605ad61994fff8ee11d6d441"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.02993",
    "kind": "arxiv",
    "version": 1
  }
}