Pith Number

pith:BPBHBGCF

pith:2015:BPBHBGCFK54URG62WKWHBWC2GR

not attested not anchored not stored refs pending

Intersection numbers on the relative Hilbert schemes of points on surfaces

Amin Gholampour, Artan Sheshmani

arxiv:1504.01107 v2 · 2015-04-05 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BPBHBGCFK54URG62WKWHBWC2GR}

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	2026-05-18T00:40:52.017116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0bc27098455779489bdab2ac70d85a346f8967843dc76ca863d2f547ce096bd1

Aliases

arxiv: 1504.01107 · arxiv_version: 1504.01107v2 · doi: 10.48550/arxiv.1504.01107 · pith_short_12: BPBHBGCFK54U · pith_short_16: BPBHBGCFK54URG62 · pith_short_8: BPBHBGCF

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/BPBHBGCFK54URG62WKWHBWC2GR \
  | 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: 0bc27098455779489bdab2ac70d85a346f8967843dc76ca863d2f547ce096bd1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "680172723906d441285ebfe8de18bda27de0eda96a91bb08ec7b7d2fbb16e4e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-04-05T10:22:21Z",
    "title_canon_sha256": "4824e5804b673bb1062310681e06ec626729c6cb718fb70384fcd4bb9ea08fa6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.01107",
    "kind": "arxiv",
    "version": 2
  }
}