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 0xf8a173e52720b1fac8ac296e16fa352985e61bc0364311b0d5f8b17b40eecba6. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c98d977-4f04-4f15-9fa7-9e7fc49fe1cf.json and https://artists.proofprofile.net/proofs/artist/9c98d977-4f04-4f15-9fa7-9e7fc49fe1cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Tango Club Night, Vol. 3 (Compiled by DJ Ralph Von Richthoven)
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 0xbb5cbe9ca7a4adc5b831b32c01d8e26d6c8431d40f2acf5443990f103d4a280c. 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/NLHR31300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfa7383678ebbc67e955384ec958d1ca1ac9fc4a8083a26f2647f5fa43b13db. 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/GRTC10700095.
Tout Tourne - 2 To Tango Mix - Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c0951ef95ff88bb19ab783ee1f54a9f323ee1f5e395779e1ccc9d68ff881b4. 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/US2AE1400513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dfd741d8f1056c2da8113fa59dbe8129b4e43e2c959972210271fac0eb6777a. 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/US2AE1300101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7d895e3652cc8435f837fd4f51fbac92ed443d8a3fe8d63857da2099e2f229. 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/US2AE1300102.
Chair In The Air (Hava Nagila, Wedding March, Simmentov)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ad4b1a27027fd0e54cab2e99d2b90e892928c6eb01327ead288062eca30eb6. 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/US2AE1300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf80ff926b212ae1f1392b9a639a5ba004b7b02bf39ae264209abdb51cb0a37f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2AE1300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370085c9a9cff03344ebb57db27911387c7cc8aad483b9c7763d248e4ed71689. 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/US2AE1300110.
Tout Tourne - Swinging Electrons Remix, Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc98dee6f198f32287c6fab0552bb200ebdf6ed1f17424cfb8af7a8abd1ff34. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US2AE1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x406cbba94f3e81530f793685fe06009df5fd846c0ef9b3cad07f66aab5ab5a5e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2AE1300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71a1535715710745f4d99e14b8009b47207744fab4c5a37de95e593956aea99. 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/US2AE0900501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54805f5afb48c6255523a7f8375f7ac7112c6d34d38220c1d194bb4c2ad7944a. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US2AE2400901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b299b4013376813b91bf51b11c1cae440a733a8a4178c937b0add791781910. 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/US2AE2400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2f747e0cd996732f72145fcd5d2c297da4cb1e46907070e80429d699f59ef8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2AE2400401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7696538fd47dc59958727a5a1bc506a7b34a9df4fdc481f5dab3fb356fb700. 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/US2AE2400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7696538fd47dc59958727a5a1bc506a7b34a9df4fdc481f5dab3fb356fb700. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US2AE2400801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c24f2712e20315ef9a623772407506d5ce8d274106a462468f24637d90789b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2AE2300701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c24f2712e20315ef9a623772407506d5ce8d274106a462468f24637d90789b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US2AE2300701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b299b4013376813b91bf51b11c1cae440a733a8a4178c937b0add791781910. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US2AE2400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5880c16286bb4b33fc765466a3b3afd14af8015263c7eaabb04dddaca7764455. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USAE22400602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2f747e0cd996732f72145fcd5d2c297da4cb1e46907070e80429d699f59ef8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US2AE2400401.
All I Do Is Dream of You - Naughty Club Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62ee4ec5b46d080e27d6e51e4cd32fe902a00e6590707dc959f4f5fe0bfb6e6. 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/US2AE2400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b807a8d02dc07e328817571ed6818a2ebc368e0cb6a20afed9a5d8a38a97e9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US2AE2400201.
Catch the Killer (Intended Immigration Remix)
Catch the Killer - Intended Immigration Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821e75ce4bf70e15b430465e6cb7be4ba109eb7c36f4008e24c2680385a9ed54. 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/CH7812370945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d507ac063632e7ed89cf8868e4961ae811c3ec6a0bc98b192f26e918c061f9a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2AE2300501.
Love Music (Intended Immigration Electro Swing Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766bafc6e46690d9608f75cad570aa2ea320b291b1e22f031f5baeba82a9111e. 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/US2AE2300201.
We've Got What You Want - Wolfgang Lohr Remix, Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111a27f579ce8de10b6a70240aaa4678ce380703574d63b4b7585e67a04097a9. 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/US2AE1500401.
Un Plat Qui Plait (Swinging Electrons Remix)
The Tango Club Night, Vol. 4 (Compiled by DJ Ralph Von Richthoven)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e0184914f3b8dce9e9ebd3890eae3feaa1e4b428c868990223da01d1d0e8e0. 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/DEU231605087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42058518699ccb05e17cb5560532191a1ff371d8deb0a7525164ecb5cab67c92. 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/FR99S0000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ec72249b933a0d3f2c6cecb945bccb49d6234bd5de504b3c22be20bea08953. 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/DEU231605086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13416e3993a6389fc133115ad2225e30fd42b7f70ac723e089096c3de4ef92ea. 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/FR99S0500026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea268fd8ba7a9d1dcfb3baf8c2a226124b33a4c0665e560a730c8ede44da9ab4. 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/FR99S9900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc90235eb0f4ede41cbc7e205d16d5d628d53975716d676079fdeb582d45fe4a. 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/FR6Z01500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b220a91eb7e97edda8ca800a7737246397ecf2f6658023dfbd3e73127d3ea17. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU231605082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa98f816f146695ca2499249f6a406be90ee49f982daf4f40a4c319036823651. 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/DEU231605083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b0327cda9cf2fbe3c67d38a34d8b6a5a0e49718fbfa0f7ce01b9d97656e6c5. 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/IT7150616713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96e359a84acf0cac2df5f2ee7569ea07a0cf9a1be7675dcd27640bdab3f13212. 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/BE6F51500730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a58c43d2c691f7b90c103ecda8b503be749e9d93867884f3f08b8e959120ce1. 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/IT00D1103609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34c083e3a7df057dd28383ed74f8cea17c9da23c587dc42d82d17468e7fca4c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEDU50901082.
United Colors of Words (A Lyrical Journey By Gülbahar Kültür)