Pith Number

pith:SYLS5Q7G

pith:2007:SYLS5Q7GNPYTXAKYBIGAISU2IG

not attested not anchored not stored refs pending

New entropy estimates for the Oldroyd-B model, and related models

Dan Hu, Tony Lelievre (CERMICS)

arxiv:math/0703198 v1 · 2007-03-07 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SYLS5Q7GNPYTXAKYBIGAISU2IG}

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	2026-06-03T22:06:22.239138Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

96172ec3e66bf13b81580a0c044a9a41957fd5b8616191acea790aeaf67fd7f5

Aliases

arxiv: math/0703198 · arxiv_version: math/0703198v1 · doi: 10.48550/arxiv.math/0703198 · pith_short_12: SYLS5Q7GNPYT · pith_short_16: SYLS5Q7GNPYTXAKY · pith_short_8: SYLS5Q7G

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/SYLS5Q7GNPYTXAKYBIGAISU2IG \
  | 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: 96172ec3e66bf13b81580a0c044a9a41957fd5b8616191acea790aeaf67fd7f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a9e85155025764061e87d4051847c54113a32c3c0f1ebc006a64a3277ccb56c",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "",
    "primary_cat": "math.NA",
    "submitted_at": "2007-03-07T15:33:07Z",
    "title_canon_sha256": "32605fdbe511f2634c3704ae4c28901d95becc8b1b8d14d2e2bd897bc528e88c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0703198",
    "kind": "arxiv",
    "version": 1
  }
}