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 0xd8457cc3741365f9f923655dfe7680e495da13e04fa2b3fdce2ca261fe939fed. 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/6259ff5d-15bf-4b18-a8a2-7481e1a475ad.json and https://artists.proofprofile.net/proofs/artist/6259ff5d-15bf-4b18-a8a2-7481e1a475ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sinfonia (uit Weihnachtsoratorium, BWV 248 van J.S. Bach)
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 0xf9ecd3ae9e14371766e26c8941dde17eccfb292987e6cdc779c9508f8580e3bc. 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/NLK171700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebcce6ca1d95a3d4a0a3ca622a4ab77fdd903c18a426a17440eee1fdc27929f. 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/NLK171700013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb6dcdcc0b421b9bad76facb034b99a47bda355fb009bc6bc8faa5fd1fae9f3. 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/NLK171700017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5136dcd861475fbb8583c902215ec5d4646fc833b6d5d50c0da0c2074d55191d. 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/NLK171700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4366001f8b0c3ad02849dfef9ac93f49ee259d0f1d02c2e96c222b1520e75436. 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/NLK171700024.
Kerstverhaal verteld door Dieuwertje Blok
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ce66ebc63aa8caab1303d77384dba836e24480971112eaef60370d532937a5e. 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/NLK171700026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a9e559572b35efbc6aea06fb4c9399cdb6be0cb0db09e4ae31c7bba858bbc8. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/NLK171700001.
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 0x0bf2c142718e9566d8bf7c9a6b613ac8786866a47d62b151f87dd17437f02c8b. 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/NLK171700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0b1f8d4b5bcb261e085eb9a201e467a3ad94e4b0316d399b5ce7d0f0be6f9a1. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/NLK171700004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dccd1f000cf1f34f6fa172f0b20e4fd1680f4bd9c268de1041866eda825044. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NLK171700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3833015e9472aae217886bc9435760070c0d026bfafc6b3e7f041e708bf03bdd. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/NLK171700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x973467735842418bab0d1b0d9196add19ff05a3dfcc3b2ff699d3ba156590d57. 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/NLK171700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f0b624dc29a9da84a1f61c6cb2b78e586959c6d8d7e423ab793f11b55410249. 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/NLK171700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bf8dc20aeba5485998dd1f9a23e9cf705a607d2fa80ee9ce9cd1255927c29ec. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/NLK171700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb94be11410367a739b55a52c6d86509da118e0de348849567e99f0d17284f14. 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/NLK171700011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd611bef446ac4c8c8d584dde95002dc1b41c3873a20a0c8fc2e44f346a9ecd. 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/NLK171700014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac4537e06b5fd78dd9a2d60f44cb37306fbcca41185c850fb6a991826696cb19. 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/NLK171700016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d56d5feaec4985b5274392f849f9e4988810a9cb971a036655edce996c306b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/NLK171700020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4929e547d9b891792d5d5c6afabbaac4c5c6f260051d209a84a64fa7029d4370. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLK171700022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4c3335a45cb6421d7211fc48d597efbf7e88fbe48a5fcb399943303bdf1088. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/NLK171700025.
Thematis Regii Elaborationes Canonicae - Musikales Opfer, BWV 1079: Canon a 2 per Augmentationem, contrario Motu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cbe878049601a9c61e49927a47ee4b5cf0790f1b6604ef0b68728185875d9e. 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/NLK170800063.
Ricercar a 6 - Musikales Opfer, BWV 1079
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfbc486c7c32f973e67bf1bdac9016723bd57425bb402a3aa0d75011ba6efcc. 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/NLK170800074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5824d9ae17cb0a97bb52ac7049c896e6c9dd8d20a5df5642d4efeea3ecf310e. 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/NLK170800075.
Thematis Regii Elaborationes Canonicae - Musikales Opfer, BWV 1079: Canon a 2 cancrizans
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd42af377571e265239764a78d3a95df0dc34e574e926864d06e4ac7a7a5742. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/NLK170800060.
Thematis Regii Elaborationes Canonicae - Musikales Opfer, BWV 1079: Canon a 2 Violini in unisono
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdbe202a32107fc3a5361a16f1a03dc99bc9cf4b8b004d60b4efb6ca8f97016e. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/NLK170800061.
Thematis Regii Elaborationes Canonicae - Musikales Opfer, BWV 1079: Canon a 2 per Motum contrarium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29530c568113d84f0311df2d7e654462c91dcb1011c2e5dbfa828ad3771b8e4b. 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/NLK170800062.
Organ concerto in C Hob. XVIII:1: Moderato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee3c1557910ac2d955a0437e15d376f45e74a67bb8201904c586ee33512b8d1. 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/NLK171000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b017997805267219f5d70d0103429060cb42bea2e74bdf279cbccedb0e5f6ae. 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/NLK171000018.
Organ concerto in C Hob. XVIII:1: Allegro molto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9479c5497b3674ff37d42469bc189d55bc0f53ade9f7c6fc52f217bcacff73ff. 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/NLK171000019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8f8696b0dcb5bf915955f38aaabe35837dcf7f3d5317e1e86438ebd7ed6ac4. 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/NLK171000024.
Concerto for organ and violin in F Hob XVIII:6: Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a430fa1c9f1f4fd6e26dbbaa291505e5eefd90e90795abd6b026a2756c11fd. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/NLK171000022.
Mozart: The Piano Concertos (12 CDs, Vol.7 of 45)
Locatelli: The Italian Music Master In Amsterdam
Bach, JS: Weihnachtsoratorium, BWV 248, Pt. 2: No. 10, Sinfonia
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8678cd396ed0ab5503f07e9b278fdaa695999905a42212ac29f1a4b75a11585d. 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/FRZ209616710.
Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: I. —
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4195b6321fbbbd4e7b366e5523e4c093b9e312a93a0b98d1bb5f4fb475c69b43. 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/FRZ208301601.
Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57d4dcb90114e07a5542b2c2bcc7092afd2f6ed620022ee937dd5421bc4151a4. 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/FRZ208301603.
Bach: Magnificat, BWV 243: I. Chorus. "Magnificat anima mea Dominum"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782c0e83029158b560c80653e2ae89cce6caaffa45c09505801a7e292fb2fcc2. 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/FRZ209801801.
Bach, JS: Brandenburg Concerto No. 3 in G Major, BWV 1048: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f662fa4ae76d6353b5fcd5c8e3256e3c389af963a07d1ba373341b7dad7976d. 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/FRZ208301602.
Bach: Magnificat, BWV 243: IX. Aria. "Esurientes implevit bonis"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02a808e7308061869b4144db87862928055c9725a8beee3c5d777f4877942d0. 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/FRZ209801809.
Bach, JS: Weihnachtsoratorium, BWV 248, Pt. 1: No. 1, Chor. "Jauchzet, frohlocket, auf, preiset die Tage"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25c4de22045150c01f1fb43b28f0a22d082a26c919fae1b12115a8601d0d5c3. 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/FRZ209616701.
Bach, JS: Weihnachtsoratorium, BWV 248, Pt. 1: No. 4, Aria. "Bereite dich, Zion, mit zärtlichen Trieben"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafff79fd0f3e33bb9905adbb02acfc0ede1dd7f53cb16bb00f941eebfd2468ad. 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/FRZ209616704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8678cd396ed0ab5503f07e9b278fdaa695999905a42212ac29f1a4b75a11585d. 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/FRZ209616710.
Brandenburg Concerto No. 3 in G Major, BWV 1048: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4195b6321fbbbd4e7b366e5523e4c093b9e312a93a0b98d1bb5f4fb475c69b43. 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/FRZ208301601.
Vivaldi: The Four Seasons, Violin Concerto in G Minor, Op. 8 No. 2, RV 315 "Summer": III. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5996065b1c909a5f57b73fc6c1a5b000f2fe52fc193c704ce7ca9a10a9d9a8. 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/FRZ209901510.
Buxtehude: Membra Jesu nostri, BuxWV 75: II. Ad genua. "Ad ubera portabimini"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4a8580ace0395d57cc29d5cf6dd5955f313774379640240d504eb05f6e18384. 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/FRZ208704402.