1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x57e0f5eabef590a4addd60be8e712dd552aae06cb3dab1316f6320e54823832c. Chain 2 (Bitcoin): anchored in block 954588 (2026-06-20T19:15:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bc4883d0-36e5-4fc1-97b9-98c41d90e266.json and https://artists.proofprofile.net/proofs/artist/bc4883d0-36e5-4fc1-97b9-98c41d90e266.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 → block OTSBitcoinBlock must exist at that height 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 0x9d5c4dc9c67e382b41bfb674d01a84aaab1c1c643605d4f53710ca80de2845c5. 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/TCJPK1924007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97e206342cb19ca0e2f5e4ebab3ea8310bb0e446dfc8491139fee53b56e4635. 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/TCJPK1924010.
Mou ikkai wo endless (feat. SANSO NAKAMURA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1488143270947e89b8f2878441e4d9bbc5fd5cf85975c4ec167ee089a6e7ddf. 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/TCJPK2026237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb281f5615e821939b40a7c0bd13cbe4db8dfc354956a18cedb261427fd956e81. 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/TCJPK2026242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329338ad65dfab593696e4230a63f29f17d6f27452d5b151b44e4d3fc8a9e118. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCJPK2026264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc974caffdc47b7c89e0516828a8ed5e9d3ac7c63877863536e496d19d00ed8e9. 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/TCJPK2026412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf79e9b34ed32e3b683caa63044bed80f978dac7ee5dc7546103a36e18a62d61f. 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/TCJPK2026416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9a5065141a9a7f9d1aeda7c3c48939f61952f4db0ec534800c2d3c5ec7c401d. 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/TCJPJ1989944.
Endless [feat. Mameyudoufu] - Mameyudoufu Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903b0cdb697c4b4726f318da6cc8ef2adb3407050d932b9303825d82bf7ab987. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCJPJ1989952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe88c3f9e732411fdce7cfc18a0224b9d367cf5a656e227f4c5974e5058bdda13. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/TCJPJ1989953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cd5f5d35d9e67872386ea887f1378465246dd2da9575eb413b32d5cfa3139b. 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/TCJPJ1989966.
kongetsu no osusume playlists wo kensakushimasu (feat. Yozumina)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7f163cdc9092608ec9e96f48496aad937078326564665135e54dd3f7179e1a. 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/TCJPJ1989974.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55f24243a3bf77b616e61cde7da32ea8b5ad89a940c46aee14ebb4161878b10. 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/TCJPJ1989981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde97643d31458cd419b7975439f000ffc6ef684932726c543f33ef63afc38036. 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/TCJPJ1989982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fd50b952e3cd7597f751762af5719c59edb81ff90451ac5f9eaf1b68efa3cdf. 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/TCJPK2098800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed5b314c99681bc9a7bb388a1109434d7a8b0e3c342437dcc6d31e7fe97ff29. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/TCJPK2098814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7e6bd2731d2e3714d0b13b213b8b250cf5d3c0b11307a3611eb928d5b3074c. 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/TCJPK2098817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480ebebb891264c69724b5fbd77bfa0386d47e950dd0490d80cf8a5c31ed3792. 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/TCJPK2098827.
Why don't we start here? (feat. Nana Matsudaira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197d64450212ccbe37ccbbfcec939307f914fdbcaaf5a1096f311763f1468301. 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/TCJPK2098834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9145377cfccf2e222eb487934064d76500a1a34bd2857f081226271dcf9e822a. 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/JPW561804472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f52802fc89646b00a7d1f64250cd8bbf4cf9ccc8bd46e43412739eaa66b9290. 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/JPW561804475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdba38d081e5135748bca30b3d3b8fca3cf22f8abf9e68227f09478da157ff80. 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/TCJPI1999307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8270b74cfe57d476243ce89575f6dc357a1195a207d28ede4df7057b36f7b17d. 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/TCJPI1999308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e2f9858290acb1d0acf270a8bc0bc8449fc70772ded1b7334213c2df627f51. 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/TCJPI1999309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x325c90963932cb749947224e658f99e34c0e162b66e1520379505f563e0e8582. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCJPI1999312.
Crystal Clear and Nothing (feat. Kanata.N)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f7ca730830738f124df4181b42d5c6fe73df70863e2fdaa7020a52960ec589. 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/TCJPI1999313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f7631278bfa0db6019fb5762be0d26f984105a165a86ccea30bea3a2a79ce0f. 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/TCJPI1999314.
Crystal Clear and Nothing [feat. Kanata.N] - Avans Remix
Hype [feat. Such] - Massive New KrewRemix
Hereafter [feat. shully] - Myosuke Remix
Turn It Up [feat. Kanae Asaba] - Yooh Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75d4960e5f9104fd50422f2c26ea396f004ceaae8381ece8ebe1643cba7d113. 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/TCJPJ1922428.
BRAND NEW DAY [feat. Numb'n'dub] - Tsubusare BOZZ Remix
AImee [feat. Aitsuki Nakuru] - Need6 Remix
Dear. [feat. Yukacco] - KOTONOHOUSE Remix
NiTE CRUiSiNG [feat. Numb'n'dub] - Sober Bear Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf70aff0eb7ec7b890bf202e74d7b50299534ce737b9e2f523108b4f75d74941a. 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/TCJPJ1922437.
Snow Fragment [feat. Aitsuki Nakuru] - SprightS Remix
Your voice so... [feat. Such] - android52 Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1134de21e800f7b36c6585635a9d3ba9fbb1ed9e0e34e6ac08701902af5ee5b1. 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/TCJPJ1922439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5f615b121258a592c76360fbe48162cae307c0da65a73e6c109ab5640db286. 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/TCJPJ1938126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62d5e5ce58462f82d6e0496026f96c5e44068c361f712b753b9109c642d8de2. 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/TCJPJ1938137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8033d8400d8497d5dad6a959cc7e87985e227b55c24237dcc147d0f981d4c9d0. 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/TCJPJ1938144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a71405bc9bf941036855dd113c37bc44fd858565a4964f92ded7ed52e74013. 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/TCJPJ1938155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca23110f1b046c7213766a74be850679e4e4b6a46a0a235ec930037413759726. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/TCJPR2210957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26ea60c52d0adcc81487a81f98cc0561f2b8cd61c8fbd6b7d1f18efe9beda38. 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/TCJPR2210959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2918b415c8320d39ee63dfc8e539b0b80db38235c301940445f041990085f. 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/CAGOO1991862.