Gemen was an immediate, sovereign lordship of the Holy Roman Empire, in the Lower Rhine region. Since Gemen had a vote in the Imperial Diet it was also an Imperial Estate. It was centered on Gemen, a
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 0xb6411cb9aed7bcd2952539a08bc2d2018b52d50abcd98870afe1470cd5a6bfec. 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/f91d9587-0020-4f3c-a0e9-078f5d6bd517.json and https://artists.proofprofile.net/proofs/artist/f91d9587-0020-4f3c-a0e9-078f5d6bd517.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 0xf313000328dffb7b07e3fec461c58d3ac5e9619b04402d226dac8bfe7ddb36e1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZNWQ2233021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27c57c8ba4b004899230c4f09419b34b4f53437e1d0695171dcba5e0717fb3e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZK6L2257109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ce6ddd956822b457ff9c7c861a1044ba1a4bbd1964c3c3881a144d1825eb26. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZFZ22391270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c6c76d849ebc19ab5143c237a3c9c8d9ec98b52845b577753bc53ecb4938a3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR9W12325680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6c6c76d849ebc19ab5143c237a3c9c8d9ec98b52845b577753bc53ecb4938a3. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR9W12325680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14cdb8552b4c1b37df06fc8a3eff1a50cf155ac9acd400276335af4578d336db. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZES82458678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba100b5b279796ed34cfe9ade703c6089a1f7dd9ca3afaf5fdb1b9bc2b28a05. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWFG2352437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ce175fbbd1cf8cf49e51ad4f252ee16c2683cb9c4eccf51f93990b0e0e3e4a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:19:15Z), 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/QZWFG2352439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda5b513edb700ae26788a9c6fecfcb0b10510165bfb5f5eddb6ccf4bebad4fe. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZWFG2352440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71307bfca986e79ceee8bdfc958272d56b142604649926830ed8761b18a22783. 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/QZHN72367920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3520f6172ef08c8b9efc0fb171a1c360864ce9f0d3222aa3a4872c10c2130879. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR9NG2300076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d59bf86d150e4ffe358ad4eb803b90068cd9164690e04e1a410e9b750aa6f8. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FRX872344018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d59bf86d150e4ffe358ad4eb803b90068cd9164690e04e1a410e9b750aa6f8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX872344018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64f8614ae995e057790d02cca27bbaf54d86bac615a153018a67be5b0ad3638. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6L2317733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29787ffe1f2b2c5d125a1af5376fbf0dd12bcc071c4eb84f041910c41fec63e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZK6L2317734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01a1b245e603b4f43eb124126c695f19d67dd4b46a871e01e2d198be07e1e175. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZK6L2317735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f892eb1dbc429bcc98c10c317d9dcd8e2fd1653029b5e63d5a26f1f2c39671. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZK6L2317737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ace75c39fb7d21c9944ac0a4a42627e766f1f284075b5682644cb0d74396d2. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/QZWFG2352438.
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 0xf8d462189e199ea745b6971f1090e36381f80e6d1487bfcfa6918e1e34015f6b. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/QZK6L2317736.