Messer may refer to: Messer (surname) Messer (sword), a class of single-edged sword Messer, Oklahoma, United States, an unincorporated community Messer Group, a gas supply company from Germany
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 0xd843ecf1edd0630582cfafbf53a4d466b435d8b5d632cb187167509fa2b5c56b. 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/e6520e11-c250-4ad5-8986-1f48e3c75f11.json and https://artists.proofprofile.net/proofs/artist/e6520e11-c250-4ad5-8986-1f48e3c75f11.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 0x3c6c16d894bbaefbdcd1ec7a00deae3409c7187785ee60d5c9ccc49832e59d1d. Chain 2 (Bitcoin): anchored in block 957895 (2026-07-13T18:41:29Z), 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/DEAK21600334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9050639452300254246186ea20f7a783ce06cc2987d9dfdc247b5f4bc98f3dd0. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/DEAK21600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f136f37f77a2767ba2a3ac3629fde740c4f7dee593a8a94396c69be61adf96. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/DEAK22400493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40faa4c869cd342c02f63c0c19d91c690d3d8619f78b280d7d21688390d6cb2f. 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/DEAK22400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e47feec39df3847f2f34fc11847c0218da381b85e7c968f8b4d03a00abea57. 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/DEAK22400499.
Taucher (Alexander von Hörsten in the Yellow Dubmarine)
Oswalth (1 2 3 4) [Samuel Savenberg Remix]
Umwege / Abkürzungen (A Remix Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378bbd527cf54219cc7457457244bf8cdd2399b246fdb2fe47343b15ea190c76. 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/DEAK22500513.
Die Unerhörten - A Rarities Compilation: B-Sides, Outtakes, Demos, Collaborations
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378bbd527cf54219cc7457457244bf8cdd2399b246fdb2fe47343b15ea190c76. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/DEAK22500513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a9f4b29d6244b86bb39284c16b62396e40d4781404739bb3781cee28b617b90. 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/DEAK22500514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9766135672fa2ff3ed771c942c15a5fa38110dc33823f3335b54f280f535e212. 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/DEAK22500515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x470c3c3b8523e68f1e28d91b9e3eb4f5f0a1cd8b3676def3dea856ee0659a9fe. 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/DEAK22500516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8dd8b6a27c4c18194fdc951f21726636177484b445c261d132d6267df9c5cc6. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/DEAK22500517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1779278b4d0e4fb92e9ed0948c1c6e58c61d0c5be4a5be8f0bc8887c10ca421e. 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/DEAK22500522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa74a14fbd08a0ec5e48ecfacbb60441553a8e83bf47e5f68024a4b7065e111ad. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/DEAK22500526.