Pith Number

pith:HH4L2X5S

pith:2015:HH4L2X5SRISTMYJXERSF4Y3GWY

not attested not anchored not stored refs pending

Tensor Numerical Methods in Quantum Chemistry: from Hartree-Fock Energy to Excited States

Boris N. Khoromskij, Venera Khoromskaia

arxiv:1504.06289 v1 · 2015-04-23 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HH4L2X5SRISTMYJXERSF4Y3GWY}

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	2026-05-18T01:22:21.215658Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39f8bd5fb28a2536613724645e6366b62f6b546998c0e997263268a0d501146b

Aliases

arxiv: 1504.06289 · arxiv_version: 1504.06289v1 · doi: 10.48550/arxiv.1504.06289 · pith_short_12: HH4L2X5SRIST · pith_short_16: HH4L2X5SRISTMYJX · pith_short_8: HH4L2X5S

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/HH4L2X5SRISTMYJXERSF4Y3GWY \
  | 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: 39f8bd5fb28a2536613724645e6366b62f6b546998c0e997263268a0d501146b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35dfbd46963985d7c2a54734c16ca187a4b7898acd16c0117e9640f64f0fab9c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-04-23T18:34:37Z",
    "title_canon_sha256": "79dd256d1adcc3f3128e116ecee91c447ef075796c8dba6fa77521aee705f41b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06289",
    "kind": "arxiv",
    "version": 1
  }
}