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 0x92ce43a33b5d7af2acb070dee689bf5eca8c0e1b67f15cb73a6a9e107b1dcc93. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00968df1-6363-4c30-993f-cd654b47be4e.json and https://artists.proofprofile.net/proofs/artist/00968df1-6363-4c30-993f-cd654b47be4e.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 0x670a8463215894675428cf148a9ec74896ffdb3ed286b1b36d7b6699b91808db. 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/DEA621500551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd503c2d23c551138b222d08ad43ae0b5911e3d4e3aada89a883cedcbfb81960f. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/DEA621500552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3521cea5c8771ad1982e221634e68f0f9a399cc418ab7137925ca87b0cdca1. 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/DEA621500555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f2915ab80b5116c58c579e90cd8c8b1dec01b781697fef55f3bc05d01ed8fe6. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/DEA621500556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8cdf40552ff67922144f4426df0f02a45788b0872548cb31e1ad0310d93e63. 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/DEA621500557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef58f14286b7b41e33941c889331816d993799e7d1e86168b6a16d4bf036a012. 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/ATDJ91700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecfd2beb6e1388801dc604db2dc6e038893e4a2dcd61352d63382664eaf4459. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/ATDJ91700103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd377aacee46735699a5b34f0638d66f01ada09241d963c3630d254c4c53dc8a. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/ATDJ91700108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde536a47af0fdff617469ca315f0e26d41efd034553260e5d0db1c732d090cf3. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/ATDJ91700112.
Heute fahr ma Polizei (feat. Paul Pizzera)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf19b1b30cb209e4621403065d3665996c1db967c6671a7cda6ee0e0250de172. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/ATDJ91900506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3748ad428a018a5db01f5fbdfc1c5d3fbe55dfd192a7dbaa46a1aa00e06ca480. 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/ATDJ91900509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e77c142541dd6ea96c29f5cde80e209ed4c39de69083a1898b65df585aa8134. 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/ATDJ91900510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5dcd0bb2eba0864ea1b565cf4a9a54c2a852b70c24e20702c4318d1543f377. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ATDJ91901001.
Schiach an einebrennan (Bierpartei-Wahlkampfsong 2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ac545457f3b50771152e0cd9857f7021ab898523dea1740fae9342cbe06d9b. 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/ATDJ92001401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61904b6bfdf6cf2110b00945d3915d0d9ac8cbbc0e60557755893de65508963b. 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/ATDJ92300148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ece808d4bcf8fcda62a038e650db9d6a7f692cd9948717f099bad62a2c9f2e. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ATDJ92300156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9064906dd12ef4e1de377313a078ea9eb8d713cee919ffff54ec8de0023e8839. 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/ATDJ92300157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4bac751561bbc9924d37b88aa459ae8ce3ac5f89d03bf2256d5421aa1e66357. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:03:04Z), 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/ATDJ92300158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0c4bd49304e675faa0caa89633df80b427704576cc52406601712be8a07689. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ATDJ92300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1bb21ac506b8f1236b1b69dbeef00f51c2a6cf0925b2fcc869f86e132e879e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/ATDJ92300160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1263bb0fc5ac4dbf49b12da2fe62cbee804327741e8520f7ec165aade2ab432. 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/ATDJ92300161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd393b69c9003691338f72918be570f61e8f83f9b2de2610df134f2744ee3c223. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ATDJ92300165.
Das Schlimmste ist, wenn das Bier alle ist
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68d8c50bfeb52331c779a866c30da5a23a695f9b2260de08f26b2783e16879ee. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/ATDJ91901201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30eb5feebb814b5395825b962a68bbf0d7952a556d7f405919e0ac7ae1f2b83c. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/ATGH42100031.
1000 Jahre EAV (Lieblingslieder aus 1000 Jahre EAV)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799b70d3089df4bc00a84d95c83a0c390a689e1e6c6c9e79578c22649a817c1c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEA811900618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e06cfd4cdfbdf3bb0971a051edd5a4607e02281e16607c5cf17ea027a9c5b04. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEOV41900876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1afbe4f09932e11929dd298204978b6631251fc8f37f79178a5443af0c2ec806. Chain 2 (Bitcoin): anchored in block 959132 (2026-07-22T13:20:46Z), 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/ATDJ91901203.
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