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 0x91ce29fa6173f784c5dd3265a82b17acf9d683df433ea2ad73292ad7f73d9980. 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/68d7de34-096e-432b-858e-73271b0647d6.json and https://artists.proofprofile.net/proofs/artist/68d7de34-096e-432b-858e-73271b0647d6.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 0x00c3df85af8cbc42755e991a8d2a0075cf9fbda30da40fb42890ae7c23089949. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZGWW2069790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9652eb8ba90c3e572e6124fc606504fe744f89f2a2c89b90e97716566945e24. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZGWW2078078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2e0e58b5191ba71c7af5547f71fe3834d62dd3bc818fbbbb6c5a674331df46. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZGWW2078079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc1a6c60bff441211b53cd9b4de6f7e733a1e4a0096d516258d4c781c2f4642. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QZGWW2078081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886a3d2d8a6c81bd65700b396f97be256952611e6aab497a9fadc9528ca33f63. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:04:05Z), 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/QZGWW2078084.
Sonic the Hedgehog 2 (Original Game Soundtrack)
Final Fantasy (Original Game Soundtrack)
Super Mario Bros. 2 (Original Game Soundtrack)
Sonic the Hedgehog 3 (Original Game Soundtrack)
Super Mario Bros. 3 (Original Game Soundtrack)
Sonic The Hedgehog 3 (Piano Game Soundtrack)
Sonic The Hedgehog 2 (Piano Game Soundtrack)
Sonic & Knuckles (Piano Game Soundtrack)
Super Mario World (Piano Game Soundtrack)
The Legend of Zelda (Piano Game Soundtrack)
Pokemon Red, Blue & Yellow (Piano Game Soundtrack)
Streets of Rage 2 (Piano Game Soundtrack)
Zelda II The Adventure of Link (Piano Game Soundtrack)
Donkey Kong Country (Piano Game Soundtrack)
Super Mario Bros. 2 (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb10b22bdad495ed10807ea74e8caef281cc1280aba9ea8f68e1903034114b1c9. 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/AUMEV2129509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291b46197f8c7219f21ed62dbb40125536b4f87ea2e350942357de7dc5a08f2f. 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/AUMEV2129511.
Hearthstone (Piano Game Soundtrack Volume 1)
Final Fantasy IV (Piano Game Soundtrack)
Super Mario Bros. 3 (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6edabc71f034f9993d892d0e50df44dd4351def7458bb9352fa4bda468fb394e. 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/AUMEV2131480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe0912efb5c397a8542992b4e9984d4ae512f2087dfd78be4a0c9247cbf78d5. 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/AUMEV2131481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf98e6cfd58f305dba5ebf867acb3f5f91af21f31f7fb906766b5148c6c8dde3. 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/AUMEV2131482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa888430117238dd9de5ddda4a264e3cc5f20cf2cbfab593cbae88d50093fa7b8. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/AUMEV2131484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd747a6d7e0bef4cd9965cae8a80ab5626440f68ed6bd6b0142f1253cb0c45e7. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUMEV2131485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbc466c326e769f441578b536059be99bc18a27f2b7bf10bd1bee64d8aedf69. 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/AUMEV2131489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac860bc5a6d8c2ba51f460ebe4cc694d4b3b5b05c82884fcbfd93de59630e98. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUMEV2131490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9799286efae42a61a9105a60c88a4a2c0af42c9c8bbe5e42f45bf8d19c4589b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUMEV2131492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8686115b10ac2febaf06a69eb8305ef84dee26c5a5f15049b4cc88e38a80806. 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/AUMEV2131494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6677cc7723664f20e47412e6b4ef79f101f1f1156cc598fe01569373e07d2da. 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/AUMEV2131496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23592b46e39a4e7ca310b4e3b36948a3019598bc0ea9acf80a03de405204a003. 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/AUMEV2131498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345aef093ef03c0a8c7af486adbc1ac8b0b1a7f60978b4a5500a40b7b4f45108. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUMEV2131499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dee8fa85c621c14a7d66a34f5d9dcdf3d0004877e14aec1f3010ce067d1fce0. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/AUMEV2131500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a9ba5878b63d9de7dcd28a257f98c04d08b2b192106628c58e3c40836429cf. 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/AUMEV2131660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a9951c6d1cb44b49c22c0f2ea19900a02b1c2fb451eef5d2ff230256ef2694. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/AUMEV2131662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8e637edb733fe2ad51c3b76af741a94f3464a64f984d62a359708de5288172. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T01:54:29Z), 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/AUMEV2131665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba53926cc296d7bf1eaf32fafb15941fcf1df1c5c57313db52c7791fdba7c37a. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/AUMEV2131670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42c21a5f6133b50572f8963b1d41962c92e79caea7c1b3d1b36f866228e7873e. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/AUMEV2131671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0f1df9d46df8f0960efa9fafd4d7fa38b3e2c46f2b281b8a517bdcb1a371be. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/AUMEV2131677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969986eea567b075bc9594796e64c5a9d59a0b616e84ba353f34b9a0d3094f25. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUMEV2131631.
Final Fantasy VI (Piano Game Soundtrack)
The Legend of Zelda: A Link to the Past (Piano Game Soundtrack)
Castlevania III Dracula's Curse (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc591b7591c851d3e399a0a8dba06a7cc6a003e0735ca39467055c46af4735964. 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/AUMEV2137468.
Final Fantasy VII (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e8187905b196c4af0f1af60ac89e6f27474a99272172b67ed4fe83b8f2904c. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/AUMEV2140500.
Hearthstone (Piano Game Soundtrack Volume 2)
The Legend of Zelda: Link's Awakening (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e3e71375d3b25e616e407a28cc5995c5d7d0d2f1092f96969564fe6421c450. 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/AUMEV2143954.
Donkey Kong Country 2 (Piano Game Soundtrack)
Hearthstone (Piano Game Soundtrack Volume 3)
The Legend of Zelda: Ocarina of Time (Piano Game Soundtrack)
Super Mario Land (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4ffa25b9f951f4f4a509e9279a9084720849b22c4343add2aae0203cc8b87b. 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/AUMEV2161140.
Super Smash Bros. (Piano Game Soundtrack)
Kirby's Dream Land (Piano Game Soundtrack)
Little Nemo: The Dream Master (Piano Game Soundtrack)
Castlevania Bloodlines (Piano Game Soundtrack)
Pokemon Gold, Silver & Crystal (Piano Game Soundtrack)
Super Mario Land 2 (Piano Game Soundtrack)
The Legend of Zelda: Majora's Mask (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8bed1570e667c7c7c214257777dcd27ceb5a190dc461de443bac53b1e508a1a. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/AUMEV2224398.
Pokemon Ruby, Sapphire & Emerald (Piano Game Soundtrack)
Street Fighter II (Piano Game Soundtrack)
The Final Fantasy Legend (Piano Game Soundtrack)
The Legend of Zelda: Oracle of Seasons (Piano Game Soundtrack)
Mario and Luigi: Superstar Saga (Piano Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f3a7aab2d69f24d87080580f7f1c01d3bfc3d864b7ee3b8124cbf7337e0f6f. 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/AUGBT2219587.
The Legend of Zelda: Oracle of Ages (Piano Game Soundtrack)
Super Mario World 2 Yoshi's Island (Piano Game Soundtrack)
Chrono Cross Volume II (Piano Game Soundtrack)
Hearthstone (Piano Game Soundtrack Volume 4)