Sloma is a surname. It is derived from Shlomo, the Hebrew name of Solomon. Sloma is a surname. It is derived from the Polish Slavonic word słoma. "The word słoma in the sense ‘dry cereal stalks’, rec
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x522d93e0a62ba2e97025ba6cec4082eae723d44da7d8433d3f27efade502192c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30521e1e-45fa-47b9-8ac8-0abe22195722.json and https://artists.proofprofile.net/proofs/artist/30521e1e-45fa-47b9-8ac8-0abe22195722.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3087bb99b202152efd0478b9eccbff2cb03b95c2754b3552c32aa09239e9d79. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZFZ62505425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238b09f0ff8866cdf9d9e4d82bcde5802a0b7277d554093fb6804c8207a835b4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZFZ62505427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90838f166b77889fcf5f10f60f9be1ec8b732719b7d0c5deca60be4972178075. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:50:51Z), 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/QZFZ62505429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc07a876aeac912b03648c86475237184b6c1c27c52634840272e1d9122ba24f6. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZFZ62505433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555e62b9213abe89d9eca854813f876dc59da9f135eb0576e7c2e270eefef5fb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZFZ62552010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4830768a8dbecab17e034b11de0070bce94b514d3652f226b9634ca3c84aa1c7. 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/QZFZ62552012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b218e8e7d5fb44a8a8120e1907a802fd18ca8f69405f47e418e469c1c6a3c2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:28:04Z), 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/QZK6L2527456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ab92e0e7442e0c9c88faf25f1607c782b9133c351c04cf198064a0ddc1e96b. 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/QZK6L2527457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe31e135cf53958a4880706a5246986e01c716e5b3f759517b6e7763bbcf75e. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/QZK6L2527458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dab3396c95c767c795c15837999a2ad352f24e8cbdf8fe718beb9506978fb9b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6L2528849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977b2d289f03da632bd98c01a974a73acfd7ce529d890aa73fbe9704d2d71e24. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZK6L2528850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52bf2e95d7b0ed736ed922f8ac123ed406605179db33a321ef1bd8bdb837593e. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:54:46Z), 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/QZK6L2533380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c2b6db021f91efe1338cdfeebc17cc1e182da9f97b66208e361965d99e96e9. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:37:21Z), 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/QZK6L2533382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353195fd6111210dfc1839b4a4afa4b14c46241fbe013647f4f368c9f9285ba7. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-17T04:52:03Z), 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/QZK6L2533383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda50a06909ac7e6d2f91ea8fff704319e79d25f257dc8c2505ecfc71829524d6. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:09:20Z), 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/QZK6K2515024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa2a2accd95be5dbcdb77d32a7e5ea3b3319f6fdf12a8cd7fe73dc413a2805f. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZK6K2515025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c6ce25056731ca31f11c18e390d4420c978515bdaad94078df1484b06895ed. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZK6K2515027.