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 0x9efd4030b69304ee532ac8a9f992c8dbb707d0b5b0008acc125e3e9ab219f361. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12f913b4-6b02-47a1-a3ff-77debd660985.json and https://artists.proofprofile.net/proofs/artist/12f913b4-6b02-47a1-a3ff-77debd660985.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 0x4b6543d7880a0df6d474e15193e7d9d27b4750408932ff0cb5b5ab810a219321. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JPC542304578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11586fa12d71c627dd905d397512e7f6c99a0f98f63b82ab174d96860c7e27fc. 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/JPC542304580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b4281dabd2441d729c29d6e16461c005ea9794957206484f9fec4ce76506f8. 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/JPC542304582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09eff579086103290de48a61f8620d9225efb22efb2114754b2b2db4c5e98c7e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/JPC542304575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a5d5e6ec76c57a630f9f85ecea724ba88485f45f6dd8a3a1df0213c6e5b7f2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/JPC542304576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cdd12d0c5fc89bd1892e7451c2980945bb029c96b4c6e409bf08719c7206137. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/JPC542304577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ae2f94c1405342c61437649364228a95765b76962cdbcb7f2e329da6ea0d7ca. 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/JPC541904051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11db3d17d92ae9f4943004187e2fdc6bc61692c45f5fc6dd66265c34c267473d. 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/JPC541904052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf006b6908511181853e27a46338325c5c77d95db70e0be3c8e04ddfc2837f97. 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/TCJPO2178109.
I Love You Oh! Oh! from The Planet (Get Loose Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e795474267edcc4351fa98cb1d6172eb0b6a8c0bf6a8f6a1749f5913496fca1. 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/JPS802356303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7153eee1ef7a25efd269879f6af1b438943e09587e6c70d0bb6028ba4eaeec6. 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/JPS802356314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcf12baaf8e856d1ff9db8dfd4d3a8a9fbb639a1587db846a790f7c03058600. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/JPTE02301890.
フライディ・チャイナタウン feat. 脇田もなり
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364b9ee3a9bc71423854f776b32a6bae13b409a890056a037471b32e74a0bd82. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/JPTE02301900.
Remember Summer Days feat. cherry (SPARKLING ☆ CHERRY)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa30b245e4f91c454fdea55c391cdebf3067d68d7f67a2eba221365b6b1fbc0. 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/JPTE02301920.
SCOTCH AND RAIN feat. ミズノマリ (from paris match)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d0e7f2507b7182d13949637b952fc5764337c25641eb308e5e22df4cc57582e. 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/JPTE02301940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82152bfec3a24edbf3df967e0dd452b77055b2f59961af3b2a318e07ef3928d9. 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/JPTE02301950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3bc7e7da91ea8f01cca80a09629e409450cfaa37a69fb1445da0ca77635fcd. 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/JPTE02301960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eee9c05647ddb471cfa708abe315b07bbc26ec7163e7a2b34fb70015f5fa379. 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/JPTE02301970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9080958a2033256f1422b645455aa3a4e67f0dcf04eda8706dbef7fb6dac77. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPTE02301980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf8b45931f86dc09f000cea02f2e2ae8a10501c704fb0b932180306b2718c1. 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/JPS801837554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbcb99ac02890a9284f4a6322074b3e47a8cd3fd905aa83e845f8bfd10e9585. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/JPS801837552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e5cb68a5709d6174c3a7629082e07f82539fd0f26fb6ebc5026986bed18672. 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/JP92N2367783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea3f68e540cc54762ce9ff4343b07928614d61ac97d533db95424163d53dbad. 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/TCJPR2245390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364b9ee3a9bc71423854f776b32a6bae13b409a890056a037471b32e74a0bd82. 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/JPTE02301900.