Julian Sas (born 29 May 1970) is a Dutch blues rock guitarist, singer and songwriter. He has released almost 20 studio albums since 1996, with the most recent being the double CD release, Electracoust
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 0xbdc1dc3c7381eeaf39b34ccc7bcb948d50b7568a8b074c1a8a39d27e4a73919c. 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/6d51d78a-63be-49f7-ae65-c39af7d16198.json and https://artists.proofprofile.net/proofs/artist/6d51d78a-63be-49f7-ae65-c39af7d16198.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 0x8be49cc0f82ebde351739d203682d14c051053c201a2e6d53ccffb5e75622e36. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/NLE320300033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe158dbe1b828af372e6aa9706ee917fb85010cf25544126c0ed56dff03424df6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLE322100014.
For the Lost and Found (EUROPEAN IMPORT)
Spirits On The Rise (European Import - Digipack plus booklet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ebf339ce7fd81e8efe250becbe03478da130c94650c2411063e4cc1c3a2097. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/NLE600000102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee31a4cd8b8e80a8227a4e4a94be2cc5a56a84ed243838c1597615b1e0bb6ce. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/NLE600000103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91daa12fb3da1e4a2295a6ad7d82841df8df936322c8c688f67410a0515a29bd. 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/NLE600000104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c007d00b849b3651d30c28e4073010e465d87a7b50e8aba78865f2338a6880a. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/NLE600000107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1332147c0ab04b344f7510d51f1fc596578fd6793d425aa5c5424fd71dd9dbe. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:46:36Z), 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/NLE600000113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06260c63bb9cac225397d030f81d36626a1d62511c9df645f674711ff383a13d. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/NLE600000910.
Twilight Skies Of Life (EUROPEAN IMPORT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1014c3dac150dae20a749d64c8f8619f689445fd4edd0ac70da514fbc21359b. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:05:29Z), 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/NLE600507307.
Wandering Between Worlds (2 Cd Set) European Import
Wandering Between Worlds: The Acoustic Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7bbf5315017edefa8bf09cef2221ecd3994db7d08bf1ca55744f7cb22bc5ab. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/NLSS91100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbe0aee9cf4d0d4d878fdfb1b9ee5a472f0530c6b67e634ef346ffd1d6d49eb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:09:17Z), 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/NLSS91100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0186e0ed952c48d169aa0bd8bfdb7f43eea175acfaee46ccf348d1626998403. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/NLSS91100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81e7fbcd8914300974486cecfac216649914abdb84e8941b8d103898ed9fa615. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/NLSS91100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbe0aee9cf4d0d4d878fdfb1b9ee5a472f0530c6b67e634ef346ffd1d6d49eb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/NLSS91100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc648f6b6a92a1ae677de0bfa40a5943fe746a26c4a764ea12f16fe2f0c184259. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/NLND51900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aa96437310bbf33866026389d1ddc01a600e8527ba334cd9349d2bc7a740ef. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLND51900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058049ba70e2e2703c840d95808e9ecc0e6d8a570b7844cc481e761cc2312b0c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/NLND51900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc648f6b6a92a1ae677de0bfa40a5943fe746a26c4a764ea12f16fe2f0c184259. 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/NLND51900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8aa96437310bbf33866026389d1ddc01a600e8527ba334cd9349d2bc7a740ef. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLND51900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x058049ba70e2e2703c840d95808e9ecc0e6d8a570b7844cc481e761cc2312b0c. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/NLND51900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc648f6b6a92a1ae677de0bfa40a5943fe746a26c4a764ea12f16fe2f0c184259. 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/NLND51900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b809ebdedfc5b82a09a9018fbbbf8094c5406ad16529dd50e534f527748487. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NLND52500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21813203b2f7773c306917c00ae4b275fd64856357de466595a536dae1f2346. 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/NLND52500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21813203b2f7773c306917c00ae4b275fd64856357de466595a536dae1f2346. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/NLND52500003.