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 0xc8d22b345dca50f564912060caedf38028ef87ef04eee02f8ed0dd40712c6554. 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/6f2ce92c-a407-4061-bbdc-f89ad63b6679.json and https://artists.proofprofile.net/proofs/artist/6f2ce92c-a407-4061-bbdc-f89ad63b6679.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
City Square (from "Animal Crossing City Folk") [Lofi Beat]
Sonata (From "Animal Crossing City Folk") [Lofi Beat]
Stale Cupcakes (from "Animal Crossing City Folk") [Lofi Beat]
Girls Like You (From "Bridgerton") [Lofi Beat]
Le Festin (From "Ratatouille") [Lofi Beat]
Victory Celebration (From "Star Wars Episode VI The Return of the Jedi") [Lofi]
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 0xd54954eada44d5b538e1feff1c1e80a84c1d1cac2def40570be5044217b2abad. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2126810 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2ba5bc5331b53cd015ddf947468e3f0f2ce59c2189ad4a8e4e09858cabbefd1. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5FN2112918 — a six-check JSON result.
Rakuen (opening from "Dr. Stone") [Lofi] [Instrumental]
Shock (Ending From "Attack on Titan Season 4") [Lofi] [Instrumental]
Great Fairy Fountain (From "The Legend of Zelda Ocarina of Time") [Lofi]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e27e559643d23e92a77a6f4af59b1d001caa97abef2fadfd7c4b5f23512e38b. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2120415 — a six-check JSON result.
Lead the Way (From "Raya and the Last Dragon") [Lofi Beat]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80abf809358b7e443606f2dd4cf937b1909af772b28f684f385fd6a4407a43c9. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USLZJ2163477 — a six-check JSON result.
Samidare / Early Summer Rain (From "Naruto Shippuden") [Lofi Beat]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd63cf97ce0cb88ce12d5b61ca476eedf83a598685af2eeeb8a90d73703658389. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2234618 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f259f0fa3332251b64d47c0511d295643262aa33710adcd993e00cf3ba9d37. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32110380 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53433f04a68a6421e1133965fee4cee91e8f44bdd8308cef047beb3d6225d31e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32110381 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463d8f7bb0b265a2ec643b2e939fcad87bbed3e0d9a8904db638b8eccdaefa69. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32110382 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a89579aaf3919857fd89de62d6dbb9f13478c789d0b3a95bcf8f6d3194b4db6. Chain 2 (Bitcoin): anchored in block 958816 (2026-07-20T03:51:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32110384 — a six-check JSON result.
Have Yourself A Merry Little Christmas (Lofi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f1946edf7957371e01744d9a5541ed36b4425932a4e926adc70dca5c7e65c84. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32173431 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e137a7be5e5f5b1e6a8698c86dcca399edf992b3ce593157bd07f1b35931e58. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32174180 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab646df10ec0a4d94301de60caf67d6675988158dce413ca2d7da1b5493cbc8. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32174181 — a six-check JSON result.
Imperial March (from "Star Wars") [Darth Vader Lofi Beat]
Imperial March (from "Star Wars") - Darth Vader Lofi Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f97c6c9fb070359d30fe2b81eaa3e9d0033803b67d203c10709dccda44955e2. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32186434 — a six-check JSON result.
Unravel (from "Tokyo Ghoul") [Lofi Beat]
Konoha Peace (from "Naruto") [Lofi Beat]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4990bc989987cb654e3c2c835e57522e3753739e1a31558ade27aad6dc26cd. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2122917 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b79ff1be5184e1e99c45b9f2ccbe859f53d7293124a4062835be0164f0ac724. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2234617 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3629a3be0791865efc92d7f8b37c964ab511479fab843ac17d44967e8942614. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32113272 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0412cb29c4f00e1325adc6cf5e4a38046716b4e0aa24ef14af20562367e93b25. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32186435 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bde5cd9f163c7d989d4435e5752bdbeb3e33df9fb54ab05472a679be53f9763. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUMEV2287935 — a six-check JSON result.
Your Eyes Shine Like Stars - Sped Up Lofi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa840bfcdde0c0b00398cdd2bb7935c6af16e4bbdd4238c99ce2dedd9508b925a. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32219956 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a8656f21bed2b97b9689eac8f1a8d8a92128746f33623cb058f3e173545807. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32219966 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96bb1e78830249e5ebb0ae23befdac7d29921ba164a9bc5f145f01a698a4a25. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32220064 — a six-check JSON result.
a temple in a mountain forest - slowed and reverb
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64036651429c54782ad6bca5d75343e959f2de01e609659ad948ca738627b1c5. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32220065 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80bd7ab99355d1cd6dfc6aa81d2370906942bad8d2a3cbf3e2a20718cab0ddf9. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32220068 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7e7aefe4e239741ee9ee265a4395331d8fd6e23df495fbec530510321ddfa0. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32220075 — a six-check JSON result.
Shock (Ending From "Attack on Titan Season 4") [Lofi] - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9ee97aa9c4aed7d3cf6b794c7ff54b848c7cd369baea9c332848320e3e2c987. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2160768 — a six-check JSON result.
Samidare / Early Summer Rain (From "Naruto Shippuden") - Lofi Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x476b11fdb7dd29d37efa2095e2599a454efcddb16ff90833b2619df728c13941. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2220905 — a six-check JSON result.
Rakuen (opening from "Dr. Stone") [Lofi] - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1d3d142a1481f861d4fc8a181fb2f497c1a9fd178d658cd5ab108e413fc9056. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2160769 — a six-check JSON result.
Konoha Peace (from "Naruto") - Lofi Beat
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830d4cd25bb18d81856b6e281892850e1f3c5248e13ebe23c688f43119c98189. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32186416 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65299a05768d00aa59486adb79c65ed280c1043e3e9c5fb4897dcd90b6f4a156. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2112405 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11dd837b20d83a86d7a00f269592d3f66a52560415bc9d20b10720c7aa4c1ba4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUGBT2347970 — a six-check JSON result.
Mahito and Himi (from The Boy and the Heron) [lofi version]