Pith Number

pith:RHMRE32X

pith:2013:RHMRE32XUBK5K34JBJTVLT2YUR

not attested not anchored not stored refs pending

Steenbrink vanishing extended

S\'andor J Kov\'acs

arxiv:1307.7503 v2 · 2013-07-29 · math.AG

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

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	2026-05-18T03:15:42.909232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89d9126f57a055d56f890a6755cf58a458f0d0400a0d057f4ced3d6fa9317fd2

Aliases

arxiv: 1307.7503 · arxiv_version: 1307.7503v2 · doi: 10.48550/arxiv.1307.7503 · pith_short_12: RHMRE32XUBK5 · pith_short_16: RHMRE32XUBK5K34J · pith_short_8: RHMRE32X

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/RHMRE32XUBK5K34JBJTVLT2YUR \
  | 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: 89d9126f57a055d56f890a6755cf58a458f0d0400a0d057f4ced3d6fa9317fd2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61aaf1ed004de40368d572910bd72a64ef99b2bbe5328596a6747d68fa2e72de",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-07-29T08:54:42Z",
    "title_canon_sha256": "f3636c7a21ceda6c3006424df0640069f1e40b35a0a597e1894115d3c2776bb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7503",
    "kind": "arxiv",
    "version": 2
  }
}