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 0xfe8952db727e7abba6de53709da9e7f66b6a14c2f6d0e2934158781aab3c2669. 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/ec9020e4-1d68-4e31-b904-a6efc132089b.json and https://artists.proofprofile.net/proofs/artist/ec9020e4-1d68-4e31-b904-a6efc132089b.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 0x1d59e14ba00a90b86a54fb617730e88b01be33d6b81825400030c942a7889b58. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:10:09Z), 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/ATT251902270.
Schenk mir bitte noch einmal dein Lächeln
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abe7f7cec571d1a2187fa32883977b698d5f5581bc8b863e291e436c4b3a269. 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/ATT251902330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3bc3419ffbad64f1abe560f4d9bf21bf537624474ac694bd9c218c098ba241. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ATT251811350.
Boarisch Medley: So wia unsre Natur / Liebe die macht blind / I will nur Musik von Zpur / Druck Di zuaba zu mir / Hans Kröll - Boarischer / So wia unsre Natur
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08ec0128170e1664961efb0d732beb5e75ff709cbd4e0477de75c00b7bee5c9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:09:34Z), 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/ATT251902370.
Die Klöpflsinger - S' mag net hell werd'n - Der vierte 3 König - Mander wos isch los mit enk
Heut ist Weihnacht - Traditionell & Echt
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633875f10f73f43db7151bd0d0b99bf950962b5de8362d4106c70924888cb055. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/ATT252113270.
Schürzenjäger Jodler Medley: Ohne Musig geht nix / Die Berge, die sind mein Zuhaus / Ich geh so gerne aus / Berge, Täler / Solo Jodler
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8df4210a8a46d555954a6db288773ed76bd5f5adbf25808479c618d8f1b5a854. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:26:43Z), 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/ATT252113300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39f5f4a62f4a66f1308552ff9bd0734ca7403a3f86ffbaefff2750f887dc521. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ATT252113330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b38da12638e77255d23df03a89e758d227f43ce884456df279dc53b93a3253. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ATT252113340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x982c3de35eac01840d3cc1d12be7e49f6fbc4e5399939ece68ba04a452c7a169. 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/ATT252113370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c13b08a1403c7537b84db3ef8b0229b5e07d2370e0101f45ec3361864536ea. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ATT252405780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742c1bc968ebfeb6bdcd3ed3c17b32d6211bbc5ffd3ff2cbad093d0f75704fab. 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/ATT252405790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd0fe70f4c3eaafd2ef0bfc8cbe1f9ae044c189334568925601e01d3d9fc663. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ATT252405810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e85102abc1e51acb62c166018e70f701652ccdd45ce476f3779d02eda3573b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ATT252405820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44bfbbafd7527851234b0619838780cb85c7499fbd91f152d269430d42f9d34. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/ATT252405830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79b9ec10fd6f47db91d7da7b260cca92e2acf7eb132273a93a63bfcdacdbc041. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ATT252405850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5fc9412dcb6da8e98efd7657bd531c2bc3445e22f4112577d433a5b6833f2cb. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/ATT252405860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884dcdafdf8ad32255792cb1d811572c472f8cf3bd095697eb4f24f31cfd1cdc. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:35:21Z), 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/ATT252405870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b18060f60c8d3973dae1c553b689f9be6da48d2935d81543758ec254532981. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/ATT252405890.
Oberkrainer Medley á la ZPUR: Mit Musik ist das Leben erst schön / Mein Mädel aus Krain / Hallo kleine Maus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c748ef18bfd6cf80d470cc05875c11262878aaf50834261745421d372177f29. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/ATT252405900.