Wilhelm "Willy" Burmann (April 3, 1939 – March 30, 2020) was a German dancer, ballet master, and teacher. Early life Burmann was born on April 3, 1939, in Oberhausen, North Rhine-Westphalia, German
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 0x2ff0868ae669ec67129a2329cd6ae415657807e7ac49f3e22f2157c5bc14a1c2. Chain 2 (Bitcoin): anchored in block 953724 (2026-06-15T01:43:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d15b10d-9ebf-44e3-8d5b-e3c1d87575d0.json and https://artists.proofprofile.net/proofs/artist/8d15b10d-9ebf-44e3-8d5b-e3c1d87575d0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
From 5th to 5th, Vol. 1 (Ballet Class Music) [Barre Exercises]
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 0x6de29f89c69a640ae871d53aeef9f79c29158abfe8ca4b7dc4b9b59f00ba5057. 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/USDHM1413234.
Facing the Barre (Turn In and Out / Tendus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4e2ddede23d7e38e487e16e88fd9f2d386456e9648626b0bee31bc4bc8ff89. 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/USDHM1413235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369648fd9b0db825ea5ba446741e4cdbdfa4fe3a2e73f36510382e9985a0ae7e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USDHM1413237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17aca64a403142c97a5f40c9052cb7197231a1ecfc78a527a784ba65c2867016. 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/USDHM1413239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3ba53ba12221f5cf3ad489379fbbcfcea29cf8844e4667a6f0a72b449c3cb0a. 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/USDHM1413241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02837214382c6f2f038ce2210dd2d140e2e1882e0cb0fddb70403c7681876e3. 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/USDHM1413244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838566bed99d262ee23477c4ae5bd13226dfd49081ffe06d4a84b7758cc1846b. 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/USDHM1413250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe61b801de2d33b6f3064f030dd0976cecc8d61b53eed26a152db15126acbf7bb. 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/USDHM1413251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda623ae7bd2f6365635b10a19cf8ef9521994c905bcb795d410c78c8594d98aa. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USDHM1413236.
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 0x8f4bbdadecdf3492ff12f683b5b30b3e90547ed4db66a971d440d4334cbdd09f. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USDHM1413238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514d23512fa13538611f30c095c3d9b6e2f8ecbede7285647f0356abfd91510b. 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/USDHM1413240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35e7e2e4f443a4821235ef5dba232013119a548f1fa788bf9357b8c022fa06cb. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USDHM1413242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe282c0ff6d734a3f1e74ba9093cd13b884a899150ddcae33da3457b49b948bbe. 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/USDHM1413243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c0fc34116478363ab6ad800c78eb4de2f8410e25c3c6b8ef4c73bb66f3549d. 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/USDHM1413245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec76f7d78f4b640076aad826cb79324a92ae69cda3351b89861080cb03ca249. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/USDHM1413246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x369581731889b89f906cd2c9a73e26d1528e09203229ea9d28c2f317b9281c35. 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/USDHM1413247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f885ca95330b8c900dd12b8d61a15655a24a83c1a99132fbf54c491c401e8e. 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/USDHM1413248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x919d1ed6830bd0ee1be7673aada7a1bd684664596067927bf552bc8ed606191b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/USDHM1413252.
Ciao, Amore! (Ballet Class Music) Vol. 2 - Center Exercises
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f80516b05abedd3343abed822c0ef8c5e012fbfba6bfc8a531700f8bb52955b. 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/USDHM1400971.