Pith Number

pith:SP64WBO6

pith:2015:SP64WBO6UVQUYANOKU5DI7YF7J

not attested not anchored not stored refs pending

First order systems of odes with nonlinear nonlocal boundary conditions

Bogdan Przeradzki, Igor Kossowski

arxiv:1505.04012 v1 · 2015-05-15 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SP64WBO6UVQUYANOKU5DI7YF7J}

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	2026-05-18T02:09:40.404782Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93fdcb05dea5614c01ae553a347f05fa65c694bb7d83782027ba7a88530dc483

Aliases

arxiv: 1505.04012 · arxiv_version: 1505.04012v1 · doi: 10.48550/arxiv.1505.04012 · pith_short_12: SP64WBO6UVQU · pith_short_16: SP64WBO6UVQUYANO · pith_short_8: SP64WBO6

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/SP64WBO6UVQUYANOKU5DI7YF7J \
  | 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: 93fdcb05dea5614c01ae553a347f05fa65c694bb7d83782027ba7a88530dc483

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d50489301b15ea64f0c11576888136c7911e7443bc7931612d448ccd7262e2fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2015-05-15T10:22:14Z",
    "title_canon_sha256": "7b6f6772f3824da1dd0086addbd0e97c77c73cd1ff97e4fd967e726ab93fd8cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04012",
    "kind": "arxiv",
    "version": 1
  }
}