Pilz is a German occupational surname, which means a gatherer of mushrooms, derived from the German Pilz "mushroom".Dictionary of American Family Names. "Pilz Family History", Oxford University Press,
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a0c87dd5854be2dacf6b4c15b88a95529cb7443e755966d19cfcd14ffe9947. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2f344361-137e-44c2-8027-32bafc1d052b.json and https://artists.proofprofile.net/proofs/artist/2f344361-137e-44c2-8027-32bafc1d052b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e726836c51e7199d3ef052c7615ef93fd332737591ad2da0b846720e289baff. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMN91500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644283babbe691adff6c0f9865b0ef5ca46e182e8de9d4055c729889d8250528. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMN91500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712e083c3b90cecbad9f05289a789a6d84b9621ffeac01183cfb36743af422eb. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMN91600178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475eee919d599018ea8f5e6e3462207be1a70f3f8d97f8a049bbc3ec7cb832f4. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMN91700067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844ffa4cf3230a7d725bd839506ba3c567059e30d9ae1429ab37a6082054ef04. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMN91800172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ffa4029ef46b029a72494869412f166d2fdb21525dc24bd86ca10e2100466f. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMN91800173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0460dbb81ae63b6bf2144050a1a933c27a82571e0603dfaacc9d39d57ec6cf. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEMN91800178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb65cece5aeb52aa3d3caade5ddc0afbb31605062d03d07b4a9aacfc1630a73bd. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812215042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab0bbba43827ebf87d888a2f5dcd25cd5cdd5cb1a9816910526114f8aaebf806. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812191698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc1f406ce26b0297278e7fd86fccd5c5184ed5dabee25635eaef0592d628fe4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812106180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cb0d6d05af622faa7e5bd5c16c5aea2fc116cde52c713a51b2b9fdd07f1659. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812213968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa35e9fb4a3c8d292d2a4e59052d3a41b35d24157fbc9069c27e51b46e606218e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812068223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a86eda8da94b9fde36f9daf3e9e8121a38fc079e9de1bafa3c28862d4780079. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812071535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6899973f053a10484732e9fa1a2c6d5fa83ee7ed53e326c5122f327052fd7ac. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812215043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f60066716c87858c824485a232d4bba7ab873645e8ac6ef3c32dd4c3543c87d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812074021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e81255cc3eee069276ccb259d977ead1f01c514a73e3ba40bbfb0030cdc3b11. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812215044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750b0f257e79b27f4688a4c0142a0abf0b58eda6949f1d4d6403241208a8a544. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812176642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097d3e8cc6040d5dbbb04b5c60bc156bb2d6d2a4a0102296cc827a2fef905d87. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812215045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7bd03bb2336a0b7f8373908f3285423d9336bcb3f00d11ad6ca00da92017c33. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812409950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679008b921ce25bc007eacfea5c05f4a3ec30f8a511d539fe6cbb11190f4467c. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812411008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f17884340e58cd4c7b381db1e2857e63f6361b11fc169b84e08d1b6ef80349. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812411010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6488c25dcc2f9fe1b7645dc9595d4cc4d95f7c1d0e7eeaf26d8c20c924613150. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812411011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0168b1740c30c1dc5e774ac6ab2ae95221fa3c561ca000693e8bea084a5b4412. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812410917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d588650131659b8c5c00a6fafab485ad29cdd0a3caed11d5b2f619ee130eddb. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812411012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad89b72fbd53754e22ce96e90c755779c7db00ded098db71449a58a4d609005c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812410926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39654521a8d6d5e45466682906dc2dc38472ade544730a979b63b344bd4c592e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812411013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9f89e84ab0a24ab8fffb577765519f0232a3dbaa77b7fb90516ad1fd2e27334. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812411014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bc14b85df1bda70eb1ab835299faf257c52f04d77fab0597e74ae9b7b1665d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812411015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993b1b8a56c6eaf4088ad87cef096bf0e960b62e9d64aaa2e22f26fd13c47afd. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812535877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c820b8c20ace993f2616895fc61b912b052fa9236d7a90d68532012310b8fab. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812535878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9be349186b1d0973275df949b5486dabb90c5c07916e289ec7af52bad769a2b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812535879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe040d44808479ab875bdc84a7437c4f74929c307a8116dc1e888c1ae1af10b0e. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812535880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a6fcc49e0a77b0206cfdeeaca86bb6d6bd1c2e47c93505a182df2d96d2fa707. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7812535881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc03c07850c95f108bd23cb6861b15bdf4621ca1e984182497c74f848857be3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBT92200263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864883dfe01828e2120a4ae9ca67b7c03ea75bf29916f8e8bc2d0cb8b1215264. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22044062.