Hans Martin or Hans-Martin may refer to: People with the personal name Hans Martin (cyclist), Swiss cyclist Hans Martin (singer), Swedish-Finnish singer People with the given name Hans Martin Gulbra
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 0x14c585993736bc988c71cbbe0221e2a86000b682bfa5fc74a1749cd3a559abe7. 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/99000f51-d043-4666-97f9-6a639b6fb07c.json and https://artists.proofprofile.net/proofs/artist/99000f51-d043-4666-97f9-6a639b6fb07c.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 0x5769a18499d149c12ef6c0fa8f7748a3a9e6172e51a82ba72eb41f42050f77c0. 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/SEAOF0204020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c581299be899919e5715674b7119e6fa98a98d5742efd62d4213ab4c672c530. 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/SEAOF0204030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a9eb8f71901b9fa3f35c3b15a225ad8233f99078f016b319927bbcd60beb0a. 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/SEAOF0204050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282a714db0fbd39b231f5ece7c92305917fcaed7bd81aa318881ed70d61b79bf. 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/SEAOF0204060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b9b4b236565de87950e29370d15c5fd19e32c324e1d1a5027ff8ecffd3544bb. 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/SEAOF0204070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda7bb54e16cd7dde2890a12bddf0202834bc42aef515ea22e7450039c6410f19. 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/SEAOF0204090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec18215e998af1f665118fba7747abd0235d91e18288ad3a585d3be8bca1da8. 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/SEAOF0204100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858b536cbc27bc6aa45d39fdfd1e20478265a01aaa33f34c11730a291d16c2e4. 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/SEAOF0204110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9853780fe82e119e05b02712d27a102c92ab8db028547b2062c4ef36e50e7bed. 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/SEAOF0204130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5372e69b6bbe81f0733a3f283a4494721bd844b048b90cef9231275aac911fa. 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/SEAOF0204150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a4da90bef568148e4170157895d3927f523a5381623acc354f825b0cde059a. 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/SEAOF0403120.
Hallå, Mary Lou (Hello Mary Lou, Goodbye Heart)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7743357a3f8599e543c08c2f0e23f91cd85d314f7ebabb734bfb337470aeb5. 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/SEAOF0503070.
Där Rosor Aldrig Dör - 20 Andliga Favoriter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abcc95303e72521d0d8ae1d9d985b472a5cc45ae9b33190a846de98e916c6a6. 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/SEAOF0403030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71ad949a78e3af105f896bfa9bce4b4d8a14462381317ba2e7ba409d04c0645b. 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/SEAOF0403060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7378064b902f4dcdc0fe6e72e6994b14ad551154a9f1e3541a3be12d15b1dfd. 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/SEAOF0403040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9d942567bbe508fa9c4b3a11e82faa4998a3777a8ec1b60d1090d9a789c44a. 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/SEAOF0403110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22df68995f82245202836efd0b5ef1e24980fe0d75c15e92d0a941c8df67303f. 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/SEAOF0403080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24719e8547c58f3a57686b351542148415a0c58ee346bec281d74aa261c9bfd6. 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/SEAOF0403130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f1927bcdd68f5d6ce0844143df50738511c61dc2e6b9911ae68ffaaa01381cb. 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/SEAOF0403050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0579b8800f3f556968b2f0accf183efa0c1ffa802b98dd48af1e42b9e8533a1. 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/SEAOF0403020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9142d980a73221ebd78315057b27806bc6754eafb87bf7dbd2912ca514b9102b. 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/SEAOF0403010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1c9fa35e8c1e92f97cb530e6e8bee439015f3673f68929382072150d96f683. 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/SEBCA0900802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5e52bd4c12c9d2688eb89e1718005278d96ff493109d47bf36a32a45024b34. 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/SEVSZ1201502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabfeff1a9b92e087bc14c483dc4209fb0b86c71ecee9d02fc740f8b66abd378. 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/SEVSZ1302202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa46ca15e378381e52c8517398077da09855d8fe06745e562168713c53f07799a. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T13:04:09Z), 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/SEVSZ1302203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598c3880b2ae22199ac52f728f999dd3ff29914cca75d76f778bdb945d2464f0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/SEVSZ1302204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7149d273402a3460c06b0401b5d6e58daebce3b28612e2d4fe22a8b17b06058. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SEVSZ1302205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10944ced3d1dc87c17e41577c2b17ac563c55d1fb4045a0466db540c93b23abf. 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/SEVSZ1302211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3240226cac90dc552c6fc62eecf3d34178e1f41b25c8feb6d1e319ee075585a. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SEVSZ2004301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdff68b1d747aa4da1217be7b81bd1b024838f0f662730000c4348168834cd51e. 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/SEPQM0800250.