thumb|upright=1.3|Stockhausen in the Electronic Music Studio of the WDR, 1994 Karlheinz Stockhausen (; 22 August 1928 – 5 December 2007) was a German composer, widely acknowledged by critics as one of
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 0x5f39f5c60d06acf2e3eb07bb50a9ea9b7dea79054f6a7735ea4e5a56ae2fbcb6. 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/e67f9bc4-a72e-48d8-a3d5-2636f28434e9.json and https://artists.proofprofile.net/proofs/artist/e67f9bc4-a72e-48d8-a3d5-2636f28434e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bdb1da607540ca1b31084ef0f64499f56f9c0030fc12128272e1619b5886feb. 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/FRU622051802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44005556b1e4b4526593827acf38ad4ddd94004235568ccf0bc086a77b7196fa. 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/FRU622051803.
Stockhausen: Zodiac. 12 Melodies of the Star Signs
Darmstadt Aural Documents, Box 1 - Composers-Conductors
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe23b06ce01267bcd5db7fe3cdeff7208a1fb83cff473434852e3e97a9daaac0c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKA682100000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e58cc249da8d95440032fd09be55a65094f6021f00df4c24323fbccd53b678. 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/UKA682100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b485114f960a074649a5b5c7994645697bf89fc8d60dddae4b4ec12b4b6a5a. 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/UKA682100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06354a4e87fd892929f71073efc1840a6762826a504548397c44fb38478e9644. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/UKA682100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x304ac860a6fa085da8b0e0d4ce39fb7eb4455236fe579ef4de04992150d8ed7a. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T20:57:12Z), 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/UKA682100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ca220e6de35de6197a0672a2566bcd51bff35fe64067140246a8ab16466145. 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/UKA682100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f06d50e82ee64b728da9d77f3e1d042534ea877673524c819745945c1cc410f. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/UKA682100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db66daace9ada2133c3351befe6f65303851041a829f1593fc9189afbd156b7. 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/UKA682100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33c0953dfdffa0cf0e546959935ec20fa0e4316da5a793f590b1c79e5badc958. 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/UKA682100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7917529f918754d1789d2cc4814c79f535f74a2316a3ea6cf034ea73ca8c1738. 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/UKA682100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4948c6a6fd8302b74d61e354e06140dccffecb782d28f5941e8f11ba8ec2f971. 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/UKA682100022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34be588674b40c64c236e13008f7272a6115eb8a8cf46daa858a2980ee016968. 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/UKA682100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead007ea6283c1d30b9df9bdb19525afe0c0e793754bcb3254b3d73c91eb7e44. 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/UKA682100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67415fa760dd26805fc76584ba3ade7e465a5bd516dd9a7f5a5cb7d7e9aee550. 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/UKA682100040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbad3ad1557a66d73dfa8fde6f12c39f8e93a13fb963472335ff128da4f2ce945. 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/UKA682100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75dafe6a729db41d50345b4eee1ccff63d556959a71c807be0f1bbafbec3a81b. 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/UKA682100043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96f1be28ac35cc552653fa9dc0d464ee301cc80bb2ac9b43cd0873e8d8e176d. 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/UKA682100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8449a8382f5d91ca450b08fd836eeddebd3510949dab89e740b5413471496735. 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/SE5DH2300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c401a4156e30805feae558b50ee154cc2d14c5f7b24d16cfb05f056f863444b. 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/SE5DH2300305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x221f40ef32445b099d2fbbcd656a87789d0d8d7cf6338ec02266bf52b94d3479. 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/USCGJ2299887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebb8b10b168dd598b8ad5650dde138dd2db200ac7ba1c190de44532eef2b5a53. 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/USCGJ2299888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb7f6d0009818cff1f0cc3aa8eb33a228ac82d9ed3e4312baf26f20173d7bf4d. 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/USCGJ2299891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22052415e47f237104babd61ecbda4bf971ec97ff91d8ee253ac13d25c44be08. 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/USCGJ2299894.
Stockhausen: Spiral for Saxophone and Shortwave Radio Receiver
Spiral for Saxophone and Shortwave Radio Receiver: I. For Soprano Saxophone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdef124a55f5d2a53dd2700fe63abf894f061d03068255abd6656a396c6482df. 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/CH6542207049.
Stockhausen: Tierkreis for Saxophone and Electronics
Historic First Recordings of The Klavierstücke I-VIII & XI
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc3e2e6a8ccaf546ae2cd5277812e723c7982f398ea1469d65796b9a1df7271. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITK601801902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d983a638dfa1ce9e612a8a97aa51d29e829c44b58c73a4628995f9b9fbb3bcc. 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/ITK601801904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27b7f47db74093bb79cb382909490f31ad2c6bc84f83938f9a2dbb1b7540aac1. 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/ITK601801905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96090246c8c9d5b675c4687f0e1cb2d950af709d472121ff15e398671643be66. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ITK601801906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90df0e81fbc002b3bc7290d34a9e384ee0e660bb54fd8db925279ba31673f891. 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/ITK601801911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x220e900bb9e402c046675ec9c67b25797d99e879eac66a0595da20dd65bc3452. 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/ITK601801912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ffb6867adc77057cce659cc7ae8aa2119704e14ff7b1a44237713c2a23a1a44. 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/ITK601801914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201a3bca4f4cdbb318286e84e429fdbdd2f584ca1ddc93cc01beaca67df4d5fa. 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/ITK601801918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef28febd4e105f24f0592bc4e5957584e91c0c6b729e6ef7da9a1013fd891d5. 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/ITK601801922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10aac867b97841f58f1d7cc6929b1b345ece0299e686f75a5cbfada1396b36b7. 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/ITK601801926.
Karlheinz Stockhausen: Klavierstücke | Piano Pieces I-XI
Karlheinz Stockhausen: Tierkreis (Arr. for Guitar)
Stockhausen: The Complete Early Percussion Works
Karlheinz Stockhausen: Amour / Der kleine Harlekin / Wochenkreis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95ee559e5ae661a9e8c589153878ea340b53e651909a8825e88f8559cbc6a4a. 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/DEC441308294.
Eötvös conducts Stockhausen - Gruppen, Punkte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2713529986fc6092fc2cda5b236595452804eb69c22395cf7f929eb7bd1521a1. 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/HUA150611701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db80aa70020bb6390eabea28ef0372a446e88ec2295c9f129f236291b61db22. 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/HUA150611702.
Stockhausen: Zyklus - Klavierstücke V and IX - Kontakte
Klavierstück V, Work No. 4: Klavierstuck V, Work No. 4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64408cad221891bc7392011c856185b6b68c88b67645d2b228d04bd4e14441c4. 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/SEAGA0004020.
Stockhausen: Zyklus - Klavierstucke V and IX - Kontakte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59f48c1d02c9e2ad5b8df5117beb8561f4a7100e1917235a13febb046b5dc301. 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/SEAGA0004010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64408cad221891bc7392011c856185b6b68c88b67645d2b228d04bd4e14441c4. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/SEAGA0004020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fceb89263c22582ef369d2689d3f17129893ad04559b25a3211f0296d274096. 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/SEAGA0004030.
Kontakte (version for electronic sounds, piano and percussion), Work No. 12 1/2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1822ba06b5f8d590decb04c74bfa207b908845e229ac568c23bbb38df92297d9. 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/SEAGA0004040.
Markus Stockhausen Plays Karlheinz Stockhausen
Stockhausen: Zyklus - Refrain - Kontakte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e47e9d0b87f2d6adfccfb4f7e68331c2ca8c099cf8d5509a34c0a20ca67e30. 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/US87H8810433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3a7f084987d7d8ee3d29ba80b4c43c65cf1204b52b8f38fc1dfaa033bf59f5e. 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/US87H8810434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23149a7ee580425a085815a853ccb8b4d24ebd7f92e2ad507fda6867c5d3c30b. 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/US87H8810435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799012434367829efadcf493f7c6395ca3814a2fedb8168b1325da551d38074b. 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/US87H8810437.
Stockhausen: Gesang der Jünglinge & Kontakte (Collection trésors, stéréo version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x753ae57c7b9b47bd0121454ad5461d2f547845d1a8f5d97db32c0b39f57a2832. 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/FRS181237074.
Stockhausen: In Freundschaft for Curved Soprano Saxophone
Stockhausen: Tierkreis, 12 Melodies of The Star Signs, for Vibraphone, Glockenspiel, Crotale and Music Bboxes (Realization by Sergio Armaroli)