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 0x2f6da4942dc22d10cbe1fedf86abb475d64453c6ea0ac844352cba208313e50b. 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/ea35cc00-7d7c-4e38-9df2-59dd33395a97.json and https://artists.proofprofile.net/proofs/artist/ea35cc00-7d7c-4e38-9df2-59dd33395a97.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Florence Price: The Oak, Mississippi River; Symphony No. 3
Florence Price: Concerto/Symphony in E Minor
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 0xfdd4554cade61c7ec6db26d12872ff681d1a0470565ee84b0248bb758e062fbc. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:00:27Z), 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/USAB11129502.
Symphony No. 1 in E Minor: III. Juba Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad024bdca95c68e233438dbe4fdd42c24fe41e2e6c9ee561addfeff78bf6b0c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HKI191818903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93983dae5da95ea331a8722b4408542a75dcbe8bc82a0be9fa4d26f7e960c282. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/HKI191818904.
Symphony No. 1 in E Minor: I. Allegro ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x560677be5dce40589156ccbb84ab38a04e6a36ee70c45231e5f2042f6d464da1. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/HKI191818901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93983dae5da95ea331a8722b4408542a75dcbe8bc82a0be9fa4d26f7e960c282. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/HKI191818904.
Symphony No. 4 in D Minor: II. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b53b2b28ceaab32a7d550f11ebd9568661e3e9f4b5d7005b400855e35ad07d2. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/HKI191818906.
Symphony No. 4 in D Minor: III. Juba Dance
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27dfe96a72a7196d9d714f06e6119c631352c6d10f0ec0d8fc31b4e5b4aff75c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:39:50Z), 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/HKI191818907.
Nearly Lost: Art Songs by Florence Price
Meditations: Florence Price Piano Discoveries
Florence Price: Piano Discoveries – Excursions
Fantasie Nègre: The Piano Music of Florence Price
Price: Symphony No. 3 in C Minor: II. Andante ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fd55470e3c4d1173152bfe2db5f10e462e51e09c804d299200fefbe3f02c61. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEN962101731.
Symphony No. 1 in E Minor: II. Largo, maestoso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3784e6c195af566bc425503022960dd7879bdc87794de2be468cbed8945bc6. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEN962101732.
Symphony No. 1 in E Minor: III. Juba Dance. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0dd2dd57efe14e43e88fd59a2115cc1f78696203ccc1e8f9cbca63a2ae111d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEN962101733.
Symphony No. 1 in E Minor: IV. Finale. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda9368269b388cf5b00330875acacd0e084e6eab4f24ccee7bcaa65d76a0e44. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEN962101734.
Symphony No. 3 in C Minor: I. Andante – Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bbb0fa3fff5cf9d19f993b0b756f1b55af32c925f50b0c8c3571ee75ec130a. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEN962101741.
Symphony No. 3 in C Minor: II. Andante ma non troppo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb8666105edf837e77f6f8c1e111915096b06493dbe0e6b7b1806f6f1633808. 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/DEN962101742.
Symphony No. 3 in C Minor: III. Juba. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbd8b67aa3d69ad5bb0d717383f7a3f02135fa0f900cc5a92867a283600d0812. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEN962101743.
Symphony No. 3 in C Minor: IV. Scherzo. Finale. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c500c5d4b9f681e809453698e84c106f2da5f4fe2cdb46522c442c99d12c5d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEN962101744.
Price: Symphony No. 3, The Mississippi River & Ethiopia's Shadow in America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf90eed6be8b860f0579dca05776ae8241d0bc41ca065ec24e8be9a5a733e0ec. 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/QM4TW2216517.
Andante con espressione for Violin & Piano
String Quartet in G Major (Unfinished): II. Andante moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d97963269e1741198ec16acad2b5495cd02320c0d04f21cb8e958d6ec81c8c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USSF61800358.
Piano Concerto in One Movement (Excerpt - Adagio)
Piano Concerto in One Movement (Excerpt - Allegretto)
Scenes in Tin Can Alley: Piano Music of Florence Price
Florence Price: Mississippi River Suite, The Oak, Symphony No. 3
Raphaela Gromes - Florence Price - Adoration
Price: Adoration (Arr. Gray for Violin and Orchestra)
Wander-Thirst: The Choral Music of Florence Price
Price: Piano Concerto in One Movement: Adagio cantabile
Price: Piano Concerto in One Movement: Andantino - Allegretto
Price: Ethiopia's Shadow in America: II. His Resignation and Faith
Florence Price: Piano Concerto in One Movement; Symphony No. 1 in E Minor
Piano Concerto in One Movement: Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecbaf0f64d94d6a6f31f469809dc395d40ad551cb3aea5c802f3d3f6dc20e9db. 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/GBBBC2201954.
Piano Concerto in One Movement: Andantino - Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfcb16be65aee954226fd55e1b085fbc474014e9657d189e5fc9914367a9832. 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/GBBBC2201956.
Price: String Quartet No. 2 in A Minor: II. Andante cantabile (Arr. Colbert for String Ensemble)
Adoration (Arr. for Clarinet & Piano by Marcus Martin)
Price: Symphony No. 4 in D Minor: III. Juba. Allegro
Price: 3 Little Negro Dances: No. 3, Ticklin' Toes (Transcr. for Solo Violin and Chamber Orchestra)
Price: String Quartet No. 2 in A Minor: III. Juba - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36becd6b8453ada279e227770bd42fedc6567fd718d9a31595fdbab8bf0c19d8. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:42:52Z), 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/USPMZ2419110.
Price: String Quartet No. 2: II. Andante cantabile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a052b8f935feb112ac8b9533cd272c9d82b8e342ad9f9b52a93254c55de169. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/IEWNY2452650.
Price: Piano Quintet in A Minor: II. Andante con moto
Florence Price: Fantasie No.1 in G minor
Florence Price: Fantasie nègre No. 2 in G Minor
Price: Violin Concerto No. 1: II. Andante
Violin Concerto No. 1 in D Major: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf670eaf8fc89b7e79cd51f811471ad25cdeec3430d7525bb9c0d55735354436. 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/HKI192439502.
Florence Price: Octet for Brasses and Piano III. Tempo moderato
Price: Violin Concertos Nos. 1 & 2 & Other Orchestral Works
Price: Abraham Lincoln Walks at Midnight: No. 5, He Cannot Rest Until a Spirit-Dawn Shall Come
Concerto in One Movement: Andantino - Allegretto
Florence Price: Fantasie nègre No. 1 in E Minor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7979861f1398b64946a33dbc5465e68d8561c9272a0365dd8af55c9e31e7a1. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMFME2511318.
Dances in the Canebrakes (Arr. W.G. Still for Orchestra): No. 1, Nimble Feet
Project W: Works by Diverse Women Composers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f33ffd674a481fb725a1f57815f212930ef6f24fa5937a82e0842ebc79239ec. 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/USB801067432.
Dances in the Canebrakes (Arr. W.G. Still for Orchestra): No. 2, Tropical Noon
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82a1514e1a79cf54a0248e036738379e17efbaf9bfc9441aeca590887bf2730. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USB801067433.
Dances in the Canebrakes (Arr. W.G. Still for Orchestra): No. 3, Silk Hat and Walking Cane
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b2e6d68d5c02e4b146933f395f81930ee060f9adeda31c4f954b68874c729f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USB801067434.
Adoration (Arr. for Cello & Orchestra by Julian Riem)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0172c38d8398b7c42e33ff607b50e5b9897a455303802cb149153d5b92576340. 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/DEE862201853.