Pith Number

pith:O77XVQYS

pith:1995:O77XVQYSSESOVXBQHSOI27BAIQ

not attested not anchored not stored refs pending

ASCA PV observations of the Seyfert 1 galaxy MCG-6-30-15 : rapid variability of the warm absorber

A.C. Fabian, C.S. Reynolds, H. Inoue, H. Kunieda, K. Iwasawa, K. Nandra

arxiv:astro-ph/9506086 v1 · 1995-06-14 · astro-ph

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

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	2026-05-18T01:40:23.188341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77ff7ac3129124eadc303c9c8d7c204407810d5a5a24bf97262708dfd0063e63

Aliases

arxiv: astro-ph/9506086 · arxiv_version: astro-ph/9506086v1 · doi: 10.48550/arxiv.astro-ph/9506086 · pith_short_12: O77XVQYSSESO · pith_short_16: O77XVQYSSESOVXBQ · pith_short_8: O77XVQYS

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/O77XVQYSSESOVXBQHSOI27BAIQ \
  | 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: 77ff7ac3129124eadc303c9c8d7c204407810d5a5a24bf97262708dfd0063e63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "654fbf9bfcabfb4008f465a6b458ada1d41661aa52016dfe51a64eb4cd25be49",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-06-14T12:09:25Z",
    "title_canon_sha256": "3865d898590f154016c4744aba839b011364a512399ee15ead2d7fbe83b78e75"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9506086",
    "kind": "arxiv",
    "version": 1
  }
}