Benjamin "Ben" Pollack (June 22, 1903 – June 7, 1971) was an American drummer and bandleader from the mid-1920s through the swing era. His eye for talent led him to employ musicians such as Benny Good
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 0x72685e1402265e0e2eff9a171de318e332f1f9490803fdf017fa60230c30b9f6. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83af540c-6138-4134-b100-fe6357054902.json and https://artists.proofprofile.net/proofs/artist/83af540c-6138-4134-b100-fe6357054902.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Really the Blues?: A Blues History (1893-1959), Vol. 1 (1893-1929)
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 0x037c5f3489bd4ece7a9865578444fec111be53a8870ea07b3cc76d2b2d81b1c9. 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/USA4A0901004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c22dc92f6899ebcaaa430d30a050c49acae1d76dce61b87970d74687bcdf50. 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/USA4A0901010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa889651b826242e57b29b1ff80d75a7a2c858fc4d2e3442fc06f6c7b32822e. 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/USA4A0901011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26209deb2bb314bd676e57f030c2e186b84c2bd0f5bc71862b5b6fed68d374a7. 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/USA4A0901012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4726c23e7afd3c8480453a49e1ac4b984ecfd8197eb27fd3212b751fabf9dae5. 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/USA4A0901015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fe01a0f3acd7eff57ade18b0aab4fdcd81ddf39b703af9d1223562c7f0a699. 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/USA4A0901018.
The Well-Tempered Clavier: Prelude No. 1 in C Major, BWV 846
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f678c5d377cdee9ec5db0b3f8f7660daf959ed6ebe612fbee4508f6856119cb. 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/SEWDL6018029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1681200dcc1fb8fa7b4428287cb925d60a33147910a119ca17a7900f8d28d26. 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/SEWDL0776410.
Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 4 in F Minor, RV 297, "L'inverno" (Winter): II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01908695d963c6757adbb0a4c7167957d0fd06e5885bafdb7ce503487fbd5e2. 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/SEWDL0777411.
Concerto in G Major for Viola and Orchestra, TWV 51:G9: I. Largo
Ladislav Kyselák, Capella Istropolitana and Paul Kantschieder
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ed0e377e7890cc4c4b9cbbc47f5a6488eb7e65616fb15d75b4e718d63006b86. 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/SEWDL0710604.
Orchestral Suite No. 3 in D Major, BWV 1068: Air
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1f07048e7fb781ba0a360496c3f15a1c31b3cdc7b7f1df799e9d6134c2962e. 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/SEWDL9750009.
Concerto No. 1 in C Major for Recorder and Strings, TWV 51:C1: III. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c46cdcc5d217972b3ebf2715c1a38388ba08130ff7f860786229245dc2bd3d. 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/SEWDL0741810.
Concerto in G Minor for Two Cellos and Strings, RV 531: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e50f908b4d50eb6f34c59a089bea28103f506f319ef9047b78ad8d361c6965. 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/DEB790303229.
Concerto in C Major for Sopranino Recorder and Strings, RV 443: II. Largo
Karl Stangenberg, Munich Chamber Orchestra and Hans Stadlmeier
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce9ed26f046a1d17eef0d19b5d5a24dd10145693b4feb638cc0177c4fa1ee0a. 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/SEWDL0746902.
Prélude non mesure No. 13 in F Major for Harpsicord
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c55c5ebc57cdc64569c6ef0b7e2515a9f93f7f79ac281017246e8029607a6b. 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/SEWDL0711112.
Sonata in C Major for Recorder and Basso Continuo, HWV 365: I. Larghetto
Karl Stangenberg, Alfred Lessing and Max Frey
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a609c7e7d4ec4f45939b99581b54c5d1f6e8e24aaa659ef864eda880d95760. 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/SEWDL0747013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c839c328808d8b706cbaf2b542d3690e1930cbf4d7716f2ae561e345225bd2. 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/SEWDL6018030.
Concerto No. 13 in A Minor for Oboe and Strings, RV 463: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6dde059f142779f57bd6ec51398c50cf7152c68746873671338301508721a9f. 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/SEWDL0508514.
Double Concerto in D Minor for Two Violins and Strings, BWV 1043: II. Largo ma non tanto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a9ff0878e77bb5182a8179a10de3ab5f640a129bd0304ef1712f100a433519. 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/SEWDL0533102.
L'estro armonico, Op. 3 - Concerto No. 9 in D Major for Violin and Strings, RV 230: II. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd79c4b8f491bea2cf298fdfe04381a00de00e0dfc134dbb60e3d03b7d94b22. 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/SEWDL0777417.
Concerto Grosso No. 1 in D Major, Op. 6: III. Largo - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb905a5d2b26508d57400604e986a9132380dfdf79f91f80605f5994de90ae905. 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/SEWDL9438503.
Concerto for Oboe and Violin in B-Flat Major, R. 548: II. Largo
Pavel Popov, Renaissance Chamber Orchestra and Stanislav Gorkovenko
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79c60ba29610ae2f69dbf4c8a0709f82f687ed6b4de442fc5fb5a2a404e6a79. 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/DEB790303226.
Schellack Schätze: Treasures on 78 rpm from Berlin, Europe & The World, Vol. 33
Jazz Age Chronicles, Vol 12: The Song Hits of 1929
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d30357f6b2bab6c7a4d078e6c139a5bebeeb95782011b1a96f6ea2f543748bb. 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/USCXG0800218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5006f630344171138d26e6484bc1fe4ed42bac621fa23af2ac5d71629e4c8be0. 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/USCXG0800228.
Schellack Schätze: Treasures on 78 RPM from Berlin, Europe and the World, Vol. 18 (Remastered 2019)
Ben Pollack, Vol. 4 - New York 1929-1930
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccf8d53511a4b08d5bd602e48cdaea96736af3ca3a6ab7171f8820b7b054e42. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBMR1981502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ff3589088febf86b8a495a7996d1324b1f43163af68c8597071cc1fdd096e2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBMR1981509.
Top 75 Classics - The Very Best of Ben Pollack
Best Of The Essential Years: Ben Pollack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f1f62b7764ec640d991d9a99f88ea37b587f1b1bca851866c65dc68a597b4ce. 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/USXTG1100794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dc26e2d90a966d58855a6bbdb53418c14e7e4dfe7313cd038b2357a73fc002c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USXTG1100798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55dff40ea5a8520c3dfc1d3f8c45af04815af0bef8ad8e64e08f5eb59a19394. 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/USXTG1100801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e51da9e5c858dff4f2eb4ad5ee8dbbbad68356534fd9189b59b021e2b0fbf8. 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/USXTG1100802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05684bee1b36729e34988b9851056c33473dd0f2a7e30a1768b7350410aca294. 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/USXTG1100803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9c98657ad45a2c01da6bcffc1e85c0539b0a14cdd4b262c6a67eea825c83c9. 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/USXTG1100805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc578c0743b8f083e83063c8781559b33c8250a7f9db8ebb3868b7d7a1ec737d. 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/USXTG1100806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653b5eed749eaaf1ae0324b76c0a09e9b8f1677e5fe1cd820d84a348758d8b73. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USXTG1100807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e1a1ce75ad669e4fc135c6447ed407d7d30c87e401c6a0f4743de2146911f4. 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/USXTG1100808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98365e503384a71338b7560685707290f7c6c3078d48bb15ba22567912b0951. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USXTG1100810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf864b08df77ad7cac7f047d90258a84fb8bdeb0a374a59a646cc78ff48673a94. 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/USXTG1100811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a5f56612f2a83e67ea2ee55b5f5d59d2801527971c1c4ea9ad876a05c44cc47. 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/USXTG1100812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7e550eabd6fbf205be8b98f51629e8c7c01177dbf499fc2100c115b6072b7a. 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/USXTG1100813.
There Ain`t No Maybe There In My Baby`s Eyes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5de2a6cec4b12cbcb27584bc903eb26b1f39ecad8c29d0719bb18de4d3ba47. 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/USXTG1100814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd3170f24bf2fb733daaf898a081511e6b72f75309f37772a208570a14ae56a. 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/USXTG1100815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc58e5b4a808ee7131247060ce69000b98a17394a352dd526e7260197f8e91b0. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/USXTG1100816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d3f8db8a4ead19ca6d1c7c20f5d68345341b33881bd27a089e62292e3456e1. 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/USXTG1100819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0375406f874e7ae58f08bb6ffd2d8b88d361d7f2a0987d5db129f42f4497ed52. 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/USXTG1100823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4cbabb401e19f180bc13b0c44806c7d02b0743ba28b4fe53de3a53abdb2b28. 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/USXTG1100824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854fe2f7771bc1e54bd3312f1c7567180d202a53b93bb49c3b0e0da5477f38d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USXTG1100825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4242f0d4b27169b66bd16288c0f7a84290f01555ed6bd68da53620899ec1e8c6. 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/USXTG1100826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1cc0233c93a8f9ac669eea9f6a4847d36ac2ec54324a5c41db42f606eecb62. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USXTG1100828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5a003d1bd0d06325027f80600b89bfd936bb8c2a7c6dc2b1ede1a54710b6bc6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USXTG1100829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e965141cc43a34f2736c731ff8d6966d7f25f3e49fd48959609c61dbc74e4f6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USXTG1100832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d42441e5eae4d7619ebfd89af06c204a955d7da907c87431e329ec6002dc8c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USXTG1100809.
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
Swing Time! The Fabulous Big Band Era 1925 - 1955
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0a60dfe8d2b086485845151550666f06790d4072e9acc1edaca4623c8927075. 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/USSM19304095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d3d7a18b3aef201f88f2732d7d8ad363be7a71acdc156cb6e4bfe8aeef8f2d. 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/USSM19304063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473910506e6ca399a35124477e707d285d7bdffb1e351e242ff90bf4f1cccb3e. 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/USSM19304073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb19c72afcf3a97b147a95c458655758a3ef0e2ad8c3813501d52eaa08284432. 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/USSM19304074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb89d16b9f9f16ec9dfc0804d0e079f1627c8303c5943d586d4ba4aef773669c. 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/USSM10028689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b2be26bd780e29a02ac95e67c9801891b52e21e8e8801340854bf3c48a6c20b. 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/USSM10027982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc887531f01308019fb423ed89e8892a08ed29a606122d300d9505512a51a777. 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/USSM19304086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a63275cdce75d410316c45e384066fb86392164d90d92faf7eed5b18374517. 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/USSM19304082.
Benny Goodman and his Music Hall Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443370f83c34f25cfb74f69c16d314fe121bfebb6ec994fead480b1588cc7a44. 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/USSM10028557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3874f6eed9542e1fa4ebc7743829a60eb4a424612579abe6e153f49fd7d0bd. 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/GBSWE0914605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe7171029a917d4a12c461188412c1120d70b95aaf9e54b074d05ff92e0bbef. 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/SEWDL0451501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfe41444988fef232aa59455bdd1a181b72733a8885149d061d06e69f314c37. 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/SEWDL0417002.
Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 1 in E Major, RV 269, "La primavera" (Spring): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eb323f7e7cbcf56018ea4efa0fb6c57c4488f4d2cae37108f95b589e95bf76. 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/SEWDL9750003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcace7395630a8352977e0bf6f2f79061361edfff075174ffee9c4cc57a085a07. 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/SEWDL0727809.
Le quattro stagioni (The Four Seasons), Op. 8 - Concerto No. 3 in F Major, RV 293, "L'autunno" (Autumn): I. Ballo e canto de villanelli: Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa041e9e42438b6a2d1f0f7d0685dc5b56a410451de5df8301551c272a1e4a72e. 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/SEWDL0721507.
Concerto for 2 Mandolins in G major, RV. 532 - II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ae5b58d4d2f9f7fe9faf05ae07240a9dd2e6ee84781f8572ad08155c906c00. 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/DEB790303223.
L'estro armonico, Op. 3 - Concerto No. 8 in A Minor for Two Violins and Strings, RV 522: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf77731859d72d91ca8b0d7e0c8030d665fa9c7f9cdab39b4056941fa17c28c12. 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/DEB790401205.
Concerto in D Major for Guitar and Strings, RV 93: I. Allegro giusto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac098e5b6b715407b811757f3d7b7f58f798e559a7d0a41b8eb67ddc9b84999. 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/SEWDL0713301.
Concerto in A Minor for Bassoon and Orchestra, RV 497: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8354cf6eb2bc84f855afe2133a5b94422ae89c5a356e528ed48c6228d9e726c6. 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/DEB790301795.
Concerto in C Major for Guitar and Orchestra, RV 425: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a46ef2db980eb7a57bdd36f5cf7db59fb55a0604365b2d15013df3f3058240. 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/SEWDL0713307.
Concerto in C Major for Sopranino Recorder, Strings and B.C, RV 444: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89342c7a1a7cfe6747dccf7de77aeddef944a7ca45ba980ea548e95c4aab8121. 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/SEWDL0746908.
Concerto in G Minor for Two Cellos and Strings, RV 531: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c64814db06f375eb1e8428e5893c57b659faf20367a3e102a033c2560ce885d. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/DEB790303228.
Concerto No. 2 in G Minor for Flute and Strings, RV 439, "La notte", Op. 10: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5ea840f78effc28318fb2b75e450e21a599738813d60cb56dab342ea1d5921. 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/DEB790303452.
Vivaldi in High Definition: The Four Seasons and Concertos