Sandra Lou Posey (June 18, 1944 – July 20, 2024) was an American popular singer who enjoyed success in the 1960s with singles such as her 1966 recording of Martha Sharp's compositions "Born a Woman" 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 0x2488f0441a34cecc56610272920f443703e55d39b681fe240f69e2cc619979e3. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e20f5823-faa5-420d-8a72-605fe67a7a48.json and https://artists.proofprofile.net/proofs/artist/e20f5823-faa5-420d-8a72-605fe67a7a48.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
K-tel Presents Sandy Posey - One Fine Day
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 0xc2b2147f72b6f3fc304a9e20aaa081e7e3609f6f1d0094fd3dd0716dfee0c00b. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:23:45Z), 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/USAFM0503377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73d1a13dacb338bfb869644c3ea6cbbb343f148d4dcbddb3791ef70409cb4f07. 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/USA370946185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa64dff6f1dde4df6687f77835eac2c9f640c12ee3f7939970e67552b8a8e1f44. 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/USA370946191.
What a Woman in Love Won't Do: The Best of Sandy Posey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe55757c3f34b6f9d04da952f5db213071b838aa41b857722d0606c7b5e5e5021. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/USDEI8102295.
What a Woman in Love Won't Do - The Best of Sandy Posey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f38a704e590f1e9ec30601f83885d23496bb773fdb1bef9fc27a593e5b0492. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/FRX201929928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6eef4b7cc562b8a6b2b6baa6e8b8febc8ab83be4fcd7cad0fa5804b0d7d2c9. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/AUXN22177472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861e3e23bc2852f2995158a33c4653369b489a5d4b2741200cfa6fe9da527f06. 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/AUXN22177475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2578c44a283a067dd1649cc7fb596002839fa1078df8af32661a263ad752cd5d. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/AUXN22459250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94601cd740e5fc24ff9ead7b9e81ecd382030b863015a71a6dcd8dcb5b83a4c9. 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/AUXN22459252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3104e05932ac91e82f9af9e73eb4387408b04bca559b95cea8f3ae74dcc4c7. 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/USACU0504779.
Put Your Hand In The Hand - Re-Recording
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc44d0448f0dc6e124bed9347e88f6dbe57d49d7eb3abd505cc6c473ae99463a. 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/USDEI8004091.
Columbia Country Classics - Volume 4: The Nashville Sound
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e48d7f29d14817eb2f9bac8f91cc92f80c65b0941640af5943ed8f6ee0b98df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSM17100644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692e0df4684ea7760732a219c3a29e3f62f9486e48aa67668470f9f4d18b203e. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/DKNH31600113.
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