Alexa Still (born 1962) is a New Zealand-born flutist based in Oberlin, Ohio, where she is Professor of Flute at the Oberlin Conservatory of Music. Still studied in the US with Samuel Baron at SUNY S
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 0xbb5584637f0e498823cce6a9b6172d76c18ba5002decf07efb0a383526d165b3. Chain 2 (Bitcoin): anchored in block 953970 (2026-06-16T16:09:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a553bf8-a2f5-4162-a811-c3a926a1b6a6.json and https://artists.proofprofile.net/proofs/artist/2a553bf8-a2f5-4162-a811-c3a926a1b6a6.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 0xd4207ebae3d4e8bef9aac620f9f2aa4c7025d2ffd3a3c04f53387eb71701e9ae. 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/USYAJ2300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2632a73981ed97ed851b6f4b606edef8dcff44fbd160cdebbf2cb05993037df5. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/USYAJ2300010.
Beiser, Maya: World To Come - Music Of Land; Part; Tavener & Golijov
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cbbb78c9c4f082a6b5907fb9a8e1dd06c15df0f93647e8a88b4807203ce4a6. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USKO10302766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1c915401a0e9dd2994c289cb4fa45581eb76c2846f1e0b2f20b31e82366b6e. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USKO10302767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a130f4e72dd3503b601f2aefbeb4d6f22eb9a12b0f5366177bb582b0e5a84e. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USKO10302768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3aff3d98949d1f7ec69165b149b403227c73395e31e2b1717a3d38fa316d2e. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USKO10302769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a0200076c38720dbe37c6f10e0f305c3acd96bb29a961b9d44a807a303ed8a. 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/USKO10302770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb19c456934ac43cf52b8cdef5c5d11db417044d8f73020256c32eedf8e76b2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USKO10302771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf256d8a2f0eba048a384591c590943ff9abb134372dac49c9c4c9a44e25ddb. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USKO10302772.
Liebermann: Five Pieces From Album Of The Young; Sonata For Flute & Guitar; Eight Pieces
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd689539f9e140a71605dff7a3f8b0bee876b84c53dc8dae5982a9e7bcb109fe2. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USKO10302789.
Liebermann: Sonata For Flute And Piano: Lento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59007be7549381131203a6b8e847212a08e23ea450d6093d5b2bd3c530f0a091. 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/USKO10302790.
Liebermann: Sonata For Flute And Piano: Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x144d8cb7c2063272374e95ca6f424253e18556d1f22da79d29fda5899912275a. 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/USKO10302791.
Israeli Wind Virtuosi - Mozart: Quartet In B-flat, K 370; Beethoven: Duos I, Ii & Iii; Quintet In C
Bloch: Trois Poemes Juifs; Evocations; Two Last Poems... Maybe
Still: La Guiablesse; Quit Dat Fool'nish; Summerland; Danzas De Panama
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82297d2c2d0f8f6bbe79d48056305fa2dd71a3d5129218029fb00bdecd71da06. 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/USKO19300463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadad9c20f35ac5ad8c541ce5314f4e2960fd23871588b54e19579e192fae5bbb. 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/USKO19300466.
Still, Alexa - Music For Flute & Orchestra By Arnold, Griffes, Hanson, Hovhaness, Bloch, Foote
Suite Modal (For Flutre & String Orchestra)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fa62d0d8aa067046a1035ccf3c3b9e387dbb0819b370a604f7911dde0dc101. 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/USKO19100456.
Matthew Hindson: Flute Concerto "House Music"
Flute Concerto "House Music": III. Lounge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbecd4ec4604e2ee15889cd52ed244a3ab97308384803da6e9ff82ffee80623e9. 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/USYAJ1500016.