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 0x31af084441ee300af631ea32b8d02637582bbdd94d5a653ba01590cebeb8d867. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1691353a-ab79-40c3-b428-e88cdbf588d7.json and https://artists.proofprofile.net/proofs/artist/1691353a-ab79-40c3-b428-e88cdbf588d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Megalovania [From "Undertale"] (Trip Hop Remix)
Megalovania [From "Undertale"] - Trip Hop Remix
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 0xb80ca882b9a9d01b782c2308e18bfb080f12653118b36dc438c61090eb9342ce. 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/QZ4JJ1674933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9f5f98f4dca2320c5233a60d7b8ae03f9a92b4bc3fb151fe693d0434fa041a. 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/QM2PV1722142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32953e76f11b64eba0843396c9c125e0827e0106a982c5e5ecda4900af2f4886. 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/QM2PV1722143.
Weeping Clouds feat Hollidayrain REMIX CONTEST
Touhou Danmaku Maze (Official Game Soundtrack, Side A)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa638c893a088b63e3f2b261e494045e85e68b6de23445c45ee5130dae955729a. 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/QZ6K42001171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdda466f51192cbd2b6b85530774e8d2079fd3e35ec19748e2aef34e182a478ea. 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/USCGH1737852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8f0d23ee7e00426fd252fa0b506b9b34265535ee633a729a789692503cd7ff5. 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/USCGH1737861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa923e4db91e490abdc0a4eae41661fd4664bda37ed744232fd4909f242d43980. 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/USCGH1737862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5ebf37655fa54c00e46df4f3e0e2619ae843f0c59fdb3eaeb1c9328c198cfa. 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/USCGH1737871.
Aquafire (From "Sonic the Hedgehog 2") [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fa0fce36c9c0038729583c1f5009ad710350d929b3f0ab07bf74cec05597d8. 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/QZ22B1804156.
Spacegazer (Mega Man Star Force: Space!?)
For Everlasting Peace: 25 Years of Mega Man
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7aa506cc300115d099ca72c246d2d91af3f9082f1f27c365186e11d1e173b1d. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USHM91359103.
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
Spyro Remixed: Music from "Spyro The Dragon"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5975d95e32f93f63b5e32b4636a22acd696237e2ab65a1e6b458ee03106a1c. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZ22B2025333.
Club Ocarina: An EDM Tribute to The Legend of Zelda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4625eb47ea5b874f056cea00e0a8acf3ba04f9519fa5c910dc98151bf1330b31. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/QZ6K41901080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dabe8b1c8900967a0c3a3e83553d84da80d8880637389aa55c2cd6954d0a77. 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/QZ6K41901081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ea058b0dde7167ffda56f0f6693f479c6abd4367bbbc5ede6f67aa6c45ac7b. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZ6K41901085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1488205ff899caae451499f14e63f99798780dcf61e8f869861efa282dde77bf. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZ6K41901087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4b0429b379a121a9411cfd6cca912f15e5040879aa4cd4f7abd78e1f0d1eeac. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZ6K41901090.