Pith Number

pith:W2H5MHKZ

pith:2007:W2H5MHKZ32WA5S5K7OVASFMZ32

not attested not anchored not stored refs pending

Wide Field Hard X-ray Survey Telescope: ProtoEXIST1

A. Copete, A. Garson III, B. Allen, B. Said, F. A. Harrison, H. Krawczynski, J. A. Burnham, J. Collins, J. E. Grindlay, J. Hong, J. Howell, M. Burke, N. Chammas, N. Gehrels, R. G. Baker, S. D. Barthelmy, S. Labov, S. Sheikh, T. Gauron, W. R. Cook

arxiv:0709.2719 v1 · 2007-09-17 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W2H5MHKZ32WA5S5K7OVASFMZ32}

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	2026-07-04T17:05:45.010487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b68fd61d59deac0ecbaafbaa091599de9d56802866fd006f48d4d2c61815933f

Aliases

arxiv: 0709.2719 · arxiv_version: 0709.2719v1 · doi: 10.48550/arxiv.0709.2719 · pith_short_12: W2H5MHKZ32WA · pith_short_16: W2H5MHKZ32WA5S5K · pith_short_8: W2H5MHKZ

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/W2H5MHKZ32WA5S5K7OVASFMZ32 \
  | 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: b68fd61d59deac0ecbaafbaa091599de9d56802866fd006f48d4d2c61815933f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f0c36b6e8a79778ff4e4813e8f3a60b3a4bc3c5d642449acfd636aa57f4f307",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-17T20:37:07Z",
    "title_canon_sha256": "3de07840432de0577f25f41088f7c1cd9d594bf71748d35f9d9a738baa7c673c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2719",
    "kind": "arxiv",
    "version": 1
  }
}