The Castellows (originally known as "The Balkcom Sisters") are an American neotraditional country music trio consisting of sisters Eleanor, Lily, and Powell Balkcom. Eleanor and Powell are two of trip
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 0x8f46d7eac12d5d5b2a389bd3b27483b556ed682fc69b49c69266a73d91d85240. 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/e6d270c7-b31f-44b6-a115-256f2c1cf88e.json and https://artists.proofprofile.net/proofs/artist/e6d270c7-b31f-44b6-a115-256f2c1cf88e.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 0x126eeca68d903bf589fe3a8b600fd330104fca4825800f07052a22ad684be390. 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/USWB12305621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552c1502bdbdf0d3270b5deae8bdbff7c0eac5a5bbdf6a15e672536630185796. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:09:40Z), 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/USWB12306467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126eeca68d903bf589fe3a8b600fd330104fca4825800f07052a22ad684be390. 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/USWB12305621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b135b40d36d37a1754351132b28e76d9362eb93b28786678f995aabae509238. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USWB12402939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x126eeca68d903bf589fe3a8b600fd330104fca4825800f07052a22ad684be390. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWB12305621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdcdd0bf73ec9cb36446b3be4e3b0858c94d06c7afe6a4a9345b5c36fe02364. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USWB12401904.
Place They Call Home (feat. Flatland Cavalry)
You Don't Even Know Who I Am (Acoustic Live Sessions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b135b40d36d37a1754351132b28e76d9362eb93b28786678f995aabae509238. 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/USWB12402939.