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 0x7b4ba525902a19bed03f4e226f62c168110fb76d774d5f81a000d253463bc242. 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/d9065906-c874-4a05-9257-280b00a30a69.json and https://artists.proofprofile.net/proofs/artist/d9065906-c874-4a05-9257-280b00a30a69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hypnospace Outlaw Original Soundtrack, Vol. 1
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 0x83b54a5c7e9ea937919e1d5aabb0869e9b573e4f33ca38792d8b38d6ce86b0e7. Chain 2 (Bitcoin): anchored in block 957714 (2026-07-12T14:35:57Z), 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/QZDA81995200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01443aa25f0c017a9e92047e6e5ed9318724c6e574077b0af490a5c425e8db8b. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/QZDA81995201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500a3f6e69de12c213e61047a0c33c64865ae479f5a2d28fe66b8eeddd376d90. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZDA81995203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba163a83352c63fd61a928e11e273a3b5ecaed9f8a8da5cc2168f5ccce1a239b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZDA81995204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b16241d9303a40de477fcfc2903f2e3539fb72c7d7f076d817784a8ebaefa0. 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/QZDA81995205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9373f1b299f4099ebace36fbbdae5f3765dfbcdadf76965ef8702cd65b1f374. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZDA81995206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d70d9a35b7cc190e0d8cfeb18519bb23822c5796364a1459817cad2fabf578f. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/QZDA81995207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7f8d757f3f839c1570e53a0fbbd8efdebf5bf050656bbf8b952952fc0c5c62. 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/QZDA81995208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dc84de70ef80e022216b7b7f2aca16a9c8eb624ac8f580b6e8456721bdedd11. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZDA81995209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0a6612fa01eeae771fd0d521b8a04b44cf7e2dad53ed6741f05fd99497d8898. Chain 2 (Bitcoin): anchored in block 957720 (2026-07-12T15:26:09Z), 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/QZDA81995211.
Soundscape III: Mystery, Soundscape IV: Virtual Shaman
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52b05c62b2b1fa48e2094805778bfe2da19a93772eff5a96fad58686ec3b784. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZDA81995212.
Hypnospace Outlaw Original Soundtrack, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf83b4557fd595b48817d505f77224d9cc821984843c7081b158e6a938c79c1c. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZDA81995221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f48ddef304a12a7f76c21e830a337a5266f841468a7e70309a0a25b301e7ef5. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZDA81995222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ee1ca0ab12cda11164ff63c1d66e39a5cc6d7121ff24e7d0c9389654bb05f7. 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/QZDA81995224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3583771b85a89d20eec52db19084c9dcb69efefa1bcaf18c3941d1bf6892b2. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/QZDA81995228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4a4721da60575cbbf08a2788c271c50a7babe38659b2a6aff31c7b42d39f7f. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/QZDA81995230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a3f8bf940ef76164abc937be61b8fe5a2fa85a04bdb1d3b006c46c4eb65069. 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/QZDA81995232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x988d0ddd04429aab7d3b5b2fad5bbf47aa1df18d37404c9c2f63f88061e76461. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZDA81995240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd496bea1110f3cf34a61445974a135061d123af3e8ffbea2348900c1204823f5. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/QZDA81995244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3662dca7821eeb15e36469052abe06dddf70bb459794b7081c1904a25d0efa76. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZDA81995255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3a164b0d3b89fd3ffd6dbdbae4681e93577327a722e4aa0422af5f3893f13e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZDA81995263.
Slayers X: Terminal Aftermath: Vengance of the Slayer (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd29bdf163bd5226da22c981ed68a7d87128658ba4ce5695bf21000c6504fa59b. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBLFP2339573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf83ca775feca7dec316e98726d3c2365046f0803522c22b6b8a8a22af2ee26be. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/GBLFP2339574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bd72e2f8f37df9956fe67cf54fb083d8a2a30604ef445f83cfb37ea2f7dd8b2. 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/GBLFP2339575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bfe37b1d9006d8969e35c3c9ea4409bd66e93375d63be0b29ddc921ed9e167. 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/GBLFP2339576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x701886b3e8bf31be51de65135c59059ef937015e379e2fdd3adf2316f5a36c17. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBLFP2339577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36bf0be78005913e085b4898ac11cafbc1b3aa806b9567a782809ac3443e68a0. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/GBLFP2339578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de579c3432b91dc5a9543dd2187aa580808defcced58517027518a7c9faff55. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/GBLFP2339583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2e989a95f913109f5ce963f480dac3b0db975514c6a6ae8c37e2e86d2d2b17. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/GBLFP2339588.