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 0x802d819de4bb8531abd7e33562ccc4e89b4b25913b1c9da579d414838a9dd997. 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/fbb6f0ac-ae3c-42a5-8a02-cd0e6bb0e519.json and https://artists.proofprofile.net/proofs/artist/fbb6f0ac-ae3c-42a5-8a02-cd0e6bb0e519.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 0x3c1a21da26cc4180b59a6e17e45df2d9aa227695ed774a7ec248c9145185f1f1. 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/DEE861803820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9db512048a3b62e9ab59278a01d3b486901155fc9be5454039186e6931ef965c. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEE861803815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21a9784641630a1da2dec607ba6c32c4c79caaf4443ea95414d13d5cde904c0d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEE861803002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeaf751e52586bec538238e6211e291096b3ab76645bcae409b7c5c223465d72. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEE861803817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82b20a888626fb8e40ea9cc366b6480338b20c9f03b52d84d989afc162b511de. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEE861801383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5663c186d698df1f9fc0410f07559e451efbaa15c24624e47c832b65404bbee6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEE861802472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36596238eab5dfe065cc4e0c71b7f9696a992b4ed3b097108530ea3c1f8cd000. 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/DEE861803819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1a21da26cc4180b59a6e17e45df2d9aa227695ed774a7ec248c9145185f1f1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEE861803820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf274df457d8e65bc5d3b4e9059bfd75827b252c104c033fe5d1b0340933c4b41. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEE861803821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe459597bb141e38f1d4d96417863eae93dddc4c1cf56f3c4b77b5b4e03a15dce. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:31:15Z), 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/DEE861805838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf9fd10901b753d333ff2319f13072e4dd957729b53bf180a0101c54a114471. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/DELJ82001049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc60d4bac9091a8c4949bcc4ff95c42dd612f4a003ad4a4670c5a68d5e24de43. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:48:01Z), 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/DELJ82026844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x887a2dbb58ffe63428f4134dbdccc26cff4e620e8b2541cd83aca510f66592c2. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/FRX872034891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdabca340ffd8f9225a9cb131f56d8aed0e7cdc1de5d6bbb549131d86b3994fa. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR10S2163495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc7d242f8f01cad895b710755ae91ee28a498c299cfbf93ebaa2f959889b38a. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FR10S2163493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdabca340ffd8f9225a9cb131f56d8aed0e7cdc1de5d6bbb549131d86b3994fa. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/FR10S2163495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc1af8a093a32bfd2edb51b9159edd165b3f348a849028efb42c876feb3230b. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-21T17:14:10Z), 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/FR10S2163497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd324c6ef8fd47240a7f2f1ae8eb79869ba56a352104e6406034dc8c3e5c1215. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR10S2163501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099d8a3b558e44a3f475116ff6251729363cfd39f7222606ee1de2eebe220d21. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR10S2163502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb489c60c6d014628549ad1ad516ce930497aaa932e663657945f04097d3de2. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR2X42243897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451fdf5ad34781adb6284dfeb75e96a37b559d9ed40418fe29b99362a7b6349f. 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/DEQ121320225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a65c1f81e8b0e125320a9b275fe9b37e24fcdabc85943b48cca11e802c9e294. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DE1A42146251.
Spuk unterm Riesenrad (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ac90764dcc6ce135463544cff4686047bb44f96ef59e06659c477daa5d8624. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DESQ42300606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb674f59488be987216ceb0163b7cc0177abc8d05224d88c43df32b3bc198a436. 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/DEUM72410501.