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 0x1c854dadd3262eae9c7a2808709d22e2f0632d698eb7d2b0e19b8f06b4d9453f. 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/e65676e8-1d93-46b7-8e19-8b6352ee2279.json and https://artists.proofprofile.net/proofs/artist/e65676e8-1d93-46b7-8e19-8b6352ee2279.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 0x884edd02a7b3bccdcc75e4e250d5875dc6f6353cc573de2654bbef806bc689c7. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:25:44Z), 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/USHM21564994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc763aae567524fe493f0c658679436683e02240756d912c6440660d391859007. 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/USHM21564998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51372806af68df2f4677c1ed5686310c0847947cae68368c0c24225fbdf69c5. 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/USE831514620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc18d1d5c007acb2c0f0629bd6c9cf4494eb2059a1477127d0d06d16134cbae. 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/USE831516925.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c39372960c65658fa5d437251b3a7ce502956c993756e6bf6d4d57f9fbffac4. 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/USE831516938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096864d7bf03574f05852cc26dbf48bab67fc4a21e6e864838d1b28e545fea88. 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/USE831516933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x081966c432e2435c8cf9ec04e182d3b09c2c34b68b98377dfa6db377a4ed7f8b. 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/USE831516934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179dce0286d192e48647db8a39984eb2a5adaee4958760737c473ba1c0e8880e. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USE831516940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e607caa50776f8ff094a973bc46718f462388ba835c906e31c7f16ff5f9e22f. 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/USE831574848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04f7b9373d7bbad25106022db726043341e33b5543d544a293817bf7cd27868c. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/USE831575405.
Will The Circle Be Unbroken (From "Bioshock Infinite")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00daf2b6f42c46ae7ae574aa98063de2d4460b770c3a8cd1a9843bf866bc78d1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USE831575408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0fe32650f90e3bc2eda5677f0a1cf09fc4933cdf5231d7f25508cb73b86bc48. 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/USE831581835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe8646dd2e23c044847eaccd83dba5fe364308b07e93238f1130bea0a529cef. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USE831581830.
Gotta Catch 'Em All (From "Pokémon") [Chiptune Version]
Aoi Shiori -Galileo Galilei- (From "Ao Hana")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067608c5f74453578a172e4ed053a43e4b893e455ff62c062e1b12ac41a1cc0f. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:39:25Z), 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/USE831596370.
Interestellar Main Theme (From "Interestellar")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b58bcb248c681c8d73c4c5a6d50655815ac16eb4437b880fd3518568e32b5c3. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:32:56Z), 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/USE831596377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a21ff04737742612090b4674bde0cc0cf6bcddb6a543fa819fa2db4dcfedb1. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:04:34Z), 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/USE831596380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206f7bf61337db19e6faa896fe7df9225008a2f2aea88aabb335d968cec5790d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:54:57Z), 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/USE831596383.
Stay Alive (From "Re Zero Kara Hajimeru")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200c8763f185b840f3759b0123532770c7dbfec6d4fa41afb9726cbe27e0b6e8. 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/USY281610287.
Melody Of Water (From "Tales Of Zestiria")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafd56094871523f476d0eceb8605d4d1af091b043b13021513b89a094edc3f7. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USY281610292.
Shinzou Wo Sasageyo! (From "Shingeki No Kyojin 2")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35253ae2f540f3ad13e0fddae10311916d62a68711bd0e689a8596a2b1c8094. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:34:21Z), 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/QZ22B1836409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9be5a1c1eb812b46a39d9fe1d77919552fe148b9457b8763c22439be8d2254. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T21:26:23Z), 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/QZ22B1836411.
Hanezeve Caradhina (From "Made In Abyss")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5f106f49d7bb21eb5c560e187418466bb2e65089841bda5bed86f612c4086b. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QZ22B1883395.
Ichiban No Takaramono (From "Angel Beats")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a4692517e0eaad21672a7f676fcc916e4023c32ea955856a76befac18339e5. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZ22B2083872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aee158bf81dfd3f84ecd60df42894ddb4f4f022520491be6d683c783d3eee4a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZ22B2083873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd667a8606a3e7e4dfa7c841d3dca585b5e9de036d47482fe45b04ba2cef355ab. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZ22B2083874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a43543cabffb5b05d4a5a1f03c6d74cd3f092298712dda7b5ef5ed7cd43ab76. 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/QZGWW1974079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1167632eb6b9d2e857dfd7521e8f3bb2aa0bbbb10068bee60d4dddfda5353a2. 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/QZPJ32112232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe967977838c349ac7058b8642476705dc7c6754487e25a943371131e07c8fb43. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZPJ32113434.