17 Hippies is a band from Berlin, Germany, playing largely on acoustic instruments, a radically democratic collective of professionals and amateurs. Their music is a confection of various folk influen
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 0xc738012b93e1213bac729b2e758203d497974aad286a9bf44acda27f5c34a8c5. 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/aa909d28-62c2-42c3-95ae-add4087914ef.json and https://artists.proofprofile.net/proofs/artist/aa909d28-62c2-42c3-95ae-add4087914ef.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 0x48701ab93b9f4667470397225c78c5aa48aafb7b64ee577dffdb9c68f499906f. 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/DEX609700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae76242fd6e0ae565283911b0748f1549c197a8a6acf7056a0a865111eb14e01. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T16:06:00Z), 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/DEX609900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70562bd2f13c7f748de8b8ecc451bd2d61cdb5cdd2c836a708954ef2c2249b72. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:00:34Z), 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/DEX600200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4ebb79ca9a6834a6cbcba9daad975dd0a9ad954bd57421c12705de37c93f15. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEX600200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae95d85f2fa1aad7037198fa18a9b658395ab7ad7aebdcb2ab9e77c3de932da4. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:47:18Z), 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/DEX600200016.
17 Hippies Play Guitar feat. Marc Ribot & Jakob Ilja
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e040262102771422c38226c1c6e186f81053ccb22d2dfa519e95e3b1c0b944. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/DEX600600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a3b7d600d27469076c2a0d5c07ac4ed9c0066672ad99499a3695851c3c8d0e. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:30:15Z), 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/DEX600600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e3e19056bfb67523d54787a2a687d902436c81cf541bbcc2dc320b335cddf4. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:36:43Z), 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/DEX600800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc76b3b6afd20630fe1bd3a2621ed130271e3c6ea19af28472d9829eec858c449. 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/DEX600800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04570132ee2e5f7ebc3b8d414804a27fe5cdc81a7eae45dd58adfeba32c087de. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:49:02Z), 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/DEX600800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf25ad6b5e8af19a44fa3039b7b74a49dcad6986bb2fef181dc734f56abfed0dd. 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/DEX600800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf28c94ab40fef6ada26559f2b0c148bc4ab5670018fbe94b60abadbc5c98ecd. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/DEX601100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ad67b6ca58687d62bfa11c0d6d76936106ed42344ee0c2ecf22f73aab29423. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/DEX601100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12289f33eb15b374bf964fc7ad45f9e4408b28eab3f3608bb10d4c63b96966f2. 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/DEX601400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2cd3e5d74b10f97367ba12c277d3731fe6dcba86ffc0c6759c78e0befb34fc. 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/DEX601400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa80c05aac4860054764da3c5428b59301ee427b2e424aca121b5c4a32f5fcf66. 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/DEX601500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23cad26a820932454f7ce6a0efc3c246ce8179621af9605ba8a988b7e2c6a53. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEX601500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc16a2ed2a462692220c60fddc862eba15929bd7dda85ba853608863097bec19. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DEX601500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a5afcce088db9cdf5b917c22374853e3a280b3325a6b5f1aba85cd1945bb54. 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/DEX601500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21bd5655e933cb993301f32fece40bed25873b1608e0308d2b3b49cc8f4b5383. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:42:32Z), 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/DEX601500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806ab75fa6fcc2ba275b4e25c78f382377060508e07c19f1e7eb5adb36030771. 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/DEX601500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x805656ccf025ac778768480c38b797a761465dc3748ecee805f33f3667819f45. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/DEX601500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1733fea7b0fc1e518911ae613ea24a7e158a89904456deed885ce3cd8b4ddd06. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEX601500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacdcd911274ac0ba7c4ec6cd7a201c010e80681334e667a41aa8e917eef5465. 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/DEX601500066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc802c66e7b16f22178cb3df79c4f91ef274f3284a444eba68f4ee3629df9099. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DEX601500067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c2cbc116548fd705f299a2faf693e51cb142efb64b468cc7eab43f944b22f77. 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/DEX601500068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27d280b4dec3aadcdf6ae11a85de0053763b5190d451ff8df79d70669fad8204. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEX601800091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb065be10403f2f6018cee200dd371ef62ab1e358847538d0e7c83d75db2af5de. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:24:33Z), 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/DEX601800096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98071808c5601823dba8316ff4f89e81f8cca3605bf9558f7742a63905999f57. 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/DEX602200063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3312596e85b8604b61154f54f351a129ec92afcf558b763a6910f57c7ff414ed. 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/DEX602200065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1caa3bc0c0af47be2bc78d3060aa83fd2a18085313d6a4a3919e8af1055bbb3. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DEX602200066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb089f82c246f56ffe5141f1ab1e6c6d05e73ad10d82a582253a97d5ed6d3b030. 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/DEX602200072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afbf3478e715ad90ff5f1781398bdf7e359ec6fc643e8a804ff693495459c63. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T08:50:41Z), 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/DEX602200073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8e01e5f8c01a7458504789d67b55af5ed7f90dd5b7cb4804b3a65d1ecd8234. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEX602400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27a08b698ba3da56d73c00bd0895ab604d93ea92007c484802fa2df0ee038ab. 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/DEX602400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2b5e927d80e65a01d97748d9c01817500f95e7ac4c7418c16e370b40defd65. 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/DEX602400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb41cee69cf944835417cee65107d597d5df9d628be7d1ea957e60e102cb3de. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:11Z), 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/DEX602400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3525f9d779ae054f9c369ac1f4a75241a0ee8b95e5a313e3ca36458ff741cd0c. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/DEX602400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc35d40f56a20ec4e8e14c192200816de298f72498ebe1f225d8357ef62dca9. 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/DEX602400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf947cb7be868e15f2f1041d19a5ed756dad9a289d1cc5b5b12faded3269254f8. 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/DEX602400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd87aa2f0dc35daadd4fe8a758d000f91eb45cff5228aa1458d57e5e78e455737. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEX602400027.