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 0xb78740433d60b8f91d68275d4d4a6621e82aaaeca3a4b449e9c7c3d307f848fc. 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/2c7b16b9-2acc-44f2-93de-7a1b1b753068.json and https://artists.proofprofile.net/proofs/artist/2c7b16b9-2acc-44f2-93de-7a1b1b753068.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dream Lantern x Nandemonaiya (from "Kimi No Na Wa")
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 0x1caec8ce1082bcc4fd53fd28516a36273181e28e9e381b34b27f476a8b02a14f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2112688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x318f4453d573ffa2db7298c364a422f729be4dd96afd33b3f88ff478a1a8a87e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZGWX2112705.
Rittai Kidou - Attack on Titan (Lofi Remix)
Rittai Kidou - Attack on Titan - Lofi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f8cd438cf60fa30c1e6197c6de00b448db41122259b2b042380a18505d61ee. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:23:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2112687.
Warhammer Titan Theme (From "Attack on Titan")
You See Big Girl - Attack on Titan (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f57f6cc83ac83bdcecaf4b1d3c0f6b6f91da8a03dc44c0bfd83bb370356d07. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2160744.
Rod Reiss - Attack on Titan (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dac6d91303555fe30780545da10b9e83081149e79fd225576c1027a3df69279. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZGWX2182858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688c11cced8767734e0eef57c3fc19dee96691d90c106d6aadabd14f79a3557d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2182859.
Warhammer Titan - Attack on Titan (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55c090fef1fb4ce0f062c30997614d03ff410ef2a8d7400242030c124b4292b. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:23:46Z), 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/QZGWX2182862.
Kataware Doki - Kimi No Na Wa - Lofi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561def901ee0175f887982d752d84686c200ce604a1ad590ed0ffe557e742dea. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZGWX2245526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d085314fe3a6ad7d6bf7d7bfac9516ba454603691a74527600423ce0960c2c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGWX2245521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x024bc77a5dddeecd5537258cfa78fc2b275cdd9a9b3e91d95109ab7c681f1b8a. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZGWX2245522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab1f09ecc48c584945909ddc32b51dedec8569ab9e4f9c435ffa29cb02063fd. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGWX2245524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdae7cae56b43cc717715a10fd808fae2d1b6a5a103fe58eb04aa42b4f47d4d3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:23:06Z), 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/QZGWX2071719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb81d54457f0e65dc4f329235292fc4b0de982f6424b12a6e4bf7930eb040ae3b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZS672153744.
Grand Escape - From "Weathering with You"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6790f33a497c2b952b661a54634b94555b7c28ee782fd6d8546bee9f0ca41dc. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/QM3DF2155915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a4e642d5de9d8c6de9d5569211b0a1cbb48bcef96766952d79d829cc900004. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QM3DF2155913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0777eb2e78e3c29e8ee84cc80aa67960f02853cf26f027063555b28909a3fba. 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/QM3DF2155916.
So Ist Es Immer - Attack on Titan (Lofi Remix)
Rengoku's Theme - Demon Slayer (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23751156c926e8a502c2def0cd005254828b4a7c215e3d87168feb9aa8d26fe2. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:17:06Z), 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/QZPJ32140781.
Fireworks Festival - Weathering with You (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcba25974036d6dd0a275211dd9ff04f1eaf260d866d1a48296bc3fe6c62db6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32140783.
Barricades - Attack on Titan (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d9dacf8e323600a0e3ff7e82fe9e51991483efd57706810db0a2bc33bcb93b9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZPJ32140786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e9d220d66537458177422f522c4f4099e754d9cffbe7d320d7fef2ac89e617f. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZPJ32140787.
Mitsuha's Theme - Kimi No Na Wa (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de53ec866f617267fd392e788ddad3de4e89bcc67a720f07b464cb26019ba7f. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USANG2216395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d24d82c82e30e7a0003b02b239ccbaccc308f109c05c2f723fa2399c4243ca. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US3DF2296990.
Chainsaw Blood - Chainsaw Man (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a5b434cb473d04a8f5ee2b2361e443f0c4945f0838a64f264b858f8ab300129. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2217226.
Suzume - Suzume No Tojimari (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b9aafc7aba49f6fbbafb56b91b45ff4d4e98448cd178af0850adb4f2b3450a. 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/USANG2216396.
Counterattack Mankind - Attack on Titan (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddc836165e4353b26e554fce7c938d23dea9b2946a41f1b0c95465e95f3d5775. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USANG2216397.
A Rainy Morning - Garden of Words (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ae834ffb41acba3756c919c824bdb3293d458fc89ff41554b3a7b640239a89b. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USANG2216398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7b5bece6f3609a9d8e93f9fb0c206c3c38d4cee7c338f941455d6822f085747. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2296991.
Swordland but it's Lofi (Sword Art Online)
Bauklotze - Attack on Titan (Lofi Remix)
Kizuna No Kiseki - Demon Slayer (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ee7d910547eb8a352de8353a3702cd473ab106a5455a34db4509fc843aa407. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM3DF2251838.
Ao No Sumika - Jujutsu Kaisen (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ca3793a7203e8374ed9cdeb301d7bec24d859ff5bf1733400e2cd42a416c1a. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QM3DF2254478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a28b710688d2e3ec87ad98aa5a51fa67a5abe280ac1cb154ee15e4360ef64e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QM3DF2206062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6ee7d910547eb8a352de8353a3702cd473ab106a5455a34db4509fc843aa407. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-19T22:38:06Z), 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/QM3DF2251838.
More than Words - Jujutsu Kaisen (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2261b92ddbee676bb98685fe6e4e72100526c22857f6da740f87fc92afa76544. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMANG2217697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ca3793a7203e8374ed9cdeb301d7bec24d859ff5bf1733400e2cd42a416c1a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM3DF2254478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78429596409b3649128d51affb6be652d944aa858bb1af9ddc0d090bff3d5f79. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:23:18Z), 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/USANG2283813.
attack till we are ashes - Attack on Titan (Lofi Remix)
Licht und Schatten - Tokyo Ghoul (Lofi Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a7c35c0bb3a43962662d77b64c5b98e41ec77e7e66c1ba6ffc11ffce0db4c83. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:02:31Z), 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/US3DF2416602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x449b2efc3146d9ff47584f071b9fff96c608fda84feaa5618390a27434875f48. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/US3DF2509730.
Reawaker (from "Solo Leveling") - Lofi Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe57a6f4fad43272beebfe55b235ceeed666835bb1004e4e186a3576435d8d2. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2522493.