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 0x3546be32f916921086bf1188dee917796d38a0fd68fe51322452ac9713eee4ca. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/293531bb-b657-4083-9de7-13b85420d57f.json and https://artists.proofprofile.net/proofs/artist/293531bb-b657-4083-9de7-13b85420d57f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bach: Secular Cantatas, BWV 36c, 201, 206, 207, Quodlibet BWV 524
Schwingt freudig euch empor, BWV 36c: V. Aria. Der Tag, der dich vordem gebar (Bass)
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 0xf7885d01956b959187275664a134a029e518d85f464f79793d70afb9f5d71ae0. 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/DEF059730505.
Schwingt freudig euch empor, BWV 36c: VI. Recit. Nur dieses Einz'ge sorgen wir (Soprano)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d3741881a8589e2dd92d0d53fecadef05429438e399fbe599cca4ca93ce1b7. 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/DEF059730506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe160bded374e72b792fe24d988c09fa1cabb762b07994355f9d696e86b522558. 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/DEE861600494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca79e46bb3465d9bbf8da453ce10415137e04bdf4df968ccf5327e20546136c6. 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/DEE861600495.
Elias, Op. 70: Teil II: Der Herr hat dich erhoben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d3a721aaf84b9a26ec7808e0f125b1e61c4cad5dd116d9335607957557255a. 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/DEE861600521.
Elias, Op. 70: Teil I: Die Tiefe ist versieget
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc46022ce5ebd2aef6cf2eb565e1f362f8ef4726be6e0771cbced9ca363c41b. 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/DEE861600496.
Elias, Op. 70: Teil I: Herr höre unser Gebet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98bf81560ccc54642d391ab826d610b534dd5e4410d636d97f60370e6e1b4f3. 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/DEE861600497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96e7e8c9b6c72f3bbf8202b5724428b3f5ec817fca0dbb088f87e7a3fe45fed. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/DEE861600524.
Elias, Op. 70: Teil I: So ihr mich von ganzem Herzen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37d0a6741805d0370fa7f432c0cf6f7170abc1283ff9d1686fff7a19f85cd216. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/DEE861600499.
Elias, Op. 70: Teil I: Aber der Herr sieht es nicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6477c07c9691eb30a79441fc45b8e018dc98754cf5cada16056951f207d53eb4. 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/DEE861600500.
Elias, Op. 70: Teil II: Hebe deine Augen auf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24efa038102e70081839f58be68405caf97e71b013982d7bfb8b6cfeca70e67f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEE861600526.
Elias, Op. 70: Teil I: Elias, gehe weg von hinnen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13be015522789057b4be2a17c98c9d18e9ba84a0383d9a62f3d5d5e9ea619a51. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEE861600501.
Elias, Op. 70: Teil I: Denn er hat seinen Engeln
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a1b95e5476f67a07ccd97421b6e94ec70722a7ad95efd086fd6fb93e6aaf12e. 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/DEE861600502.
Elias, Op. 70: Teil II: Stehe auf, Elias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf09ee6569d870bd91c83b614b78045527c191c3b846181ae630970f949ca1764. 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/DEE861600528.
Elias, Op. 70: Teil II: Wer bis an das Ende beharrt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b055de3e6174d7829551c944827d46cd95548da092ff3134435df71b529c56d. 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/DEE861600530.
Elias, Op. 70: Teil I: Wohl dem, der den Herrn fürchtet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919dca34eaa1449f2006d7cdc1b2b86197808e5c845aebb95ff26947f00ed37e. 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/DEE861600505.
Elias, Op. 70: Teil I: So wahr der Herr Zebaoth lebet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e93a3b0403c2cb98d11140e2666384e80b90774d8f3df1cf88d28e8b916774. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEE861600506.
Elias, Op. 70: Teil II: Der Herr ging vorüber
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00ff2029ddd2491a3cd0a99dac49d8350342c9acc3316b8e342ef444eaddaf5d. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/DEE861600532.
Elias, Op. 70: Teil I: Rufet lauter! Denn er ist ja Gott!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34899bdc3cf0a54f2342ceb6eaa3fde433fd8e88516523ecf852bebef14c1c75. 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/DEE861600508.
Elias, Op. 70: Teil I: Herr Gott Abrahams
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a53320f5d5e65882db7e6cb5cf9cbf2c4331bedcbd3133027884a06f242524. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEE861600511.
Elias, Op. 70: Teil I: Wirf dein Anliegen auf den Herrn
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac21c3a8099383fc6d3c766872e54805d535bf4c2f2c23c1b8fc864b7868b70a. 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/DEE861600512.
Elias, Op. 70: Teil II: Aber einer erwacht von Mitternacht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5212ae309e832cbb1d454e874c88663e40fd3f6e0b7aad61a8fa7537efa97087. 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/DEE861600539.
Elias, Op. 70: Teil II: Wohlan alle, die ihr durstig seid
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9941c2e1977738e687928159f2a6cbfa92dc293ae490c31953910d37cc7b0f6d. 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/DEE861600540.
Kantate am 1. Advent "Die Nacht ist vergangen", GWV 1101/22: III. Aria. Angenehmster Tag der Gnaden
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb435a50d213857e558d3fd8b99a308af6e20bf8059abf36796c4dbb24f7d23d9. 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/BER181030703.
Symphony No. 3 In F, Op. 90: 3. Poco allegretto - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a9faeb74d86f805c8fbd548a6a8aaa8b86ed85858519690c3bca74989683d9. 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/DEF059205343.
Sur incises for 3 Pianos, 3 Harps & 3 Percussionists: Moment I
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98902a5711349e6aafd2f70427cc0ea14df552bade6868d2ac486d76206c5b8b. 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/DEF059904931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e5fa059b2494ec45c9ef4a3fd7666e1979bd1075389f65d8e0c0d2e719831d. 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/USHM19823105.
Trio Sonata for Flute and Violin in D Major, RV 84: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7faf11eaba88603e103d04596ae84b88f7a4f973f5d9494f03199b6853bd37a. 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/DEF058001781.
Concerto for Flute and 2 Violins in G Major, RV 102: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e5f9e7c5df09ea67e8ac1ae1d673dba0a58f29c87a1614a6b36881299d2a7bc. 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/DEF058001792.
Concerto for Flute and 2 Violins in G Major, RV 102: III. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec54261ffb392948a5e657e16f544a9bc993d16f76d0221a1a1adfe45c366dd. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/DEF058001793.
Concerto for Flute and 2 Violins in G Major, RV 102: IV. Arietta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4740eeb0d0ae4075a046bbaaaaf922c2af91da53d7027cdc80051b4719559d3. 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/DEF058001794.
Concerto for Flute and 2 Violins in D Major, RV 89: I. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefb99d147143d1256032027ec679561ef6f800733bd934ba44a64c79fb76558. 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/DEF058001801.
Concerto for Flute and 2 Violins in D Major, RV 89: II. Cantabile – Andante e poco vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa11b8909ce2d59722675f925cfeaf3c8794c16dff2451bd0e092e5cbe844cb. 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/DEF058001802.
Brandenburg Concerto No. 6 In B-Flat Major, BWV 1051: 3. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d24124011457df2d3700ce99eb9f97c7f8d980fc2eb9d93f6df2db254670cd0. Chain 2 (Bitcoin): anchored in block 957034 (2026-07-07T11:52:37Z), 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/DEF058702163.
Brandenburg Concerto No. 4 In G Major, BWV 1049: 1. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aa52856162f3c52006e348ec531174c1c235887c286534a907779330d8440be. 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/DEF058603591.
Brandenburg Concerto No. 4 In G Major, BWV 1049: 2. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6745078b88175335f5ef96b3373aa623074b1ffa2caa34f02b5b188bb8e94c63. 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/DEF058603592.
Brandenburg Concerto No. 4 In G Major, BWV 1049: 3. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6412f3c892619dae61ab862675b8f3d72c90659cd31ae4763a79020118afee. 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/DEF058603593.
Brandenburg Concerto No. 2 in F Major, BWV 1047: I. (Allegro)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100c90b28f1fe42e67a2ade3756636509ce3d74ecc8fe60e3d97428cd158980a. 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/DEF058603571.
Brandenburg Concerto No. 2 in F Major, BWV 1047: II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f1695b8a2ddb96aa4cb8d08174c11549a3ac2938ad2f6895863b21dd668f06. 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/DEF058603572.
Brandenburg Concerto No. 1 in F Major, BWV 1046: I. (Allegro)
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Brandenburg Concerto No. 1 in F Major, BWV 1046: II. Adagio
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Brandenburg Concerto No. 1 in F Major, BWV 1046: III. Allegro
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Brandenburg Concerto No. 1 in F Major, BWV 1046: IV. Menuet - V. Trio - VI. Polonaise - VII. Trio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa677afed897bf4ea8c80a22052acff39470ebf8a8a9937a0a3844250d0c52800. 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/DEF058603564.
Musical Offering, BWV 1079: 4b. Canon 2 a 2 violini in unisono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e42ad1e46a2f62a7c1332ce49bd4f3f99ca5f1460dc1726483966f649e35a64. 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/DEF057901000.
Musical Offering, BWV 1079: 4d. Canon 4 a 2 per augmentationem, contrario motu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683a5ab783ad1c8a3748ddfec3e0830e19b58b55257a0a0b653b02fbcb12ce27. 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/DEF057901002.
Musical Offering, BWV 1079: 4g. Canon perpetuus super thema regium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c39656913745bb4a0185ff66f9cfb4b069333f7d7a1c7c05cd948c26a12e9c. 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/DEF057901004.
Musical Offering, BWV 1079: Sonata a 3 - III Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596f17cdba268c3c54351fed4d75c6e5d9ae884689af77cf4ac49a7465402054. 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/DEF057900993.
Musical Offering, BWV 1079: Sonata a 3 - IV Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7574c446856f2f0d81f336ee16220cbe4de5744f5bad3d57803326b0c30c203a. 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/DEF057900994.
Geschwinde, ihr wirbelnden Winde, BWV 201: II. Recit. Und du bist doch so unverschämt und frei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7855b01a142944d76f3e64343c06cb42483114630e4b1bae3ec7e4e18256924b. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEF059631702.
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
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