Pith Number

pith:QC3CV22S

pith:2019:QC3CV22SOPFPDS6MG4SJFUORP6

not attested not anchored not stored refs pending

Topological Indices of Proteins

Antti J Niemi, Ara Sedrakyan, Dmitry Melnikov

arxiv:1903.04220 v1 · 2019-03-11 · q-bio.BM · cond-mat.soft

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QC3CV22SOPFPDS6MG4SJFUORP6}

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	2026-05-17T23:51:36.193507Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80b62aeb5273caf1cbcc372492d1d17fb5103caecda29399bef9817ccab05d25

Aliases

arxiv: 1903.04220 · arxiv_version: 1903.04220v1 · doi: 10.48550/arxiv.1903.04220 · pith_short_12: QC3CV22SOPFP · pith_short_16: QC3CV22SOPFPDS6M · pith_short_8: QC3CV22S

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/QC3CV22SOPFPDS6MG4SJFUORP6 \
  | 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: 80b62aeb5273caf1cbcc372492d1d17fb5103caecda29399bef9817ccab05d25

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cadd2aa868d3a5fb86dca5cc32fb4a08747d1eb47751096fa5d57e6bf052908",
    "cross_cats_sorted": [
      "cond-mat.soft"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2019-03-11T11:17:07Z",
    "title_canon_sha256": "2c5b1b36d506a3f53d0ea0c9d3c412dce573f98a1d41d30b9d2e29515c68637b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.04220",
    "kind": "arxiv",
    "version": 1
  }
}