Nikolai von Michalewsky (a.k.a. Mark Brandis) (January 17, 1931 – December 27, 2000) was a German writer and journalist best known for a series of science fiction novels published between 1970 and 198
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 0x21a0c1b7d1c797047bfba90871460daece6efb5825f097200d3eec2c07db535a. 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/ded6ddc5-f220-42a1-bd14-7c5938c7db0c.json and https://artists.proofprofile.net/proofs/artist/ded6ddc5-f220-42a1-bd14-7c5938c7db0c.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 0x80bd9c70e4cc2a0109aff5861c4f9b266955b31ea19ac2668e42e075f81f3d06. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/DEUM71703738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6c3e2e06a474cc0ab2805c1bb574bfda543950e8ba69526da016e7ef62df99. 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/DEUM72103065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d7fda95b2f8a6ebc7ab9b58071e8b50824553b6bd3ee103ccd78a083d6880e. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-19T21:40:06Z), 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/DEUM72103066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbbfd0e663996db1cd853f4759434c8ddd02842648b8432c15e9beaf9896f4a. 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/DEUM72103067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8e5183789073f24c6c8efaeb50a043f2882a6ea328ef597b37c2f9bf2f80a1. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/DEUM72103068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e72363c299dbb4971bf5a986f900014deabe66978af7045dceb7bf44574296. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEUM72103069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623a6f6a2f6d111d2fd7b721a56dbfc1e53be9ce47396ebc5568e0184e9a1bee. 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/DEUM72103070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e977b1a5bcdb97cb074addce1f6de9d9c1ced99b9407d72682d7ee596ac92e. 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/DEUM72103071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10aa26a8b4423c9393d8a1ef227727f392675ee4a1e73defdab7c93c4c1b25d0. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/DEUM72103072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10982240a85875c8177f16b7658a0945b35d626b68f1c9484177da4ea4a357dd. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEUM72103073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a61f4a31f0480f9a93df483be3c008a1fdac4e810442a761595eec92800bdb3. 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/DEUM72103074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbd552e70b6037c0975c8b398c65a25132aa604f24244b5eba2133afc85f234b. 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/DEUM72103075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbbe8624cef6e42bb3e57f2cb6e36d218f427f74335b604bd777c18f4cfd1c8. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DEUM72103076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26f0835359d8337f03f9652dcd193816733b71b401aa9c6e06d39414b741e7d8. 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/DEUM72103077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62d96c710370d6c49920021dca06d44b81f1985bc2cabe6270605396a57a534. 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/DEUM72103078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43518a6930a986ddad49ebd5dc66a571c052307321b0e8b0f855ed3f00429e0e. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/DEUM72103079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e729e2bb2f112b52de17c0435e1e7e4d5b28c051f7970d22d828ffc9ec2fcc. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEUM72103085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3b180cc1cad1bd125e66cdb1ba803f55164734f71ffbc8332de5c802a1716a2. 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/DEUM72103087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6edd85841088e1576a4cbc7c78359fc5dee70f5d233bb48038a5169fad69ec6. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DEUM72103088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011257e252b018c61adf897498100ff5d1a0f020230143cc3d93e76d971fee16. 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/DEUM72103089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae8d1d9cfb1ee834cf17919ce28786e63c56bb949c03f73df8f1053d86e0db7. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/DEUM72103090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44de2532bb5c445ab7b660e3ac66eb8a8d53956efbea68f83b3f84b1496c7531. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEUM72103092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac441a5ab71ba094cbb19185cf07da442635da63ffbaf77a54d88eb3cf3c6ad. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), 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/DEUM72103103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f97007e33db0fde3c2c1be944bf1a0cffb35b43e3d35d248aede0b75a4383b. 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/DEUM72103107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631232e8c4254585bdc2dc7007384d4cb85d4dacdd1a38b09f8bc158006d3eaa. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEUM72103108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f01bf5add5a58e9f2d5ac9e9fd1a1c57dc95e68f2e3459a8fcf038d6285de67. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/DEUM72103109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5998a3374c10b0ab4b345681e3d626985538ede0da655ed267c82fb5d99dd21c. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/DEUM72103112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f50c80742a755b93192c5bb8ef28522e11641af706eb0fadfe499ea29df194a. 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/DEUM72103115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152e553c1b1f9bfd0658f741a8975d1e5f1ae187521dcd6aad86e9ec4b3b70f7. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/DEUM72103116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a8fd750118de7780420a53c36cf869fae8799dbdeb2c7f88148b76c10300e6. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/DEUM72103118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e0916dc47b1229b2ec9e524ec444a3cff374efc8d5451922791133e4fdeb7d. 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/DEUM72103127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64eb7604b010dd490b49375e0cb57bce271f330763f5632c5cd7dd13a428e5c7. 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/DEUM72103129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff1a29616abcae514df9c68e042ffefd615fe0598e584575b2d3b9065a67abc. 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/DEUM72103131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca040947df962edf8745d7fe447bc4d2daf178ae24504171d9f49ed4a1082f3. 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/DEUM72103132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31c77aede50c1ae1f698183295cd28ebc4f8710662a848bfbb78b39a91a00b2. 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/DEUM72103133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd533679fd25e320dbf51c7eb9dfa2e56718eb1468164fb9ca414b03b42bc0ac. 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/DEUM72103134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d425889ffae43c05ef7d5603753ec0f5a078ec0e852e82d141e759d61a2f2c. 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/DEUM72103167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035d25a6aa19e9ce817cb48fb2bc08327cec6320fa709839e22d011f94530a25. 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/DEUM72103214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63e033555c47c7c667c69ace851fe7330ad1e42f62d7c97745cbc4e59fb540f. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/DEUM72103215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bed3a4fffd9b54428864bfe28074fdb551f1aafba9296224025b746ad4c9c6. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/DEUM72103278.