Pith Number

pith:4JTECV6V

pith:2016:4JTECV6VZOSM3X3ZYQQJXRBLPP

not attested not anchored not stored refs pending

Pyramids and cootie catchers: new massless fermions in 2D materials

Igor Popov, Rados Gajic, Vladimir Damljanovic

arxiv:1610.09804 v1 · 2016-10-31 · cond-mat.mtrl-sci

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4JTECV6VZOSM3X3ZYQQJXRBLPP}

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	2026-05-18T00:27:53.043307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2664157d5cba4cddf79c4209bc42b7bd81e041259f5d5f4fb9c3c7196ef160d

Aliases

arxiv: 1610.09804 · arxiv_version: 1610.09804v1 · doi: 10.48550/arxiv.1610.09804 · pith_short_12: 4JTECV6VZOSM · pith_short_16: 4JTECV6VZOSM3X3Z · pith_short_8: 4JTECV6V

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/4JTECV6VZOSM3X3ZYQQJXRBLPP \
  | 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: e2664157d5cba4cddf79c4209bc42b7bd81e041259f5d5f4fb9c3c7196ef160d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e184c638bfd8b7d5c88a5cb982f52657b8d939aeaccabdb298f43db99b2f165e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2016-10-31T06:39:35Z",
    "title_canon_sha256": "541f4c7d9ec6e823b1298f3be0a81f5e7ff1212321b77aa0ca8cb69b9fc3c09a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.09804",
    "kind": "arxiv",
    "version": 1
  }
}