Pith Number

pith:75DSP3G7

pith:2012:75DSP3G76BYULKYGSNM2ZUKS52

not attested not anchored not stored refs pending

The determinant on flat conic surfaces with excision of disks

David A. Sher

arxiv:1210.1631 v3 · 2012-10-05 · math.SP · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{75DSP3G76BYULKYGSNM2ZUKS52}

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	2026-05-18T03:32:44.750218Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff4727ecdff07145ab069359acd152ee8adad93dc7c111742f32b0632be4a78b

Aliases

arxiv: 1210.1631 · arxiv_version: 1210.1631v3 · doi: 10.48550/arxiv.1210.1631 · pith_short_12: 75DSP3G76BYU · pith_short_16: 75DSP3G76BYULKYG · pith_short_8: 75DSP3G7

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/75DSP3G76BYULKYGSNM2ZUKS52 \
  | 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: ff4727ecdff07145ab069359acd152ee8adad93dc7c111742f32b0632be4a78b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2fad21dc77aa30455189ecb056a3ff291b0f6958b847fc6a82680dec3e42514",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2012-10-05T02:44:43Z",
    "title_canon_sha256": "c0c77a132ae7b5513de5970c7efb872e8bb7513d20aeca26646a2ddbe2ff25c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.1631",
    "kind": "arxiv",
    "version": 3
  }
}