Barbara Morrison (September 10, 1949 – March 16, 2022) was an American jazz singer. Biography Born in Ypsilanti, Michigan, on September 10, 1949, and raised in Romulus, Michigan, Barbara Morrison rec
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 0x3d6a219dcf4c5694579b9991ce7de062a2c44551863f457289e51359b4aa80ab. 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/ed480fe7-7744-4cd0-9e51-d9acba6b399a.json and https://artists.proofprofile.net/proofs/artist/ed480fe7-7744-4cd0-9e51-d9acba6b399a.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 0x6e45f2869eb32787394d76a2f0f5323377d57081a8ff5ddd0f70fca6bf4fa9f7. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USCGJ0942277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf52e553b8a68ced41a33d037420768723e3f64679b1543b2435f2fc4787b1f7b. 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/DEE289242902.
Los Angeles, Los Angeles, The City By The Sea
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991e2ee49314d5113f85898b37fe19776461d189468041ed21c1c77aa2fe49a9. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/SESCP2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe8516f958be92e9c6827a91040849791982d0ece36ce6e19d5bbd9193066d9. 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/QZNWU2241277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd81340a34242c86a536f5352f4857325a74f0171dcfd767222d193479727372. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAJI2537958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389f45cccc6fd780196724bfaea05681739c622223f705ef380f3fbfb7fbaddb. 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/USFBR1413202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x415205b9414f46f25de23e43a3351bb5dc5082148403660889911a99c1be84ad. 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/USFBR1413206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd804a9dee1789078b156cfacdd24b8005d4acaf2601d49ec447cc6c1fee69f9b. 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/USFBR1413208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ab50c284986cf0e80b7ec1531c021b7a56ef75087b0bfb09a7347d5b544cbd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USFBR1413212.