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 0xa2c01f636f050dc369f933301fad06a5a84bf1df3a7ad24c4cb0b5021f078c2d. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8cb13db3-614d-48b7-91ed-a5ac1c90c9d2.json and https://artists.proofprofile.net/proofs/artist/8cb13db3-614d-48b7-91ed-a5ac1c90c9d2.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 0x0c466d2d1903a1c0512ccd457764b0c37d57e35dd2e80fe77e8b2b6ab09cb2cd. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:51:27Z), 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/QZHN61951835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb8497dfc5e89cd68d7572ee8fc823de22bd48848fcdce140d18a7022ab77dd. 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/QZHN61951838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f306c21e2b4cc38fc2537f819fef5ba61dc1a8281dbf356a44f1cecb7f5c00e. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:27:26Z), 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/QZHN61951839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc56cc87a98c46aa39f2b3f8a68c1fa03ecfa785620f66601be77f4833fd8c5a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZHN61951840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d029bdac1aab4efe5a07557ce3fa7ba61aa8692858ef121b9c5cdcfd1e2a69. 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/QZHN61951841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169c7f6fdb59e9782eb057205da2024349a5c74d812671cff4cd755f9423f96c. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:02:49Z), 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/QZHN61951842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08a98aefb588a005a3cc1dbfd29afdc183f5c937cf3bc8caf581783d93c52e33. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZHN61951843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac58a29f5b891bbc098956bc1e1bdb1f594edc9cd7f873951fbdd5a864093a7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZHN61951845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7597d57a766f37b987eaad7682d839abf7faff6e83793e66502b430c87cd0f6b. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:10:22Z), 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/QZHN61951846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef51b5861343f1152692e3e031c2f9f233b2f706217a8c40f53e2ce398569784. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/QZHN61951847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda51562c2b6708714ca91e16a15b8af69fd705df4dd2b4fc9cb83eeb88c3bdef. 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/QZHN61951848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf287974aea675bee35c817904c7b300a0dd1c0328de5e4b39352e1ed2714e8b2. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:03:31Z), 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/QZHN52005956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbb239f59929f6aaf0c792c764db85cad6843220e3bf7bcaaa95752720430ad7. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:15:06Z), 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/QZK6P2070570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53197e67b4101864e97432d299d87ab3acfb1c995e017ad2656d998a689ad9db. 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/QZMER2024222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18dbbd91a180977533048a4e57649a3e2a13ec144981368775e45dae576c89a4. 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/QZHN62141190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba6ed16c5b95800e166f8e93f33bf5f0fa58e83c9db9b87a9f13382670b8036. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZK6K2199920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33d340466a7e6586e6e203c82145cab74f7643c70f05dd3b765f3b10c36376a7. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/QZK6K2199922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043bc9f9b5698557bd18981ce2cef3ee776722a53bf0de8c6316bb72cf881310. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZK6K2199923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x202d485fa8da0346adb308206dcbe618b0a0296aac06db810975f9d09cdfc6d4. 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/QZK6K2199924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9de70f0f568fd1249e122280312e69ef38ee6248edf0e1df92500537d1151a2. 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/QZK6K2199926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38ba945797c7c42f2d4c812f3b2d48ede0544cfa8c783a9c00d8ad7325b9b548. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:03:57Z), 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/QZK6K2199927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ade0e86728a4fd1bf0871889029878d5556b0d937109c4e46af728d387c568. 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/QZK6K2199928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3374bd645aa00f22b4dc07393883540a667019921d77b353a6573b602e764f4. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZK6J2100862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f35fa97b01cac8cfb1c977b36a891fd6982b21c3e242e8c24dd2bfb82f0964a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZK6J2100863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279036485fb87b377f2dec51935570b780fe2a3a519543b521cd9e790e6dfbb0. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZTB32281888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f9cd992a264a7668c8ef1dc2cd6ad68680f97c64eab595298bda3adb484944. 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/QZHN52337791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a77fa00cf70e57a7916200ce0db398e7676414fcf6f87d6a6f5a5174e6a6279. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZNWS2349947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7438bfe3456ad34c1ea3d8f757fcfab35911706a255114b197acb0335e4a4fc7. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZTBC2380583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047354bf4a5eff5360f74afc2f0304dd865dc62eba23a1c568d140eef9569419. 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/QZWFK2300801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa85045f47052e1eef636156b63e5b71ce4ea56d0fa31691faddfae6b902269. 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/QZWFK2300802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d2700034cf69052f6ca1d1428963fcf2409b0008821485295e34088ea07df37. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZWFK2300803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2b7e27dadfafeb308bbb8fe9021b527ec1738ae4653f8451ba98d73229fd75. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:12:00Z), 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/QZWFK2300805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9d0f01a717b3005eae4897ae450afc6897b22413ff1365453c341423c0b307. 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/QZWFK2300807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07daa5647a17f92a85df21809785915301218a4cf54b5e50ea65d8e153231a94. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFK2300809.
You're Just Making Us Stronger (Resurrection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb600c93cccc49a557016961f76890b8e713329b4e45613ade9f8ac6527088813. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZWFK2300810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b830bf66edf5124731c00d368642268dd1557cebbe4d9771922e51f15db604. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZWFK2300812.
Heart Of An Artist: Resurrection Relived Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849c56e897dd1612914d6932566b6be6c246d571bea3380cad094532eba33a92. 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/QZPEW2473666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e218a3cb0ee76d66e2c55b95f162829e3b96c1efcafbfa065f15b6de1b8f21. 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/QZPEW2473667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124de124ae710155d9d409522c793b4b3cd131d1405f7dc8e38bc9fdccfaef9d. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:42:42Z), 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/QZPEW2473668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa55b3dcc08a13a19a0df4f992d3308edc561c475539d203f849b39525ffddfeb. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T13:00:35Z), 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/QZPEW2473671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119aa4a80b1ad213eef8d2ded9bbc934d4a5cee42814f1f364b9f53b1063199c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:11:46Z), 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/QZPEW2473673.
You're Just Making Us Stronger (Relived)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119f83c1b7334cff40dcf38af941551f1d86886496b854a2873c8f70494f0f0e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZPEW2473674.