Pith Number

pith:UOEOP4V2

pith:2017:UOEOP4V2P6FGMWRE2IEVYWM3LC

not attested not anchored not stored refs pending

Positron Annihilation in the Milky Way and beyond

Thomas Siegert

arxiv:1707.06871 v1 · 2017-07-21 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UOEOP4V2P6FGMWRE2IEVYWM3LC}

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	2026-05-18T00:39:51.298163Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a388e7f2ba7f8a665a24d2095c599b589a26151774e37a9f9776934bb915cbe1

Aliases

arxiv: 1707.06871 · arxiv_version: 1707.06871v1 · doi: 10.48550/arxiv.1707.06871 · pith_short_12: UOEOP4V2P6FG · pith_short_16: UOEOP4V2P6FGMWRE · pith_short_8: UOEOP4V2

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/UOEOP4V2P6FGMWRE2IEVYWM3LC \
  | 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: a388e7f2ba7f8a665a24d2095c599b589a26151774e37a9f9776934bb915cbe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8562f1c3c708efde1b46e6ee3533d346f2c1c428bb91a540494956c2cce9b9fe",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-07-21T12:41:14Z",
    "title_canon_sha256": "b84e7a393a80c1858f4e2cf22a99b2db76da0d5db2f8b5e858a02bef5f0f62b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.06871",
    "kind": "arxiv",
    "version": 1
  }
}