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 0x11305c0a113183142b018b786fbc5ecf7fd8aa6272e3015f1d806c5f0ace1bfb. 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/9b24f881-0cdf-4728-a30b-27f8a0ca17b4.json and https://artists.proofprofile.net/proofs/artist/9b24f881-0cdf-4728-a30b-27f8a0ca17b4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lietuvos Viduryje (feat. Furytto & OG Version)
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 0xbecbd0b5f92b78b52346d6aa836705158782ecaebfee13d2d22c3a357cf862b5. 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/QZES92036847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16385c44e82bf8f80879208a72b191bf73f546267bc56d3d83c808d29a72a697. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/LTUM72300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69663a87cf0df9099f8ff23a0e5ebf105ecf43a820ad5be6458dde712ef34c0e. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/LTUM72300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5432a94684bc43bca1c49fc4c06de5b82f80ac237e45fc5dc096c1fe1a58bf. 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/LTUM72400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b1bbbc1e459b6f95e24da42792f94e6670c7dec1c3f46ad2dff285a49226a5. 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/LTUM72400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1758c14eefff85f7e4866348332c6715e7bdd9c9e8d7c799d7986e777f293bc. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/LTUM72400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd92e19517d846f64e96c0a9cfea73970a66536329fc214011db5d8d196a761ad. 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/FIUM72200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85eb2dbaf00a80084c11cb70b4faa5e5ba4f641daf58bbf507e8411954615bb8. 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/FIUM72200259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b1bbbc1e459b6f95e24da42792f94e6670c7dec1c3f46ad2dff285a49226a5. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/LTUM72400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc2f9440c2e6c63a09f1d1750eb97a2e7cfd7924002ae624f834aac09ccd664. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/LTUM72400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a0debd20a65ee0af04ba370dbf2acdcd4d88532301657d967f82e5cd331e1c. 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/FIUM72200346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c31588c98816df38d7e150aeb9142e83c9b048f380241b867a6688aa79e9c7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/LTUM72400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16385c44e82bf8f80879208a72b191bf73f546267bc56d3d83c808d29a72a697. 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/LTUM72300040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5432a94684bc43bca1c49fc4c06de5b82f80ac237e45fc5dc096c1fe1a58bf. 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/LTUM72400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815e944db5115902b4cc90c3b05721d59147ddbea71f9a9f016f5d768b7f13b1. 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/FIUM72200419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5a2c26756c1cb1bdba4e9aecba28057dd497a6d6f88dd4dcadb89c9d94eb09. 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/LTUM72400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad73262302e1797e15eb9d0cf0d5ee08654b5f6d8889385d6b3c16bc687ceb2a. 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/LTUM72400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea5238926f12d5506ed6a0cbafec51801e779a0c3b4c36161503da1f98a0e3f. 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/LTUM72400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cc7c0770a12ce05773ef2bb68c47b0625d691c4aae94badd7825425d751b08. 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/BGA472319733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d06c2d6aae1ff87bdf39400ac6b34de41a6a5b4c99b38bf6c9579f10300fa72. 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/LVUM72400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64ee17a9d4a05eec6881f0df2556674ddd97179ea577641468e578585f88146f. 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/LTUM72400008.