Katherine Bloom is an American folk songwriter based in Litchfield, Connecticut. Biography The daughter of oboist Robert Bloom, Bloom grew up in New Haven, Connecticut, where she studied the cello as
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 0x24ddb93572973e313d56bba5fa33069a617442a092221f2c59e33e56913d472b. 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/7bd3da71-feae-42fb-b73b-cc676b6157c5.json and https://artists.proofprofile.net/proofs/artist/7bd3da71-feae-42fb-b73b-cc676b6157c5.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 0x4f41869752938712b42103b9bd3ba8520a1583bc6cb78b7d5d9e5af936f5fc7a. 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/AUCI10906501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7c53d040ee51c8062b4985840fbaf180ad900c1d06763da823c4e3e92b4438. 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/AUCI10906508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb725dd3c12fe69c916a4ec37a4e5bf383500a2353e8f923b6db3616033f563. 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/AUCI10906510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b16d9c3cd2d47021d233309e1f172614cdc7be1c38656658287923128ae49c. 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/AUCI10906516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb791ddc30eacf0e35394c647acf666780f015ec754181d240a029f18048e92a2. 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/AUCI10906525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46101749e769f1a6fd5bc1cb29d89127f2c70a86066e5f052642336d3ff00fa2. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/AUCI10605117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3482ca40ef8d40088682541431eb2a47fc77bfbf4a25302f3fda3a3af86a92f9. 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/AUCI10605104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2a1bffc7000588bd427fa252b001353b06a0a0792a128f785eb3a661cfc12d. 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/AUCI10605105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e1cc32dcc870425de5422e7c3eb6658c3eeefe02a95926b58327b5256c073a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/AUCI10605106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc01e96d709c152e804f4a01de42583154bb3e9a6e0e0c56b34b20a2bf3673f04. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUCI10605107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68ba825f7e4a3062087673db071d0925a15a9dedb83cfe14983f28d3b8fa28c4. 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/AUCI10605108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c489e9e36d14ec7f2c97abd3c7a47a9f285d479c17017ef1b7d7ab9e7d624a7. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/AUCI10605109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56599ab38d1170a2a058ec67993be8c2f6d98b36710863cb0e2c25cb1a8d1241. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/AUCI10605114.
Sing the Children Over & Sand In My Shoe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292b3b4632292b26032ba101bc0e894bf2b1c2dce91cc0fd7605ce803916f4f0. Chain 2 (Bitcoin): anchored in block 959355 (2026-07-24T03:24:16Z), 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/AUCI10806302.
Loving Takes This Course - a Tribute to the Songs of Kath Bloom
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac0bc0c623c78fdcf4d745fc29262771648c38662657d418063e148e1ece87b7. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/AUCI10605101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x292b3b4632292b26032ba101bc0e894bf2b1c2dce91cc0fd7605ce803916f4f0. 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/AUCI10806302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe46d822576d810b02be3cb2a81dfb5f74597c7e579bbde864a4e21a06181c157. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/AUCI10906422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a99d54d4ada33ffdcfd158fd6bb2f0d79e170923e1467274092ad7890c1bc8. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AUCI10605103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x055be2de11a2c5f32ea27e878dbd171c2488c5f6235abb56ca2029f8a986cded. 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/AUCI10605112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49d8572502006cb804c0fd63e4873d1a122ddbc46a436494102f5d58cafbd1ef. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/AUCI10906419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52b5e71a023ce0070e1323bc64c535a383002d662e6f85cd72e9f69695aba3b. 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/AUCI10906420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45797537ecb0d3249d2b3d70af1834821acd3049abb0e09850070f66c9d284f3. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/AUCI10906421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec362ac7264d710dbd35757ba265ea9f827ec43c25a5ab89e39c723abb4fc261. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/AUCI11210010.