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 0xeaa13178120c13079151744d79108ac8807c1856909b30bdb599320b19d9818a. 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/57bac9a5-daf0-4e1a-b561-215cfd8bfd0c.json and https://artists.proofprofile.net/proofs/artist/57bac9a5-daf0-4e1a-b561-215cfd8bfd0c.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 0x3fae33a1016cead2706237d141bd8026c68d1a37a238ec10ccf4cd203c17fdac. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GX8LE2328108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc090253fbf6a0bf45fd27829f46abe1a4621ec9f768aa7bc65a55dd1043e38af. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/GX8LE2375710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0627075b92546b463c1b4fdfc24d6bce51a9af5fdf76d4f12ad81b63e38de510. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GX8LE2363338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd578ee4636c26d2af1e4a05428ba46447b1a8f2bb98d0fa458991dc8ac333d75. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GX8LE2364306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3f2ec5d81d88ea06e4968c601c112f0915086541164b45e5ba7888dd4aa906. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/GX8LE2327483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4d146d2b22d146e6444123cf46c8251b162140e03bd2eb5c74f506c8d1b72b. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/GX8LE2342642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc443fa824764070b378709b5571010cd2d0b54fc79b3a4d36325142f1d99d08a. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/GX8LE2390365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28046351c06b31561dfd65b546a21b2b6de301a071767df639debfe13ddcbdc. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/GX8LE2341380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec750706b3bc71ae7a89d2b7611ee635a70bb9ba46bfc55f676ed30ebf2cddcc. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/GX8LE2398119.
Sandgem Town (From "Pokemon Diamond & Pearl") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4f92ecc16decaa53b3bb701452fa859abfb0179d29092bda720882db0a9513. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZPJ32294497.
Lacunosa Town (From "Pokemon Black & White") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f64bd04c13bba252a4b53ceee4af288e2de4436532e161b5287215c4cc9a4b. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/QZPJ32294493.
Anville Town (From "Pokemon Black & White") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f716eec4f2c0c69bb482393ecfee915299ab008e7da2322dd779bcf68880814. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPJ32294490.
Relic Song (From "Pokemon Black & White") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb90ebd35bbeabf4f32b3f1b16b359677eb9c262554ea53b684417aab6ecd86. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZPJ32294495.
Subwoofer Lullaby (From "Minecraft") [Lofi Version]
Subwoofer Lullaby (From "Minecraft") - Lofi Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f12f7d21fb25a5fb5139800bd97639480b371efbcbece282a3136998b77d86b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZFYZ2350077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c97365be6011977a9eefc39b8fce00fb8b76c2f206d7ab301de9fc0bfaf68b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/GX5MX2393160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0caef9d18cdbd1d524e10de5650c6f4118a99761b7d0363bfe9345dfbdc2c834. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GX5MX2384925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe772ce193004ac13952c06855ab6195b8e290bc33cd389de93f3ff6b925cca6e. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/GX5MX2326288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03909fff8ec99489a9ddccfdd92e2aa8b77f6f9d4090794edc24d30243aa05b8. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GX5MX2315199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x152bbeae400f013eb3e0eaf82abf55557e825badd6fa41ddaf6a6c979ccf5247. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GX5MX2302121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94b67fa415207be1c2cab2d5d9d1021def3532521828ca49f4bc957b94d6db1. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GX5MX2353704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0864836f149075d4e41f25f5522c7bf9e3547c039c193691934757e7357b83b4. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GX5MX2391513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a168ab5024287e86fac00e900ee9e5b097e672acf6d8e0c6e8bfdf686fd936. 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/QZFZ32317575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371b4affe7fe60a6e1cc3a48a8463fe0bdef5b391efabbe3b59984bca8158980. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/GXBDS2337840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6250118c5c29b853d8472afe40cd96009a7d706ed1dc05dba121ec17ce56c991. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/GXBDS2358849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa662302d396dea21a78dd27082e4782740eb7870138a959b0a72e45565d83d0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GXBDS2348963.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a1ba0ae672d00f124f0321dea3380d64941fc716578b6a20ceadb5d9baafc8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GXBDS2308506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25aca6311d8e1cbe9e675b05b27b7a3be957d485894a29b70b2697d59f9d7272. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GXBDS2342740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa221b516a0d730e3146706adbb23fe71ea4da3eaddb4ef42cd1c8ab1e8813d4b. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GXBDS2361798.
Sweden (From "Minecraft") [Lofi Version]
Dance of the Moonlight Jellies (Stardew Valley Lofi)