Pith Number

pith:R4HBQ7L5

pith:2017:R4HBQ7L5ZL3Q7J2Z2QDUSCZPIS

not attested not anchored not stored refs pending

Superfluidity of Dipolar Excitons in a Black Phosphorene Double Layer

Godfrey Gumbs, Oleg L. Berman, Roman Ya. Kezerashvili

arxiv:1704.04569 v2 · 2017-04-15 · cond-mat.mes-hall

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4HBQ7L5ZL3Q7J2Z2QDUSCZPIS}

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	2026-05-18T00:33:18.740375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f0e187d7dcaf70fa759d407490b2f44894fc2e805aed3f6d4456f9317947c60

Aliases

arxiv: 1704.04569 · arxiv_version: 1704.04569v2 · doi: 10.48550/arxiv.1704.04569 · pith_short_12: R4HBQ7L5ZL3Q · pith_short_16: R4HBQ7L5ZL3Q7J2Z · pith_short_8: R4HBQ7L5

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/R4HBQ7L5ZL3Q7J2Z2QDUSCZPIS \
  | 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: 8f0e187d7dcaf70fa759d407490b2f44894fc2e805aed3f6d4456f9317947c60

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0423a3682f676acf7a461a0ba4bdf545bf1db9abe25b7e9cd3ba1567e125eee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2017-04-15T03:05:58Z",
    "title_canon_sha256": "271a419133b96815e4d47c0d81a0a82c5940af5d31d2819d315606ad46a64888"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04569",
    "kind": "arxiv",
    "version": 2
  }
}