thumb | right | alt=Alois Lipburger | Alois Lipburger Alois (Latinized Aloysius) is an Old Occitan form of the name Louis. Modern variants include Aloïs (French), Aloys (German), Alois (Czech), Aloj
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 0x4f0b6fe560ffc7306719c5044abeb84a62ba6e5e1f924b2443c1e401143b3725. 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/fa80b148-f9d1-48be-bf4e-fc6ab5d93c97.json and https://artists.proofprofile.net/proofs/artist/fa80b148-f9d1-48be-bf4e-fc6ab5d93c97.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 0x34022fb2cdcad4d8b5935f1dd7708191f4d36c092c889ef9565df89838c84293. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFP2331635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9513de1a87d782a88bc509fd02a329aafe0c8651abf32779ad108a1de3ad76e1. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/US7VG2592026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300ae0aa9a77a21c09cf80720457d657adaf7bcbaa3641dae4ed4d84aa982452. 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/QZGLM2516458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d23b0973e31b2d6849689dcfd48d00268a0226bbb0840b1e1d06b64dafe5a76. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/QZNJX2537829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b6536b84ce98567b3b7c887906cee4fbdb076642d71fb7c5d1953e09bacac05. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZNJZ2545801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e1cb8e673350ab812f4f746552e8ad9df40d4828acf2af68a7430288185b84. 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/QZMZ92414681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8008d1c31c75ba50f58084a929685c696427e020d76d01f102431f6bd2603121. 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/QZVEM2399486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39db82d726d9d4f068037fd272896a80e4be09315a8b83432986a596a65dc24. 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/QZPEW2438126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d6458af01a6e46be99aa83152521d71bcff45de313dae6db43657fd13d240c. 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/QZW9K2432601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aa1917c05fda451c17bc4711ae31d5af68538655980a6ab93cf18d6960b5426. 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/QZGLS2552038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d340ec47b16f4e749751ac60f83b6de2843912f4c727cf8deb270b40821b35e. 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/QZGLS2552039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108227d353f1c1748046a1ebc09769ba7fce86c28a7b263065c5e4289de9e05b. 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/QZGLS2552040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd858101b20c88d62d9d32f381f6e87f6aef821194535a175172055bb8dc930. 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/QZGLS2552041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0914511f9785a0c1f6b84ed9818da131d005b11cded6f37a6e651ec58007cac. 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/QZGLS2552042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9567e2bb9c7f4a5e22cb0e02231b9425fa0f6ffc12c011b0b551bb95e2857dbe. 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/QZGLS2552043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58295023f97e086fcb1d85b17c9fd9cb74f2bca5dda41d3497cbd1151cbe02d. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZPEW2457260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac09e64ec26b1332cf0dd9024734fc603c49ef936c64d11faa43a1d26a48341. 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/QZPEW2457262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17de4bbfa3f84867dfdc18c6274c6a5da91f181bbd81bb46d0a2d09433e867c2. 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/QZPEW2400608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8008d1c31c75ba50f58084a929685c696427e020d76d01f102431f6bd2603121. 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/QZVEM2399486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5b47a5b8adf7856d7e9328ae9e0e5dec66a81d00510f01c02f6e91cf3b9904. 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/QZPEW2457269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5fa9bc1dacb42f8c0482e9bd855dac4a1f4dc6c5096d0ddeec3de10f38d23e. 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/QZPEW2457271.