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 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 0x1b8225683999b96dd4c072a9c5deef1126fd47ca0b6c3fee1441a1197ed09c0c. 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/91d036f4-44e1-45c9-9140-d61b7ef7cfa9.json and https://artists.proofprofile.net/proofs/artist/91d036f4-44e1-45c9-9140-d61b7ef7cfa9.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 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 0xe3a1c276cd25e3cc18a37a9e81b5e39c369f927fbbd60e44768990ce3f1a4304. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TCJPS2254943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf744ac91cec94879159b933b2e84c9a53cb62980dc4f1d6d05c960b1a58059. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:36:47Z), 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/TCJPS2254918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31af59de31d91be072cc7b59ad2ca68d852b847b788ca06e8e6c9d82d7ff087. Chain 2 (Bitcoin): anchored in block 957766 (2026-07-12T22:25:04Z), 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/TCJPS2254934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bb20cf67c8a0d1e2da4b4b88680ff4fc0b87f8179022feccf29664bcdd1b05. 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/TCJPS2254940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc018bc4b580c853cc6adb09f7dbc351cca36c43350230e9125ff75f178fd744d. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T03:01:16Z), 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/TCJPS2254955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe81959b477c6d93953c156d2ee2a43f30c835b268de76de6914d61542b3582c. 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/TCJPU2383034.
こんぐらいのこんぐらっちゅれいしょん
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2d851832765e0e8c86184b9fed1b85d5617178f8bb8766e6ae8b424106f9ea. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/TCJPU2383036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ed4d9093ec7305b526d71e3ff2edd82a867925dae2ebd6b74a104b5171c1fb. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TCJPU2383050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f857adb3f88d0e6e27c5c8b088ad5cfa13597e735aa79a7b27eb1dec8a93c5. 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/TCJPU2383057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821f9c7dd0e6f6b51cad691e962e74329b5455b7af092b8baeb93a954e122dd1. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:46:37Z), 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/TCJPU2383062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2be0ca9c4871b38e6a1301d26dd93f73b36201ffed038bb82416f776000d27c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/TCJPU2383064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f08447d300ca5f602a9811f858541ef5acc9da9375391e84d45f899c5e8a851. 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/TCJPW2382755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a332950d71427cb1c64786d76a58388e495677775ad5b96845cba1b1a37ecb. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPY2367598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2af3cd3974358d9b770070bb4cc3360b75e6c1bb7c266d694ace1348b48ae67. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:20Z), 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/TCJPA2449683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af4203ce567d17d221a89bfe83334a1b9085e520af046f2868ad8c146ebb605. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:31:36Z), 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/TCJPA2449686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc237dac9ac9c5867998fac10292fc1b4162a92e1c040e3d7bbf36fc6584fffea. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:28:34Z), 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/TCJPA2449687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8299cfa31379bd335588068c3b28c6ab481fc41944600e4e5e1bfa6dbd2ed20a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:01:15Z), 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/TCJPA2449689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173876b4ae6b86a06c4f846991b3fe9f68dcc3d44a1dbceaaad1c712ce3060bf. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/TCJPZ2421671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe6726342ae6d29337e207e455d27eecb6f621ad9982c78ce22feaa0a67b457c. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCJPC2423901.
OSARE GAME. -BAD TUNE's Theme song- (feat. RYO-P) [Nightmare Remix]
オサレゲーム。-バチュンのテーマ- (feat. RYO-P) [Nightmare Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d780e18c97a09c64a42f14674432f948be650cbf88d7c0a671a6a071663204. 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/TCJPC2440222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf00beba27c5b60be691a79a45c6ff392ea29c1a1078d1760ccd01f7f62d0a326. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCJPG2581024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5e44a28d99ad2841ef42adb1e349cc380eda1ecd8bfa9a8f4b73159ea78781e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:26:55Z), 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/TCJPJ2520864.