Pith Number

pith:BPBACKSF

pith:2015:BPBACKSFXANJ5I26XB7CQHWDHG

not attested not anchored not stored refs pending

Cohomology of the Moduli Space of Rank Two, Odd Degree Vector Bundles over a Real Curve

Thomas John Baird

arxiv:1508.02318 v3 · 2015-08-10 · math.SG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BPBACKSFXANJ5I26XB7CQHWDHG}

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	2026-05-18T01:10:40.048195Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bc2012a45b81a9ea35eb87e281ec339b4211119643e2c9b52ec6bc687c8c0a4

Aliases

arxiv: 1508.02318 · arxiv_version: 1508.02318v3 · doi: 10.48550/arxiv.1508.02318 · pith_short_12: BPBACKSFXANJ · pith_short_16: BPBACKSFXANJ5I26 · pith_short_8: BPBACKSF

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/BPBACKSFXANJ5I26XB7CQHWDHG \
  | 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: 0bc2012a45b81a9ea35eb87e281ec339b4211119643e2c9b52ec6bc687c8c0a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5702a2422a0195a09d06fd0206cc9e9ccc1809852f64ada31d54b34de3a3e67d",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "math.SG",
    "submitted_at": "2015-08-10T16:51:05Z",
    "title_canon_sha256": "7ce60a136947ce76782174edb77affc55247e0679688a1eb1c4efeb2e356d83d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.02318",
    "kind": "arxiv",
    "version": 3
  }
}