Walther () is a masculine given name and a surname. It is a German form of Walter, which is derived from the Old High German Walthari, containing the elements wald -"power", "brightness" or "forest" a
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 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 0x9ece146c5fba48136362b56ef6fdbea117df2ee891702eb301349131147f61b0. 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/5a5fcd31-910e-4730-87d2-6739b60e3ce0.json and https://artists.proofprofile.net/proofs/artist/5a5fcd31-910e-4730-87d2-6739b60e3ce0.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 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 0x154bed5640e8ef49ed1e45184cee10e4e3d57a2168ca1997e4eb6b1a674b6247. 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/DKAZ72372901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6bca07f15dcbddccd2ac95873b469eb58365dd5e0d7a27d4275fa6c9b9c5123. 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/DKAZ72473001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfefde433fe76302f47685399c4e4d7af8e709722a512a674f83ee36e7b0d922c. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/DKAZ72593101.
This Dance - Kiko Navarro Coma Club Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ee91d797a435a0d56b7c963908897d35768104d46c0bdbac8437a6fd256991. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/DKAZ72593601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1877bcf647c5773db5764d0063927756b3cc657647298b698f264d4c6376a72e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/DKAZ72533903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb63ccc54c3199c0e2d62b7c52c3bccd35b6c00e65cd2f3a118dd4cfaddd0f96a. 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/DKAZ72328401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a1120c722480063eb7311741420b041a08f6c23990a15cc77bdf9ac4150346c. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/DKAZ72428012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0771683df65ac00977e0d0f6ae7a9238f7cde90146d66b5ead693a9676b4e8. 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/DKAZ72328703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366fb5cc43f63f6ba5abe1220ea6e1263a33b3e4c004be95e428b92c5160c9fa. 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/DKAZ72329807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6a8133b21b8ca6c36fc628c6b74698de2b067c6aa97d522e1f3044480cce19. 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/DKAZ72476501.
Melancolía - WALTHER & OliO Extended Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ed6c20930a38fd9d338753f610641d225bb14256805a2350e6d9436b4d314a. 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/DKAZ72120811.
Music for Dreams 20 Years: The Sunset Sessions Vol. 10 (Pt. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x582e699131197db6587c3d325ca43ece1532fae93891fcd411a65e9fce41f1a8. 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/DKAZ72225701.