Pith Number

pith:ZR2VCGEW

pith:2008:ZR2VCGEWNG4YJBCSJIHZL5MKIS

not attested not anchored not stored refs pending

Gravitational fields as generalized string models

Francisco J. Hernandez, Francisco Nettel, Hernando Quevedo

arxiv:0809.4495 v1 · 2008-09-25 · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZR2VCGEWNG4YJBCSJIHZL5MKIS}

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	2026-05-18T04:27:45.762812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc7551189669b98484524a0f95f58a448acc636b39830c0a76ea7e9bed2a0ac5

Aliases

arxiv: 0809.4495 · arxiv_version: 0809.4495v1 · doi: 10.48550/arxiv.0809.4495 · pith_short_12: ZR2VCGEWNG4Y · pith_short_16: ZR2VCGEWNG4YJBCS · pith_short_8: ZR2VCGEW

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/ZR2VCGEWNG4YJBCSJIHZL5MKIS \
  | 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: cc7551189669b98484524a0f95f58a448acc636b39830c0a76ea7e9bed2a0ac5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47ab1b2922b0603e8093bb378815aa2554d0de61d891eed2e5040156755865a9",
    "cross_cats_sorted": [
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2008-09-25T20:22:02Z",
    "title_canon_sha256": "c33ae428e04085a0b74a449354d7e5a277ec0ce1c7fd82f6c555fff20b14af94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.4495",
    "kind": "arxiv",
    "version": 1
  }
}