Pith Number

pith:CCOSGK6E

pith:2003:CCOSGK6EXJ3BV2TZT3PAW3R3BK

not attested not anchored not stored refs pending

A heat transfer with a source: the complete set of invariant difference schemes

Roman Kozlov, Vladimir Dorodnitsyn

arxiv:math/0309139 v1 · 2003-09-08 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CCOSGK6EXJ3BV2TZT3PAW3R3BK}

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	2026-05-18T01:38:28.831074Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

109d232bc4ba761aea799ede0b6e3b0a8420ad4747a21721bd52e39e13e57e82

Aliases

arxiv: math/0309139 · arxiv_version: math/0309139v1 · doi: 10.48550/arxiv.math/0309139 · pith_short_12: CCOSGK6EXJ3B · pith_short_16: CCOSGK6EXJ3BV2TZ · pith_short_8: CCOSGK6E

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/CCOSGK6EXJ3BV2TZT3PAW3R3BK \
  | 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: 109d232bc4ba761aea799ede0b6e3b0a8420ad4747a21721bd52e39e13e57e82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "69d2d2b5044e4ede75bf5a6a3a6fd9d6755805825f1ea03ef700b10e2f156b71",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AP",
    "submitted_at": "2003-09-08T02:26:59Z",
    "title_canon_sha256": "8cdc518b24ca4730e4688d66c8b91198340f1cc3d84483267200bef1d8a31e52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0309139",
    "kind": "arxiv",
    "version": 1
  }
}