Pith Number

pith:64OXCSYA

pith:2016:64OXCSYABT5UYLKNYXCGI4FEMD

not attested not anchored not stored refs pending

Algebraic deRham cohomology of log-Riemann surfaces of finite type

Kingshook Biswas

arxiv:1602.08219 v2 · 2016-02-26 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64OXCSYABT5UYLKNYXCGI4FEMD}

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	2026-05-18T01:12:16.765394Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f71d714b000cfb4c2d4dc5c46470a460c2b64cd70f25d5e56fcca44b04cf999f

Aliases

arxiv: 1602.08219 · arxiv_version: 1602.08219v2 · doi: 10.48550/arxiv.1602.08219 · pith_short_12: 64OXCSYABT5U · pith_short_16: 64OXCSYABT5UYLKN · pith_short_8: 64OXCSYA

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/64OXCSYABT5UYLKNYXCGI4FEMD \
  | 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: f71d714b000cfb4c2d4dc5c46470a460c2b64cd70f25d5e56fcca44b04cf999f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb460e0b6489946537bc5e921d0f830c199a10f87a0fad02d8a0364e922d15a5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2016-02-26T07:15:40Z",
    "title_canon_sha256": "cbca3a4b66c126113f515ec30d9b97aefae6d771b4301c5e542546293c76a1f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.08219",
    "kind": "arxiv",
    "version": 2
  }
}