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 0x067f1e154cec097ed9c30d3dbd98576c7ad2211ed0ae1c0db8faa6482014df05. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/799e91cb-d2e5-41c2-a1e6-14f723802b9f.json and https://artists.proofprofile.net/proofs/artist/799e91cb-d2e5-41c2-a1e6-14f723802b9f.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 0x7b174c8f4ae47cc97d295fe6443fb172987b32e26955dab167f6f52e71fc7ff8. 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/GX38U2270867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c77b191376bdfd842b64d8f4f4da134b9b03cd59f6172278582066e1672a28. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:39:13Z), 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/GX3HH2243771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf87d9f8c9cf415964f48472cb44ca14516c8771afdade4986e2718303901e6bc. 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/QZGWW2117786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e53685e73d2bc7f1b6b2de3c33b9116b0e4fd00d836b11134b2fa64f3ca1620. 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/QZGWW2137409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45b16c21f0d4bfac31a255504e50691ae3600be0a57862e215949b04146c17b. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/GBSMU8675628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d91755d0901071495dd21a2b40f325a8d76c8e4e7f11577b44d3f7f5bc335e. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZGWX2046607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe576b466c644971c640c2927205e47d300e7b7952c4ae90c15e5864b59b107e5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBSMU9112133.
Anna ni Issho Datta no ni (From "Gundam SEED")
HOMURA (From "Kimetsu no Yaiba Mugen Train")
Tamashii no Refrain (From "Neon Genesis Evangelion")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ac6b1ec3f16c53f185b4b6515082f09e66fa88bcd668763b428266221ea1096. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZGWX2105446.
Brave Shine (From "Fate/stay night UBW") [Cover]
Hologram (From "FULLMETAL ALCHEMIST") [Cover]
Top wo Nerae! ~Fly high~ (from "Gun Buster") [Cover]
Platinum (from "Cardcaptor Sakura") [Cover]
Voltes V no Uta (from "Chodenji Machine Voltes V") [Cover]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dcb5f32966a947b0fc8fadb6afba37e0e5524de75d99d0ee962be6230974f69. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/GX4R52119857.
Soar Angel (From '4 God Ranger' [Original Television Soundtrack])
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea89a0848897d6e00201ba8e326c038e8d8a9944a8b298e6b6ab5328db338cd. Chain 2 (Bitcoin): anchored in block 957699 (2026-07-12T11:51:06Z), 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/GX38U2208939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x986ffcce489bfdafc4792960ad917945e5ac375c4869ff0403a167e766faec06. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/GX5MX2262547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c0f7e275f13b48950ad917fe7186ad2b5771c7d71146bc8561d502f4441dc6. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:45:24Z), 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/GX8LE2385185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9300287f1472d5ab5afc582b4fa78ecebb0f263c9da1194655ae22e76b01c90f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/GX8LE2309877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9975a9f295d45972eb92c667ad09a36aba7782ff941e7d5d0dd34f1f0beb2c7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GX8LE2373460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x412b402a03e9b4b44dae9d8935ce450aad5c640b6bffd7285bcf74498c2a8560. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:08:40Z), 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/GX8LE2337134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33c5c2fafd6fecd65160b3a9009dbf5e3624b6e772f31025c828dca5a36179d. 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/GX8LE2310720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x577856e80231bc5e445c6541bbb590cff983355638c9744411e23ba5a5b0766b. 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/GX8LE2301055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7704ce0b80f529da4d596fa04b99e28fda751ae20d0fcab23de7b7d891ff0ac9. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GX38U2337994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f393b06b66ca8e361038ee230e31b2faaa2be88b9d770e4a1552daa5f0d225a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:08:10Z), 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/GXBDT2347983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef83ba2dc07d9e2bce8eabf8861868a9ee9d95ac80f3805e2910106d629244b. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/GX8KD2447368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a68b5ee7f747e7a3054083d1e49c9b581594999f96f9a5108f0a03d821911db. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/GX5MY2430168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b95f12e7f2fcc48bbdb92c01f87a6a52db013290a78e85aaf437c4beae8d0b. 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/GXBDT2431931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13db0505c2a90dbc98b1defc6209e510db1831ad814b1a5095f33dfd392a6bfd. 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/GXFHP2445070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc628a58f1c4086d6442b18ebc456e1d1ecb4020040eef46fffe7937e011f2863. 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/GX8KD2589871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba26544f932d724912d4f5b7b62a6e7b16b7986cf1be5f0e19639d3ba8c7471. 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/GX8LD2573395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d045711f23ac349eded33d29117f5a4a3717d4982261d1db3e179955a579e6b. 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/GX8LD2594241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb2cbd6b6ff2631b208c292032489bac70588dedcf83851e9cdd5ab372299eb. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:12:28Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8LE2531960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3ccc9b0df68cab5dfb517dd6f6c159d30c26503d384a91f5c6d310c511e93d. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:47:44Z), 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/GX8LE2523502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1816d6906ab6ddbdaf5f4c13835230435680475f748d2d56d0e794f75f26d1c6. 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/GX38U2549063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17830d4f0e59e50316a787d18241f8872ee1663e144a004e00f68a3deed06ec2. 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/GX3HH2516902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87757a722b4b0cb7fed3a5c3f24d634a8e660c41994413f4fb817976fa6db793. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/GX3HH2507903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36a8e13914fdaa1b1cbb870f2ca4cb7baa3ea321a7b6f8ae9446116a90df4c29. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GX5MX2540550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059080b115cbcb761df38ea5517092b6d1ad05461ca2de025904061e89f7155c. 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/GX5MX2548206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ae0902276049773143f917328566c68c4ce36c6723eeffc29ac69c0ac6e08e. 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/GXBDT2571494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf029ed02306830106747b064d1011e595e26085c8a96d4c124c2c8d6515d7113. 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/GXBDT2542708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa38a935e7a19403461905602c2ce3b5139114cfb532533529fdcb9fcb165bcd6. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:47:48Z), 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/GXBDT2587409.