William is a masculine given name of Germanic origin. It became popular in England after the Norman conquest in 1066,All Things William, "Meaning & Origin of the Name" and remained so throughout the M
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 0xf648205d0d001feabb6d2d5fe3c37fe773919e3859396d5c7491590d16dbb1e7. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1554111-f175-4755-8b60-c27295c5b78c.json and https://artists.proofprofile.net/proofs/artist/a1554111-f175-4755-8b60-c27295c5b78c.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 0x6e8587e7cc27dec03a9f4484b2281bbd5039a28d2e16148d9bddc16dff2d9f0c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIBAR2200096.
Kitara Vaasa (feat. william & Victor Nordis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8df2fee7535ecf5b4b72410a32043e0d97ea9cd04064733a544db7fff3b492. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIBAR2100314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf713584d0cfc759b0b51a3a1a1f3b8a23f2690b7d96014537fa53746f4115242. 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/FIBAR2100181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5c58d7a6d4566a361df8b6773b877badd4e7590eab48f59bc37174031ddca8. 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/FIBAR2100185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51d29a34323e9f4936b51ad11a2b47d1e617e659129f429c996d273bfd61358b. 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/FIBAR2300552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b18a72a10933cb5260f5db8365909deb2668ee4c775186b14d3f944559524b7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/FIBAR2200449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03c491039c778387cdc34768a41052cf74565a050dcdb71bc17c09800569f33. 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/FIWMA2300562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb127230722eeb30c0fe6e636e1ab41c4e63a259fa1b1a4b6a4265801a133a411. 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/SE6HN2320696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cd4046b0c633cd607d7e6ae8fc1d18026a345f54b85ea27daa5ed7dafb1933. 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/FIBAR2300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d61efea7bdb48c63754384d6f5a1fcb37a8bcd6331a7a520c9a5d1c01649b38. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIBAR2200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8cd4046b0c633cd607d7e6ae8fc1d18026a345f54b85ea27daa5ed7dafb1933. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FIBAR2300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d61efea7bdb48c63754384d6f5a1fcb37a8bcd6331a7a520c9a5d1c01649b38. 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/FIBAR2200115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabda1fbb922b881844759a1cf1df79ae52fef584c57bee2023eb7aced1321325. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FIK3E2300060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef162452de423d899e0ac43809f0878a66f39f446064869c90797b5a3a82910. 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/FIBAR2100335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec109a7559321ac4cfaeecf47a5c8cd762c9be2092d7783680b1a0b237b1f38d. 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/FIBAR2300547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cceaa2fc7699662f61662f534c2ada16a8a55effc39bf109546aa6bd3c7caa1. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FIBAR2300548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671baa2658690673a3ffdc71c49eaaac83ff1a6118cb71e557cb6488e443bf44. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FIBAR2300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b1c34b7f33f96fdf82a006c6e2fa58dcd80df20e8774b1cf7236d934cf4a826. 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/FIBAR2300549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df7372974ce68890d6c2198a86af5790dd93efab675f0c13461afb424f2237d. 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/FIBAR2300367.