Pith Number

pith:GY5REUMY

pith:2003:GY5REUMY6SGTGKQCOS2EISON6I

not attested not anchored not stored refs pending

Indian Physics: Outline of Early History

Subhash Kak

arxiv:physics/0310001 v1 · 2003-09-30 · physics.hist-ph · physics.ed-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{GY5REUMY6SGTGKQCOS2EISON6I}

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	2026-05-18T01:21:45.612467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

363b125198f48d332a0274b44449cdf21f56fbfcbafd687c080874a098e847ac

Aliases

arxiv: physics/0310001 · arxiv_version: physics/0310001v1 · doi: 10.48550/arxiv.physics/0310001 · pith_short_12: GY5REUMY6SGT · pith_short_16: GY5REUMY6SGTGKQC · pith_short_8: GY5REUMY

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/GY5REUMY6SGTGKQCOS2EISON6I \
  | 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: 363b125198f48d332a0274b44449cdf21f56fbfcbafd687c080874a098e847ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3ce63b2c2ee8a0a3e7db17e54468ee80d0df49a433e66c0e3c638ea7b28ea24",
    "cross_cats_sorted": [
      "physics.ed-ph"
    ],
    "license": "",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2003-09-30T22:02:56Z",
    "title_canon_sha256": "801c26a6b949abef63c055fdbe75a4641d13074e020833ab872a968bda14d240"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0310001",
    "kind": "arxiv",
    "version": 1
  }
}