thumb|J.M.K.E. in the passages under a bastion near the Kiek in de Kök in Tallinn. J.M.K.E. is an Estonian punk rock band, which formed in Tallinn on January 18, 1986. Biography The original singe
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 0x9f1b71c702ee8b4cd9289b32dbe472bd5d1b431f9396039e3539c2aca9921a73. 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/1b098f32-c1d5-4808-9199-feb3d1f54b7e.json and https://artists.proofprofile.net/proofs/artist/1b098f32-c1d5-4808-9199-feb3d1f54b7e.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 0x314fe6645405dab351c72608942c02c4f2f529655285f3dbe303305e33b7efe0. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T05:02:52Z), 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/FITTS9300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6b5653077d8b23aa53e9eb12133db0959d281a3565c411c930c20e000d098c. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/FITTS9300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9b823d1ea8c6aa003bfdf6c24ae441e86ab6345d71c91af46c5001d9c89dac. 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/FITTS9300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fdf1e94b471bbd00d7427104c84106df0409c41ff20e30ffe7cc309a8004f4. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/FITTS9300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f66c4f0cfe5ad27cc29e53fe315cb9b06bb9fadfa404bdcf8847f8097c5f09. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/FITTS9300033.
Sputniks in Pectopah (14 Evegreen Russian Melodies)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9615a0b98b253753066cabe1e8c2a6662da8da69fe791e54541ded16b4143e5. 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/FITTS2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533212912d9a971cabbb491a6b99adcdca17fd0946ec8a68f18cae6865b1b739. 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/FITTS2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee35ba434c831df9f9e5b6e1eb1b957193f53853f3e0ab922129685f60817bd. 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/FITTS2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a70f8943ea29c455c75bf2214244f59d2886ba841458d148cc36f6a4cfa3e69. 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/FITTS2300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd051d85eee6322e1ab9cebeaca213e36070646ddfcbb91459be57eb740583620. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FITTS2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9472490de9119c2850a4ab6282e1ff4d065c3cff01b0af3b013da9c0ad76b7. 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/FITTS0000081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d01decda3b0a3160707f7ed8e21a1bc3dc62e88b93cad758743f7ba128fa58c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FITTS0000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a3a2b8d888212b701a88fdb6ee7df7acb2f6e28a476e495a9d92d86026d62b. 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/FITTS0000087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b78e26aedc20bd7d64413b304885c4105b719476b59881f0d0e9b49249425c. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/FITTS0000088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb6f50f00b5c0556ebd5d680117c76e0e77fa9f578d3d0b8af992b6d5d0948a. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T12:32:15Z), 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/FITTS0000092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb640efed08b036b7a8626ac582a128abfa5a57c3c973533900ec79251597e860. 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/FITTS0000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac22a9ed564d406e0b263cba55e573529228dbbe9b6daa772c3e6e51a04b5550. 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/FITTS0200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6211015015d10cc3a8515991b779ab45a98899a5c2520708865c1150bfc3a6a1. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/FITTS0200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4dae95f87fbdaf468f10066eda6e03cc3cdd6db35f9e643ab088ce71ba07f2. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FITTS0200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721f0080459c5c8ac76f712d7c5b7d4179c34571421b6f9bc645283aa162e325. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FITTS0200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56ea10685eda37d0196b8aafd9e5a56e945d6b38d8148284f73a9320c3ba3f98. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/FITTS1100052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c33a9f9598077f94662147b6aa7dc603783c990a7815664e8bb74ca3db82652. 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/FITTS1100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b1b288a1e4476c98ec0f4c82ab5d3f81bd66f4ea4b666692af703da4f35d3e. 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/FITTS1100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d7817bd5eae33183ee7c7781cf7facfec50500b1b78a64cbd1e1d690f152ffe. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/FITTS1100055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b4cdf52eab8eea4af42a06d9b7f6003e51cd5cfc6b4c364df8126c4cd69448. 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/FITTS1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe750db16595ae29e345598e46f6d42e725da5b98e04ed8de37c22b0cc0079621. Chain 2 (Bitcoin): anchored in block 957634 (2026-07-12T00:26:43Z), 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/FITTS1100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fcaf817e91d6b0a034d93c0bcb8074c2bc8a11ca537639096b328a832a8268. 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/FITTS1100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65018bfa6dcffb47e517eba3b2e058af23ceb84502870e1c7d3b26d12591f0bb. 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/FITTS1100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e3df885dc0e9ae3c0733e94a2078a6a7e074e4c866681d8588f88b40902ab5. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/FITTS1100021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bcf6ca9225b5377e2fc605765574a6a7c2c815224fa4facff4614d6c31f5672. 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/FITTS1100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff5f2bd31d8368a5388e807c3227d1dccabb000f39ffecf807010ef8ea77c821. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/FITTS1100026.
Magamistoa aknast paistab keemiakombinaat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88fea16640722e58a259dcd60a8df20be734a035f5f6f78c1d446578d6df7a6. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/FITTS1100030.
Külmale maale (J.M.K.E. 30 Years Special Edition)