Pith Number

pith:I2SNVGHF

pith:2008:I2SNVGHFBAWQHTKQKFKIIWVWXV

not attested not anchored not stored refs pending

Heat and Gravitation. I. The Action Principle

Christian Fr{\o}nsdal

arxiv:0812.4990 v3 · 2008-12-30 · physics.gen-ph · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I2SNVGHFBAWQHTKQKFKIIWVWXV}

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	2026-05-18T02:15:03.677289Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46a4da98e5082d03cd505154845ab6bd6644309fcf52c0144ec0619e662450f5

Aliases

arxiv: 0812.4990 · arxiv_version: 0812.4990v3 · doi: 10.48550/arxiv.0812.4990 · pith_short_12: I2SNVGHFBAWQ · pith_short_16: I2SNVGHFBAWQHTKQ · pith_short_8: I2SNVGHF

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/I2SNVGHFBAWQHTKQKFKIIWVWXV \
  | 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: 46a4da98e5082d03cd505154845ab6bd6644309fcf52c0144ec0619e662450f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6e145f88dc9bbe2a20cf578abe7f3942246126f667f8f387a9a9eace5c7a21d",
    "cross_cats_sorted": [
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2008-12-30T18:18:15Z",
    "title_canon_sha256": "ddcdee4b093b3ce8e477bed4bea2060d5473d760cd378c80cef4913bc0da65f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.4990",
    "kind": "arxiv",
    "version": 3
  }
}