Pith Number

pith:HJKLHFMC

pith:2015:HJKLHFMCAE3ZA65J3CR63RCT4Z

not attested not anchored not stored refs pending

On the halphen transform of algebraic space curves

Alfrederic Josse (LMBA), Fran\c{c}oise P\`ene (LMBA)

arxiv:1506.08949 v1 · 2015-06-30 · 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{HJKLHFMCAE3ZA65J3CR63RCT4Z}

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	2026-05-18T01:37:34.021774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a54b395820137907ba9d8a3edc453e65ece5437dab461e2ae63734b468ba55c

Aliases

arxiv: 1506.08949 · arxiv_version: 1506.08949v1 · doi: 10.48550/arxiv.1506.08949 · pith_short_12: HJKLHFMCAE3Z · pith_short_16: HJKLHFMCAE3ZA65J · pith_short_8: HJKLHFMC

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/HJKLHFMCAE3ZA65J3CR63RCT4Z \
  | 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: 3a54b395820137907ba9d8a3edc453e65ece5437dab461e2ae63734b468ba55c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83faf1f812ee46862496e68bf4ce51cf098dbed3b5d61e20170017c4f98bc700",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2015-06-30T06:08:59Z",
    "title_canon_sha256": "8db45f29e14754ea7f52ee860ffbc3e0b97ddd8d2c9d62399c0c71f586aed1be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.08949",
    "kind": "arxiv",
    "version": 1
  }
}