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 0xc635ba490bd87a024c8f431b58ea813d69f32e7ee77e5b436560dc30f6bad9f9. 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/3cc96654-044c-4815-bc94-00d97b73449f.json and https://artists.proofprofile.net/proofs/artist/3cc96654-044c-4815-bc94-00d97b73449f.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 0x5fc8171d7e6b3b5e695b4b94da308e5c38f054db1bbaf27bad4e5b244be7fc15. 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/GBSMU2663243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ef9b25fe1fa8fdaeaaddfdf3d898a9c899a678c39f16e30ca877b31480ab269. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/GBSMU2663299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54804a38c1c617019c09710ddd9377912aadb42ea94279aead00977e87a54dad. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBSMU2663300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x669c0684d73f71a87f12307d50bb26cec27c2b9325d1d36f1d11e9213583dd2a. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBSMU2663301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0826674c316f6520f73da6530d2729196c747e12627ebd2c5f2387a9b24e41f8. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/GBSMU2663302.
Frei.Wild ist scheiße (Bierduschen Punk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd8dbd8b4174c52f00277e2ffa62148653a5a3251a26f8b885c4ba9e616a9a8. 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/GBSMU2666064.
Solidarität mit Israel (Bierduschen Pop)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf368f6ccf7b82aeec5ccbdde213ed0e5f67cf947085d70fda1ae70dc08fbda42. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/GBSMU2666068.
Album #4 - Deutschland, du mieses Stück Deutschland!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1919f3017b06f2afc405bb18ab2d1db36db523482b373a0a9e8ad3821ed07e8f. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/GBSMU2722487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339b9d620ea86043cc64dd2576f96deb0f690c37d838386caefeb4d49216f66d. 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/GBSMU2722488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53c2c2757024ca94bb86832576e5372865a3ce4e5cccfb7e1f06bb91d00e4320. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBSMU2722491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c4056dd29d9319dc792633938c32410aeed3f03f2078b205e5030b2810f4a9. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/GBSMU2722495.
Länger Als Wir Lebt Nur Die Pharmaindustrie (feat. Robosaurus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bb2a0f7209594b69c785ac77f88aca5633b1043c7c1ac1692dc3d13d70e3bf. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GBSMU2722496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983887f918f8a31f849d8eb6dc2f96f7dd8c84b32e5a606cf89709f80753bb18. 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/GBSMU3600314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5fac162440495dd181dc2a53d1508ade50d35a6bc48d9fdfeff81033774871. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBSMU3600316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cea5a4ecd20c45c9d8c24150a796baaae5cfeec33051cb8f784d7deb2b406e2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/GBSMU3600317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ec5dfa3b4410d2c6309ae6fd691ae2a0911813afb78fcf225b4ff31af7d8c0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBSMU3600321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed0eee2923a9ed0cc796e43b4a971801929ec34a50a7f69ee8a48eefb1a09cf. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/GBSMU4608067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb4cea547707239648da3401ea6ba350dfc876b7627f6704c93b8b37d4a00bb. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/GBSMU4608068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa801b22cb2862b4e08d386d97d29fe2bf2d4bb479970677b76490d5ba26372e5. 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/GBSMU5637192.
Regenbogenbässe (feat. The Tote Crackhure Lulu)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e859444a5eecfcd7dd2c955a6b926e18d59593c06ea1f44a3e55b85a81185b9. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/GBSMU5637180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09b4da6a35f700cf538bc4da3a5f15fa6afae45a31ebcc76eab32531b797d1c. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/GBSMU5637188.
Scheisz Auf Arbeit Ich Will Geld (feat. East German Beauties)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f8d2faa1983139a37a460e1f677313fd7a362f82f2affe8a988b1c7a619525. 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/GBSMU5637190.
Für EP Bisschen Lang Für Album Bisschen Kurz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695d5f2edfedd7dd84ba5c69c7bf3dd205901be116990bbc6c984e04a2d268a. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBSMU5922937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab354e8fa871e1b41806c173cbb231e0e57982cd84a13b2f417ba19a44d2e9f. 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/GBSMU5922938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050036d2c667161625612e988b180f1868ef928849c6ac7cb65abfc8fe015d2b. 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/GBSMU5922940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1295a5355ef843c52b46548ad3527a89f3f3fb934c2abbc43d2b33fc06c379c0. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/GBSMU5922941.
Album #7 - Ravepunk Ist Scheisze, Wir Sind Die Beweise
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddbdd2b4156f2278a7708f930907430c6727873ed39b728518983e189553af2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBSMU7433703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5b9ac51e10ed2e7a86fe49e5a750efb8f3a79a1b60f5f109addeb22edda65b1. 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/GBSMU7433710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf57b53f8a116f48e7ce154c48f156c04a40655ca85eb1b769df365a5acb2289. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/GX8LD2353405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacdeec274162246fccf0f6bac2a2beade30aeef5030469661132994b52140f38. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX8LD2364883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c2a86fde6db6bf60ec948f622271cfd96137fbd77b1853d0b5f43893d666c7. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/GX8LD2380199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f4c656f8245230deb71c8aaddafe6204d81b294c12eb2dc3394d3763c3f615. 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/GX8LD2300850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ef4299471c210871c4cd74054bef4bc027e45db44e6a449c85eb35fb5d2c04e. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GX8LD2319370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cc42b51cdd3625682bd0e531d33ff8746cc1f2eb491c94b995a275b60ab100. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GX8LD2386301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf8df6b30e809e88d91818a6240329e3c08011bf57bc40f8341b2c2dcbfef20. 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/GX8LD2388723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29495c7021dc94bcf135e158b1776fe68d1f7b1c640e7239c4716bb2048d16be. 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/GX5MX2475457.