thumb| Helge Burggrabe (born 17 June 1973) in Magstadt is a German composer, recorder player, stage designer and seminar leader. Life As a child, Burggrabe lived for several years in Burma (Myanmar
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 0x4cf8fa57d2cb7ae0fd4fee0901e1d77d4643e10e265abc6d0aa01c97cbcbf03c. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/84b136df-7d2d-4ebc-8ddf-15ad8a19d9a9.json and https://artists.proofprofile.net/proofs/artist/84b136df-7d2d-4ebc-8ddf-15ad8a19d9a9.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 0x430118aff76fac38f6656a644a8728a8da0d02edacb9ade9782e8fecf575ee71. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DES381513001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x491a326db6a5874bdf5b1b6250aec95464c9294300f92d9f7ccbfe7c0f7be67d. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:56:04Z), 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/DES381513002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42e7c913877a223a3120b7f1ce80f93229af45efc30138a91686b75f5ed94b5. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/DES381513003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba91d0795f18c500a37dfe226e42646fad49ca9eb3904c483186a573b494ff5a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381513004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4e972cf663d89bba1b9aedc46c86b345495fb841a5453c71f4e213f232f4d8. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DES381513005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc264d03d1d3f0c9a2a319c763cac0a752f116c4ff2911a86e5bd8914403659bc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381513006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabb1dbaeca3f0a97b3cca36df67cc27eb67b5738801709fa03b60dbb2bf24c4e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/DES381513007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746df91a936dbcae886adfbc45cc979bf1c7f4d755e5ef227a8944d9d8abe1fb. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DES381513010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f4031abbd0a0f885cc6cfc5c06e9e2c9a73ecd6de56faa71620e8c02922751f. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DES381513011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbebe0a640a8d336a90438de706cf7b41e395fd24238662e2b49c01315e98648. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DES381513014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b310147e9e78b2112ff697b346534d6ea5aa2e8a9c2752e9d3673392de6e49. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381513015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33dfa7d4ba3510c151451b59c203fe539e2e1a9447ded42bec6366748a04c01c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/DES381513016.
Hagios II (Songs of Praise and Meditation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b86261f453922da536667773967d81fda4598bc80e7f92acbec68f56509ba9d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/DES381806000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20e3cdcad494cf153d99375e44eabf31bdc999d8713f5ebbf48c2a2da67cf35a. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:08:42Z), 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/DES381806001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfae1a33b199739be852c095d351497ee3e0cddc8f58d840f3cedecc5fcd651. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DES381806002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6806152347871aa3b79b2f8dbb30887ed02fc979a87425f87d2e329c86d61ed4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381806003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f0e64ebcade13c343c11ac8197533b421afb47e505392b4ad9de2423fc6499. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:31:09Z), 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/DES381806004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57b421aabf00ac68d3da7fde07148323dc7e6ba24f6db672eea3ed2684203031. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381806005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661fc326792265c8d29d4563e4d479e2aeebb8eef4887e553181bbb5083b34b2. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-20T01:40:58Z), 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/DES381806006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf469204ac5a06da9bd439ada564987672120353f472147fe03cc05ba3256f499. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:06Z), 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/DES381806008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb944be7ccfc83bfdbea81f9dde487337e3ebc6efd29f6ad747f1eaf87e261ac4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381806009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc4c928c55ce357140323137965ea8ad18dc7ad5c8ae887068e8eb2908c9a25. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381806010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c70eca98fb7a4d006cd96668f9058567fc1073296aceabaad798d88740cdde1. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/DES381806012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10c7dc08823135bac358d47b22a1628d15f5cd2fcb0de5b466cdc99350400fac. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES381806014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a6d5f7e2951a1e879a60fcf7605fcafe05719142caa5c7a6daaa77dc90db8a. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DES381806016.
Helge Burggrabe: Stella maris (Blaues oratorium)