Margo Cilker (born ) is an American country musician. Biography Cilker was born in California and raised in the Santa Clara Valley, and later moved with her husband to a ranch in eastern Oregon, l
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 0x529aae44c2d0358cf8c59797afd8c617f5725c89eb21197806163c42a83fb1e8. 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/ecbd5de1-afbe-4039-9629-3232caf8221a.json and https://artists.proofprofile.net/proofs/artist/ecbd5de1-afbe-4039-9629-3232caf8221a.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 0xe9665eeb3bd30d49004631abc67c9a0d3ea047daff93b09740371575414f5ce5. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/QZ3AK2000098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f64ed5d85c5d9ae14ee2430d58df48540d2bc2352e32a28e0486b2ccc2c46. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZ3AK2000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c7234594c66e10d2e5acdcdc345645c564bbd9ec6b0ac42043d3febfb63bcb. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ3AK2000094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e2b13b20c118b6528cc2e6a118fdb769005d9f31d8d56bde8c4038f4bb317a9. 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/QZ3AK2000095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be234ff380d296dd79f7d26929313e5534e5280417503eb00c8913b8a1765fc. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:01:44Z), 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/QZ3AK2000096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf441abaff22d96c058b10b0080fbfa9e4cd513015a7c5618f36f6f9be5fc0dc9. 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/QZ3AK2000099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834f64ed5d85c5d9ae14ee2430d58df48540d2bc2352e32a28e0486b2ccc2c46. 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/QZ3AK2000100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e4dadbe367d891a5b1cfeaa155c21f70eb74d7dbc7c767790f16b1ec061897. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZ3AK2000101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21c4819de54c8868df6495fb79880ec9700a97c66bc2b6325adf386a5390d9fc. 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/QZ3AK2300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c15587c4310432f533a3cff97f226f3f050f31482447504ed4ede4f54dca52d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZ3AK2300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180b3f2f03116f7792af854b587126cf4a3fc338924f3050732a9f062b65e2e0. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZ3AK2300102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b19f416d2f3b788096c6a4baccc4259c96628a10ca5dc6ec951174d8b9b465. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:01:08Z), 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/QZ3AK2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f1b7ae8fbb60661f4fddfa2b6c51270446fbfa349f103adcb10eacd2431e68. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZ3AK2300103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ecea8a14995772da06098574b0936b3c89a7e501a7b69b65194642ee29bcb6. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/QZ3AK2300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c0a389a6cd30c30918917e0e42e545d305b231a54600c4cbec055c45799d9a. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZ3AK2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe8ff3d7f9def26b7864b8770ef574d6ef93e7ef83e8871b7573d7a588b5122. 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/QZ3AK2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7d14a7959bdb88630ec8a0b72f1f4de2865d3c5c0e5eba622aee1cd4fc34a0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:57:07Z), 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/QZ3AK2300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36036c0da173f250681eae3186fc1074353426e9ed81d67b11d38feabe58256a. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZ3AK2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff51d86ff7e15656ea760cfd02249214dab880da72fdcb50c0ac2b32ab45261. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:06:49Z), 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/QZ3AK2300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaacd808c4787d23332c7196116c35d54493fbec3335365b5999b6297ffa4ee6. 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/QM24S2401985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5a51af59fef172294917223143f4ce8709f6cb1bb120e04a5f6fbde661beff6. 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/QM24S2401984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda811675c8a76ee44b58c7ad266490853ece9703350f66015930a3babda7de3e. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM24S2401983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb86f0d184b38474c7ac35b2f50273c6d6170c462214d1c716b032218c43fe9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QM24S2401982.