Drossel may refer to: Heinz Drossel (1916–2008), German World War II anti-Nazi lieutenant who protected Jews and released Russian prisoners of war Leo Drossel, German World War II captain awarded t
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 0xea4e20e7f8d6d788f4155b401d1bc5feb07404b474b6f74f0a8cbf1d984828e3. 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/d95c0683-ad6f-4098-bf89-4cdbdeb16c30.json and https://artists.proofprofile.net/proofs/artist/d95c0683-ad6f-4098-bf89-4cdbdeb16c30.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mariolka (Pokaż mi maleńka) [Radio Edit]
Hej, hello zrobimy dziś show (Radio Edit)
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 0xe509928a481693b046350c1862f2326164df445fb145b84bbb5b58ce4016b24f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/PLG361200924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda84e815731f651ced302467b57f189d2df10060b421f38b42da7deb181fdf08. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLG361200760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2582754e02816bbd1b70378048706f82877df923e888072565e171616668d3b8. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/PLG361200764.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee08b61328ed3a0d0a1e87ca7f9c17221c3e887ba0d95d605b7d2b8441ed1086. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/PLG361200768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb71a5c5fd4a63763c6c0909f5d3de38cfea68f54e74172f9f6654885618aae2. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/PLG361200771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3691ab97a975b09c2b89efa63ced08b509f15c6a0d26207f762e8ff4a65976. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/PLG361302292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fadaeec44b9d4076b99b074809df68b076705a20c30e355401d9c75158dae45. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/PLG361302295.
Hej dziewczyno czy Ty wiesz (Radio Edit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6557a6dfbeb8a357f3a85592bc4b567e2858e1b66b4614cea63cba7aa6f6c2. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/PLI362064620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2764634e912839ade7773615a7c0f40dd87569e4f014ed2fb4d23d4df070435d. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/PLI362065400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa77ae2da0c5f71e6e779b4e26d9ecfdece015a0c0015e707f2e4955b5dfa64. 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/PLR862000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647a5eb340521130f7ff879a296097ff94b82565811aa579a0345e03abe71631. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/PLR862300517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x640aab8fae5e3060e3d739ccfb32f4945cec6529b80ea9e0a9b2a47b8b084974. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PLR862300519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd16e91aada3a12e0d28b80384e954fa2fd2ba491c5e299a7a7c920da41395d. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/PLR862300536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f97d7204ba6c2e690b40d317547592a0ddc6a9485622a4f5954cabab5d9ae2. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PLR862300515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4056947f815a5ad62025b407cbfc9d7ec0bd402b06037fc56546838676a5da4b. 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/PLR862500481.
JESTEŚ WIELKIM SPEŁNIENIEM, WSZYSTKIE NOCE
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb84095e849a724bca8e8ee03bf939603a21684db2f731ae66de85c2ff4fd44. 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/PLR862500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x177c18b28e8a5762407619dab7f4e7e5467cc74a114810c05cd185042eea5d82. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/PLR862500486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3754061e9a2c444587ac79f12cabc12e626efd0d469fb1bfcade6a4fe217f9ad. 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/PLR862500716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd33ee469320902aa8ef3304bc7c033f8e9081992ec82baa8852a25b77bcfbc. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/PLR862500717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8687297ce92b6db554108c4476686b6bd2b15241965665bd1b037ea31ada9076. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USJSJ1014065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe00f42b3cb027dd805a31fc0f5aad3e3cf5cfb504bd30de8c412d0235388ca0e. 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/USJSJ1014089.