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 0x8d0b568052eca7c68d6abd3125e6f2b48dc35ca97cd49879e26ca3751a1f2a6b. 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/f1350d50-3c07-4969-bcf9-4e9a7de18262.json and https://artists.proofprofile.net/proofs/artist/f1350d50-3c07-4969-bcf9-4e9a7de18262.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 0x45cef487f38ddb7aae5f658b47cd46d87526b3f92627b4e8cdbfc138a6dbe45a. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/DEFN60502901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b7a6d49887ec2226ac485db7c276ed9a52896511235d33650c2a5392cc35e8a. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DEFN60502904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf365c3772ae52cbb94ab91372109eaf157315c19b72431f23e133fd45ea307f. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/DEFN60502905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ebc85fee81faa6d8b66be50dbe19f5f9ac93045e0f3cf1077f986a048f36c3. 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/DEFN60502907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fb0619be2aed1c7dfc66555aead09fc4a8d8f2852c1f329b338b66cf6f5171. 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/DEFN60502908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc31d74e1136d28d44654e382ccbb61139c9e4a8c6d68af6dcfaaf758f55daaff. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/DEFN60604101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9d30914d3ef891139e1ccb8cb8f9973d0381ab81a4ddec018320b531576a74. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), 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/DEQ021903048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7be9017448356b9008ac8409483eff9a74f1aa5bade6e1f85a5e60a8815f76. 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/DEQ021903049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdc20b42be30a130cb201f77de075f5b2fb2d65df3f539a1fccb45afa2a1ff2. Chain 2 (Bitcoin): anchored in block 958558 (2026-07-18T13:44:16Z), 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/DEQ021903050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaff28320e6ed283260e15b92e6c210eb4fcc2405d4650ee2c14fb359d5f856c. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/DEQ021903052.
Auf Die Ohren!!! Live in München 24.10.08
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Auf die Fresse ist umsonst (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4005a3d1eb0fb9584008296ced4feb5e9ee68d33628c67173cef63863d0efb6. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEU601304750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b791af1cad57a837a7a06da19c43e7fc5947db9663b7b8dd5ba54b1d15613. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/DEU601304752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x187512bec9c453326351784d833504e26f1274e0485f30b92a901ced544976a6. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DEU601304755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206b29cdb2fa9baf8b40a011147b45aa0ce8347adffbf0b2abc094e7bae92b80. 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/DEU601304762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x870943dba6a5c2611347738cacc2950dcc60bb377468d0d01a8de2267f6cc2f8. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEU601505892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c2fa15d16338eca6ba205ca533821bc40830483569cacfd1fcb691ebc51eea3. 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/DEU601505897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd794cffcf1d058f3f6a41c77726bbe1f2ac92330f0e7872e1b819238af723f3f. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/DEU601706911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4654ecea1d88f51fed6f4a8255f9dd49e4995d1ccd84578417d6c34235745732. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/DEQ021801893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853f5261003c00ead92b486507405a011f8431496e6166e95072ba2b8cf1b735. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEQ021801900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa900872f429947fdf8b1fc26c508e5a4fc8cf0d6dde89b5aae57b91d2b3b1120. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/DEFN61110004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5f9e630f8feda2aa2c807a869cee8b31f58e03200fe790934d6b3d3a92e3aa. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/DEFN61110009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef190992d54282ceaa4782976c86deef8aba349f4e40da3481733925dafbdad7. 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/DEFN61110105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a20b075700990f52eaae685b8ec2f8f4344c510c31960571e5eb389b20007f. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/DEQ022005748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x875f61b5eafa742417c9230e2bcd702177f26db8912e5d0a3fbd2b1e77c95cb0. 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/DEQ022005749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c84f77fccd441a05d28808efebead66b2a2802d443a7b3b9591cb5fb185705. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/DEQ022005751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e5f1675e5ed3a5a1e46cbcdb45e0289e989ee385af484f63b5062811274487. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/DEQ022005752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e0d1b40547626de7095f820a3e6fb464682b6899b30eb0d8d3f849c7a27b17. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/DEQ022005756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91f2f4db4910d1cd8b534e8b3dda5f369e95f45cabb66978539f531104f1b0d. 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/DEFN61110005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7127dbd00e7944676bb992cac91a4294bcd7e6012f8c8b1a8c501bfacadd17b. 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/DGA082479419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c11624cbc846b118902290958441f148a9ee69a31297be6f657d174bcdcc831. 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/DGA0H2424069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1047826d210b2d7054775868ca80db12b303049ea742ba45cde717cdc441f4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DGA0H2424070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5989bb69890436eef2f9b00a82736c3fefff45a3b456ac43d9b47ee90e901d7. 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/DGA0H2424071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b7a4e9cd3e3b001b0c4a822e48a677bfb1c25f5695bfea539c9d3c0f26e09d. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FR2X42480732.