Pith Number

pith:O7OTNFVL

pith:2009:O7OTNFVLW72IZSDZ6UBZFY55CH

not attested not anchored not stored refs pending

Polarisation measurements of five pulsars with interpulses

M.J. Keith, M. Kramer, P. Weltevrede, S. Johnston

arxiv:0910.4778 v1 · 2009-10-25 · astro-ph.SR · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7OTNFVLW72IZSDZ6UBZFY55CH}

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	2026-05-18T02:11:11.619675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77dd3696abb7f48cc879f50392e3bd11f2a8b20235cbf9478c3cb90986709b6f

Aliases

arxiv: 0910.4778 · arxiv_version: 0910.4778v1 · doi: 10.48550/arxiv.0910.4778 · pith_short_12: O7OTNFVLW72I · pith_short_16: O7OTNFVLW72IZSDZ · pith_short_8: O7OTNFVL

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/O7OTNFVLW72IZSDZ6UBZFY55CH \
  | 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: 77dd3696abb7f48cc879f50392e3bd11f2a8b20235cbf9478c3cb90986709b6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b7f1726214811349f839bfd3524ba7ecf45e47ab20b5c4c6b02c8cc1ae99b6b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-10-25T22:54:58Z",
    "title_canon_sha256": "aa2177c1a391506117c842818c9cfe011643a27f12cd7b6b7ccd40db25ef1268"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4778",
    "kind": "arxiv",
    "version": 1
  }
}