Pith Number

pith:IYENGTS4

pith:2010:IYENGTS4WPC4QXL6MCRVVMPRVU

not attested not anchored not stored refs pending

Hamilton type estimates for heat equations on manifolds

Li Ma

arxiv:1009.0603 v2 · 2010-09-03 · math.DG

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	2026-05-18T01:22:44.272119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4608d34e5cb3c5c85d7e60a35ab1f1ad3dd71633a2c68e1eb5ae6e28c0a03a39

Aliases

arxiv: 1009.0603 · arxiv_version: 1009.0603v2 · doi: 10.48550/arxiv.1009.0603 · pith_short_12: IYENGTS4WPC4 · pith_short_16: IYENGTS4WPC4QXL6 · pith_short_8: IYENGTS4

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/IYENGTS4WPC4QXL6MCRVVMPRVU \
  | 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: 4608d34e5cb3c5c85d7e60a35ab1f1ad3dd71633a2c68e1eb5ae6e28c0a03a39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b5afb855ff87998ed7a6b50d763b082664ea16ba853ffe0afffaeaa743b8bba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-09-03T08:24:39Z",
    "title_canon_sha256": "17144e48eb3da26ad3bbcf1c6e7d363031dddf27f863e4e63eea23e493b9e4e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.0603",
    "kind": "arxiv",
    "version": 2
  }
}