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 0x70b95ffff5b1668d3a0bfa3837d9b69b7eecef840fe4dcb893d4a3989cb9ac11. 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/3f8c82e4-7db0-47b3-81d8-195ba8158665.json and https://artists.proofprofile.net/proofs/artist/3f8c82e4-7db0-47b3-81d8-195ba8158665.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df7a82ca9f0d486ea3b930a64dfe16daf514639eba474791182cabd011ee4d9. 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/QZPJ32266015.
Merry-go-Round of Life (From "Howl`s Moving Castle")
Binaural Anime Dreams & Focus (Binaural Beats)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x184d66a01026ec8599c3d960e6ee0ecf266f15d297926d89bd63d91287b2103d. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:10:16Z), 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/QZPJ32268006.
Merry-go-round of Life (From "Howl`s Moving Castle")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf07c1c07c9123f8e6097d18f2f04fba2027502700aa45a30cb1ec3b2dac05d. 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/QZPJ32266730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf51ce0904cb89b3ad95796253ba59a38265d34511448976ad5ac5fe152fc2c. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZPJ32266731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e5f381a4df097446a4629b46174fb4d6da417d498fc3d43429a1fd4554c90d1. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T09:57:10Z), 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/QZPJ32266732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e958911fa8bf5dc40b5e18912da5a433fa80e9526765d56e242fa1a76f2705. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:09:24Z), 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/QZPJ32266733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e18ad57052a2f2c15250ee25f5047b6e8f54363da8612c1e6d1dd08e752f90c. 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/QZPJ32266734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5aace28da69a3515d7236038248b5759d8ae10f252682e42cc45eb672af3eac. Chain 2 (Bitcoin): anchored in block 957876 (2026-07-13T16:00:32Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32266735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8621e6999dee14744cab15c7563c3c5a61d21f633c452405b6c4afc08fd8a4d9. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZPJ32266736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4239b3f477c4d8cd7303b8a2e981f2c7840d745213088a6d286517c74a4bb057. 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/QZPJ32266737.
Call of Silence (From "Attack on Titan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd238f66967017f21755f92911b0689a9e2d77b745b09eef2cce6f8c2e1a30b. 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/QZPJ32266738.
Guren no Yumiya (From "Attack on Titan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5cb9125d5ee4d84d31652f3f45e389a52edff6182a0b75601f108ef14bb95b. 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/QZPJ32266739.
Shinzou wo Sasageyo (From "Attack on Titan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff8da0eb87b4fad66609daad6150a04339c2999e2c3a986ba2fa6a60c7ca67d. 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/QZPJ32266740.
You See Big Girl / T:T (From "Attack on Titan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66c9d7b4b2f95ecc901b8eca7e8ed5e4e0f315cacd92422d7ef89868c012d1a0. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZPJ32266741.
Kage-Level Focus: Amplifying Cognitive Abilities (Binaural Beats)
Sharingan Focus: Enhancing Mental Clarity (Binaural Beats)
Chakra Flow: Awakening the Inner Shinobi (Binaural Beats)
Lotus Zen: Anime Serenade of Blissful Reverie
The Legend of Ashitaka (From "Princess Mononoke")
Legends Never Die (From "League of Legends")
Kamado Tanjiro no Uta (From "Demon Slayer: Kimetsu no Yaiba")
Merry-Go-Round of Life (From "Howl`s Moving Castle")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23429f8c696d161cfbd198791ff46634ae2b36e9619e9082adb639dc933e7902. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:32:28Z), 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/AUMEV2560154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca906a8932daa586286fdf8c3907650a82e5b129bf30f82ae4ce0604ea6523d0. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZPJ32331391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a614112edd6216976a7d905cecc1ec59ce764d323a425e8bb7993cce7eeb144. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZPJ32330559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e82e5b7acdcf2557069896999c4fd47242164f411658dfd3011a9691663bff1. 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/QZPJ32319251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e82e5b7acdcf2557069896999c4fd47242164f411658dfd3011a9691663bff1. 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/QZPJ32319251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea68dcba80c5404fbccdd3361ee40f4d6d7e15a10cb30eedd1f8af388c10ca8. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-07T08:27:05Z), 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/QZPJ32344044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82586e6969dfa2533239e3c9cb35305a1fbd44dfdd648918964a0c46f5407e5d. 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/QZPJ32268331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1904eb0b3a9babe884a72d11a3a46bf4e0200abc7a2927f75224fb2220e388b8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/QZPJ32345458.
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 0x28fff3b49894748d24623a21f1bf759e8787d71ed56c94037bffedb47c98aa6a. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/QZPJ32323724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa264414d93dac0b8efff15ef71989d41d956dc678a133597841433e1472d3aa0. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZPJ32268332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef88db334f6270a42823a70e80c30ffc1310baadd805d9a2e925c1220b309e9c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZPJ32344614.