The Louisville Orchestra is the primary orchestra in Louisville, Kentucky. It was founded in 1937 by Robert Whitney (1904–1986). The Louisville Orchestra employs salaried musicians, and offers a wi
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 0x3d14481568d5a4aed69d0042a93fa30e581740b706482caf8bfc1c4538bb77d4. 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/bdf8d04b-6cd2-44db-a582-b59fb0b2cbb4.json and https://artists.proofprofile.net/proofs/artist/bdf8d04b-6cd2-44db-a582-b59fb0b2cbb4.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 0x4b884452e6be3daa9f1d0464e91219e333a1fdc8af78ee07065c1638223965fd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEN962237201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ade5a75de248212d4eb27721a0c3b69a587ab6645de4ce94bc17d2813691e82. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962237202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1b139821ecb5fc51e6eba4689254e8666da15d79abc905195980844cbd7129. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEN962237203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa14872b4a98831c339825cb7cf717b45f8da6bebbf1599a4bbbd03ba4c79502. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T16:51:58Z), 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/DEN962237204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2172a1202158e2b79ff0659c425feac0985112e1e39ba3d05db693732fc3fd27. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEN962237205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed5bbc07a375ded700ce412eb9e5588276759130e9758e8134246fd45723287. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:04:03Z), 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/DEN962237207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad04a9a269cf1f041a4935231af9113b3a67150f4fa78ea31d456483de373a8d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEN962237211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1592eb61bfdb51c31e9cc092b28235f84be6fc6f1165a26b7c57f8c06d996e51. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:31:06Z), 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/DEN962237206.
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 0xe7420afde71b08950ed4fa41197eb24e3a30228b36a1190709ead85a011f13eb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEN962237208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b8f1d47129f23456477deb47ef4608d9d5e16a603cc2ba5af649bb25eb3d5e. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/DEN962237209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1478cd66e593ac2cf4a2da8307526dd2e3337a6f50583849efc432fa42960b08. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEN962237210.