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 0x94a648c242fbfea454a003a074ae307398a2188f752063d7d277e5b081f922f7. 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/58e1efa5-3596-44d9-9755-2033af4e460f.json and https://artists.proofprofile.net/proofs/artist/58e1efa5-3596-44d9-9755-2033af4e460f.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 0x4469812eda3417d8406c69a97c641590d2bcde334a4a36fd218419f8002a3e15. 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/DEBT91500150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082357ee14b07bca4b48edd6b902f5e51938553e6522340ddbcd03ea1d9f414f. 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/DEBT91500163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fba36a8cb27b63dce912b6b3360d69016cf42aedc2009213b2afe02a3f1e958. 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/DEBT91500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20372175c90a8a9281e1abe8a70d39d1bdcb61214df8254ec31d22efba147d5d. 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/DEBT91600164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f084305372499ca89d95ba7085aa1b88eea26bb60eff2c9d0b5009dac22f77. 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/DEBT91600223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb380cdb41767fea074ccd3393ffcc406035f8d62fd4c73ddb0470b8282420afe. 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/DEBT91600226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61caa844612a675dce1fd7c042f47cae3b6f9fc3c8c5c2c485b2ee8da618a778. 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/DEBT91600228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc221d1b52dd61482db71ebe48faf3f50c89c75076c5f773d2274f7807d731c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/DEBT91600230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5867bf42d730773a2ff981089804a94d7b1e057d73603845b6500c27d79b363a. 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/DEBT91600231.
Perlen vor die Säue / Das muss eine Demokratie aushalten können
Das muss eine Demokratie aushalten können
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe45085521282bbb02b4097d3750933ce722f1779fe3dc269a6df8b0b067993a5. 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/DEBT92200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc936a268e1ad325fbf849cb329afeaa07d99e047d95ac6f5343c1f992986bef5. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/DEBT92200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e08d49f753988a9a7f245495b8faa4007b977239a398f14e4ddf4b0987b857. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/DEBT92200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4728a4e348af7e836b60086f73695a1716ea9dad7d0a882a5e6190e508b1fc7. 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/DEBT92200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b29b78bb6d1f21c3258994c4d51047bb340ad7cc2ca3f48dff9efd622ab746. 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/DEBT92200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513dbc093241f71239fc85c26f9af4c8099636beb632640e4cacfd8a4f76cc7e. 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/DEBT92200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe83b02052cd644c04f495e6507db65ef6321d92d2b04d3a0be908da48999f84c. 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/DEBT92200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3df2890a32003ae6861f647d5314855e6f61f6b020db83abcf6a782b8b4e5e0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/DEBT92200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90214548a632f75b5694ff1d42923a5cad9b242ce41915fd7c23a4e6e6dedc26. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/DEBT92200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8760d8cb91a61c3c81103a1566cc96a491d4b8deeb4436edd3dff295e3b4e2a. 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/DEBT92200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76d3bb7393cdbdb640342e45dcf1446c083a498ba624d3343f59c2875c41547. 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/DEBT92200028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11539c36651688704691f0c0ef2e2102c75ed8b3cd36eb560281809067e3f872. 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/DEBT92200289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf16b0b50aec3c1d2366f0dddbc85657c2362ea8bd4e506644c4bc429b55c4c. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/DEBT92300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf528e4a8b4a13d82a2923606192e746feda711e6ff511f8706aa15339501cc3. 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/DEBT92300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90e965edbe6679e6823541a589a92c05aa75a1873c5cac49c56d1fed6444efc7. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/DEBT92300042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d0681c73eaba1c0563329772c13d027f9dcd2c33d4d55ac4f63aefc3a131805. 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/DEBT92300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe175ff203c1659a80ce23251b81af226701ddb99f96171241700ef3e837cdfac. 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/DEBT92300031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec061f0aaaa58160f543cfe467ebef38f00fd88ee8b93249315ec650f68bb95b. 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/DEBT91600165.
Keine Lieder über Liebe - Ulliversal Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe71ed90b01db545f132458edc0b91a99149466ee508a919e9587670c0c1459e. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/DEBT91600219.