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 0xa364870cea3ce833090e47b1aec7ed7708a0953f6af57b29daa65fa2aeeb3457. 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/a114f5c8-a94d-4070-b447-70a5d0de7748.json and https://artists.proofprofile.net/proofs/artist/a114f5c8-a94d-4070-b447-70a5d0de7748.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 0x349b82a819c39033f002f390cb33c721e0adb50c0817beb0ac7ea37abc5fd6a5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CHB862102046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6ba37951c3d8a166f93405b491f6927f1df89fb0d3720cf414984fc0e0b39fa. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CHB862102062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x568a6cb6970c0c9e65c6d84726d71f52e900d8090e5879486026fb01a9deb3c0. 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/CHB862102079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21e04122ad04e5a54a6114b23ca85d73522538e43f3ddd7b6148cb43c327387e. 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/CHB862102097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1092d8df74261f4e8c05d3393acd9e8e9e819206ffd20e21fba481df3f0acdda. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB862102112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c22c35087848912c8bdb3b2f906fddd61b79349e7586113a371ed016c8f74b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB862102128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ab740faf5ed98d341ed98d9685929bb8f388413b129732cc2491233838ea89e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CHB862102144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa181501670ed7759644cacaf70b2fd023acb493d869a18b39e5cede545f77565. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB862102161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8d6c887e6d9032a10209b13f90fe3860ed11f323faab11e5f89c0a92d1e131. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB862102179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6852a822d721ddf30b91f8c7b4c6b2d51fb885249248a92efddf7bf7ff747a6. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/CHB862102195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf94e0087156d69b794fffb90f9b8416c31da9a0b66fc9899f485648ae075b5fb. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CHB862102212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16589a36443f25537d02aec1353b7e42569ac81666fc53f7767a22449ebafe7d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB862102230.
Godspeed: Uplifting Orchestral Cinematic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c153696772111f1b9d0f0602aa0bbb939749d2532b8003c9f9dc68c3183fff5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CHB862101903.
Tempest: Bone Rattling Stadium Rock Trailers
Cirque Cinématique: Trailers with Freaks and Fairies
Let There Be Light: Emotional Uplifting Trailers
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6783e645212840ffc23a5146f29d6be03e8dc2d7c6e7529b69207b0c11eb9886. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CHB862001474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3733c74c5402ecd3a164fdd77482d8aa23bf3cb9030afc80c6761aca65c356e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CHB862001588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9adce0bac6318f08b20211b6ff247d2aea5523fc20f1bf9005f561541d9d7ea6. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/CHB861501092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe243e81aeee7aa51606bf745be2cbdea6f6720188aa7a4a24c889ec389aa012c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB861501093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b384f250eb9a79753aab2598dc3f15b2a00719b68edab38e4bd9f7f167cce45. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CHB861501094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1415b6723774d41e453a1e20dae4edc88f6bbda897786b68b075a89203a256a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/CHB861501096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580ee794d15195ab39f49e065c7b46f020250981944fface71b9bdd84e872555. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB861501097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f98814010e4dac1fa3fa9f99416562945f9419be1973e0a6422a2a3854eca1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB861501098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4aeaf0edf1b01bef6c623ffb8746ce9d17f2b057edc04aabcf6f38565fad2bc. 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/CHB861501099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99031c87410b5e77d30d9710174120b519f391cc9ec3c7e493154ffd752e3d15. 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/CHB861501103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3a1379667203ba00acb5a9708371930103f2ed88d36c0a4452b375b6dff8b0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CHB861501036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x319c06aafba59d4fca29e1641cdefbd4714d73cfd005223e27d7f322c99cebe4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB861501037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf9434326b77078448568d68c7f6634266d4e35feb4fab16c4181fe9d20bd085. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/CHB861500888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e5206d67a7f963faae8c14b971819fe2e316ba5430dab253344bc1a166a0010. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CHB861500769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba60998a35d09d07be4247723444277145c63c0d9b1dfd450e52a8f2015bb5d7. 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/CHB861500770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e9ac9181a6a88ce0de4d18679f54abf19c8ab1983fef15c91cfbcbaaf307c6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/CHB861500773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526ae6a82953369aeb24ffe969ddd835788bb2340b1f21db8119e9fcb4faf2b8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CHB861500774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f2b356ed88a15d0f967f1277e5a71cebcbf65a97d1461bf97f98df54ffd776. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/CHB861500775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f10e496fe61df10bc81e606c40ea05f3ae279a7175b5ff8eb10a10ca2d3a6. 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/CHB861500776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604d703ae91d13d7380725d2e7ecb52cb21d967505a6b8c5e9a43a6244ae0e0c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CHB861500777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cce206a6ff7b70dffc188aeab06cd5f62128d39018ea7bed8d56fbdbd1b23ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CHB861500779.
Invicta (feat. Musicians of the Vienna Symphonic)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ef3591eee6ebbe24549ffc4bba3e2acfab25b740e8ccd08758380772527dff. 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/CHB861500486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810115fbc50c655db2aed60d9c8d62ec42f753da1c4ca8ba58df43731be3534f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/TCAAX1125693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2ea5916bc30517323b4c8d0c73922af7966ab0b47392e145d83766376b74bf. 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/TCAAX1125704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa0bfe442a10e00e80e4c986756bf4f906cb2ba11bba51eebd77efc79463714. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAAX1119020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd508a31b3b9771edfb0a0adbe00a0ad79f427ddfb15ff42b7015673ce0da5f58. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAAX1117095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583c39223cd96f7d40574fbc6a409da229d68c280dcdd5df8380652b0103637a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/TCAAX1117102.