Pith Number

pith:HPA4GBTF

pith:2019:HPA4GBTFMK65UVO2ZX7F34EYP3

not attested not anchored not stored refs pending

Knotted Proteins: Tie Etiquette in Structural Biology

Ana Nunes, Patr\'icia FN Fa\'isca

arxiv:1906.08548 v1 · 2019-06-20 · q-bio.BM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPA4GBTFMK65UVO2ZX7F34EYP3}

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	2026-05-17T23:42:52.163344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bc1c3066562bdda55dacdfe5df0987eed35f967ee42a8d050af373738857ddc

Aliases

arxiv: 1906.08548 · arxiv_version: 1906.08548v1 · doi: 10.48550/arxiv.1906.08548 · pith_short_12: HPA4GBTFMK65 · pith_short_16: HPA4GBTFMK65UVO2 · pith_short_8: HPA4GBTF

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/HPA4GBTFMK65UVO2ZX7F34EYP3 \
  | 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: 3bc1c3066562bdda55dacdfe5df0987eed35f967ee42a8d050af373738857ddc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6302c91cb4e840e0a0a3bd92abcaa1dc90358aa994c4fc613d8fda17091d3a68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.BM",
    "submitted_at": "2019-06-20T10:48:27Z",
    "title_canon_sha256": "3d625d8437be865b94eb57a706a3d48cea7121e5d3a498bfaaf93e355397d48f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08548",
    "kind": "arxiv",
    "version": 1
  }
}