Hollen is a village and a former municipality in the district of Cuxhaven, in Lower Saxony, Germany. Since 1 November 2011, it is part of the municipality Beverstedt. Hollen belonged to the Prince-Ar
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6277c8a6d3036d71358aab9accd5347df9f0dcb0fdcf4b59e5a65d583fd434e. 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/f869e7bd-263b-4dff-818a-b3e8a0c38124.json and https://artists.proofprofile.net/proofs/artist/f869e7bd-263b-4dff-818a-b3e8a0c38124.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac49b584f15410d86d02cbb6e612daf59ec91dd1e2824fb127fc68310c36136d. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES84B1310044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b0bdc4e57f6ce6c9134c3c8c0ba0993b45bd9d2cb727f3c25e4b21ccf8b044. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:07:45Z), 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/CA5KR1501522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0721632c495e055e1a7ad3a967b56fafa16aba57bfd15fd69ec0796fe4b8fc. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:02:52Z), 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/ITA061301040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01cbe4bdd9cde9129ff22a6c4a39bff9fe63de1820dd37997fddd4d596d6df98. 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/NLCK41043307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908d0fc73ff700ca817ab61e205cfa5c15a4551682dd5a29b4d1873ddffef067. 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/CA5KR1806923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e83f6434910e80e80144596212dca5ee41f7417c657dae9b1f3325f42780abc. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DEBG52200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08986ffc049d89f68e77ce259181c88ba1887901791cf81654f42847d3fb3e6c. 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/DEBG52200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e924251938c577455b0647cd26f1103adb3f3eda9062bd773b1390bdd5326b7. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/ITN3C2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538227366faa94fb29a0ec1b35fc802031a8e8670cdef76a367307090b8e7669. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/DEY472570729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3177f8a8813099c2f24cbf47da8e15643c0e62013b8badac84b8a8c606b4fa27. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DEY472570730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc62bbf10606e3f994129eecceb19c235d405f458e2ca69a91b94aca944242dc. 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/QZMHL2547241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b8943f72120f9210f14a0a44795f61137e4691e1f1c946f3c25e832e9575d7. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QM8DG2524339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e112442d0c4e1e460234fa3f8a79e4b09410e805bf524e62173ca34efbdcd3. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:01:59Z), 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/QM8DG2467961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff06e2d2ac10aa6f6a6dfa4ed4a7db539df14f396d65c0403758e0a52a723b8f. 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/QM8DG2467960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a1fe460efe1666a2f80ef16b697da06e1eb132fc7cb3e16ab83f77aad598abb. 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/QZFP52351997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac1fabac9032d008aa7d9c7e7251fd25401cb61c206867471167113afafe928. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFP52352000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25a2106481fc9e81e2e38a95653d1bd2dd46eb05b28304e2c8d58b6a38a4f8ac. Chain 2 (Bitcoin): anchored in block 959146 (2026-07-22T17:25:38Z), 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/QZMHP2548619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8abf607a6ba2ade7fbd5ea2dc02b33fd6416b34996a55fd2b859d8e155c7c7. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/UKR6V2580527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48e95b164cef1d3561f2b25572c13ee8ab63adfad1d16ac6d11935e74bbc2522. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKR6V2580528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce7e03b58ae19dff36b0411ea5fec6ad21835f4528c7dd8cd3ebeb2281e62c2. 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/DEBE72500388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9de8342515226e5f22f2c68c32100ef91f3fb7a17cc433e1a609a24b598a9f. 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/UKR6V2581582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb01a887a7bb9dbcbe6dd2d1d8a31be91aac45bcf97f2a31b0cc05a638d060a0e. 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/UKR6V2581583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e323519bd10c4dad22e65fa691813ba8472b367091a2be6f40fcd4de9b0a17. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE5MG2541902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13764bc41ee90ed50c0c20d51dc09d6ce6036e013d1c92ef92c74e513567f799. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/SE5MG2541903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37796e63209d4a0d56981c558655abaa81a990b3d99865f85c9e15e5d71f9078. 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/SE5MG2541904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9852f77b4ef7dbbdd9799963fea3794d2b6d9b0851389a41eb34cf91e36a94. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/QZJRB2564039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c2ecdea6215ef79546b45795514b67988c64dda106366d82d4074c1849dbff. 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/UKR6V2582192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6be374c7b19b377fb6bc1eb5e47805d3b45a78722a64da884357a7a630fdbdb0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/UKR6V2582193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72405de50c87407f5298be5e20f621d936a485ea63315ada8429660f70774c2c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:37:59Z), 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/UKR6V2582194.