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 0x4096593b234fb8d232b2f0a7f62ef06b056d2773069d602eff0581b0e0a77352. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05721377-d178-445a-91bd-d97de2c33654.json and https://artists.proofprofile.net/proofs/artist/05721377-d178-445a-91bd-d97de2c33654.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 0xa9724a8916d20acee9be3563e9de26f7802b72fb4a61821c13657d3bf7b4c2da. 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/JPJ902200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa340da67d91dd55080a683c4f18195de2560d19817955f9c6bef71ad7bfc59ac. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/JPJ902200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091dd72a4cc8e6f45b3918ecd6c945ccc570c4f045b1765a73862cf43da8f746. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/JPJ902200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d162e3923bfa64299a467c21d112dd3bf34b0ee97e9680591bf8919261964bc. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/JPJ902200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6ba98df4b52be4e11fc6b01c19d0c441f777a5f1171a47f20651eed76ef97c. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/JPJ902200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ee26c8d4cdd6eb3f1958155967ea31cddae8fe6527f0afef3b0d976594200d. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/JPJ902200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffcc756de7e39e2257e7af0e5d9c6521b14f5eace59607efde9719770bcc8e44. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/JPJ902200090.
またね | seek, ultra [THE BED ROOM TAPE Reprise]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514ac1b22ed479f53aef0251eea4a22fdc5ef493ec1fe85eb25f365ce49d94b3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPJ902202370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fde33a1ae67bd46a82b0bcdca0ad0c41e5c1ef83e30e57e4be3ea9f5a777bc5. 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/JPB622200210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b86c1292209ceb56da77d8daeaf5b993fc073dcf03681dd2123bc4e78190bc8. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/JPB622200212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e8adf35c8d2b694ebbb2ba73a528134d76885c644308610f701fb7b9907dfb. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/JPZ921310785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ae9b5c49cc6646e418ee968acb3f4fff97543e65b7e885a569aff3780861ccc. 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/JPZ921310790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2573e908e0f69bf8bca537146c5ec01c11811e8a1ef0ba6e0bf74d40e3da2f1. 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/JPZ921310794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77f325eebe27fde1fce5c3255d65d7979f95b7c3295f837cd902f8b5b11f3044. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/JPZ921310787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35d28de6ac3cde49933c1dc0600d543ef5cf3a059ff63420d84029bc86362329. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPZ921310788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb427a3b4f2cbcd14acd4cf313362230cfd3b4ebb183093c5d9f9a7de4d98d456. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/JPZ921310792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa340da67d91dd55080a683c4f18195de2560d19817955f9c6bef71ad7bfc59ac. Chain 2 (Bitcoin): anchored in block 957029 (2026-07-07T11:17:55Z), 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/JPJ902200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b1c9f3b75349af5fb11b26c1fc62b439caa93e607f54944e7d856d7cdfae1f. 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/JPJ902104970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x127304f9c7fa136dc00e286f691dda02354a1a17a1218c2ac7e0191e247aa0c5. 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/JPJ902104990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d954a9a27760fc312f9c1b41714f0b4e1ae738f6273ea69791ec33d8879ba3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/JPZ921601468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41b1806ae150206ec9a9090ee85077b611e6d656d6bc3f31ab3c0d5cd7d733b7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:35:09Z), 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/JPZ921601471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf18967d799ce1ae544aed0b5c1c8f1f51c4ccbacde83fbc887888a6c2c6a42. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/JPZ921601469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9008182e22d59e591690fa26f953e7343cf066362590221a9673ec7ff8d7c29e. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPZ921601470.
Kaisentou feat. Nao Kodama (BudaMunk Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca89eec564a0ac4d332df0053eea65b147b648aaee2d0a8bad5663b105aa314. 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/JPZ921513909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd465584747a7ae93799d0f1858f3ee2245203eb41794d2993ecc34dedc8be6. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/JPZ921513906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecb4a96dbd656416a0a5f6fbf91458bc2a3dbbb8f9f794a24d488acabf7b4d2. 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/JPZ921513907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ef12dd764cf01447d7da07c478024974e7c475606d837ca8aa8a11b3adf533. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/JPZ921513908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8241abff0a69dd76415bc231ce1c1075d15bbc65bb7a3efe9763cde026b3c532. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPZ921513910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf9c9b17cab301b5c1c2069c18fd1cc8168183051e746475829fd5c6e69f845. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPPO02303196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41da3824d13c1e5b9393646050794152d9c30f6a326a5c7608a9fb45c686f43. 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/JPPO02304187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06584c936c7104b340d79da989ef87de71f361a2758bf0b0df40999c2226ad7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/JPPO02301290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f7580c5ab1ae774aa12b6061404bc262d72a192214a25c10a41e6a0cb4e561. 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/JPP301900451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16117c329109fcdc73a705da6cf87dc03ce4b3f7e6ef0202cc0a82552ddee33a. 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/JPP301900454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ee79e30b08b9748b3c0e8e5d374facf1d5283a2eb2a18adab7c597a3806ea5c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/JPP301900453.