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 0xd01e62ee007476e8606a93d8c3d784d1d6c2ebe7133ff44d88017700ad68e56f. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d7d187a8-f1df-446a-a3fe-963ba319534c.json and https://artists.proofprofile.net/proofs/artist/d7d187a8-f1df-446a-a3fe-963ba319534c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Wasser Im Fluss [Mixed] - Soulphiction Remix
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 0x51c6a34d3a1ca4673f1233f203416b0efc83a860338460817371a601c93b397a. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/DEU672200558.
My Grandmotha [Mixed] - Farben´s Hidden Diskoharfen Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec16ba2caa5003b0968b0b19b46df3555016ad27f837942ec24b99efd22cc5fc. 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/DEU672200559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76578cb2f748fcdaac3660e40d736ef2f5455fac188c464afaf9fe3aa7ff6867. 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/DEU672200560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15a1dd1cbd8375ca88e1da75bf8dfe738115b87a77451c86d356fcd59ea91e4. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/DEU672200561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6932d0651f06044e3b238857ef84d9bba2199e18664e307b1cfd72d1c7122498. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/DEU672200562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b13a25892481a6daaad9ef8c0d566b72ce35fce7e19a8ad5f96d0a134d9c57. 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/DEU672200563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6736e80b88a80e5cd653da846354f60dec7b5b0463392922affff8c41858ad4e. 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/DEU672200564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38dbcae76e0cc9ef8bf75340988cb1d0fad7ac34e88071038d0c98ea9e80365c. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/DEU672200565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ccbe6854421cacb579001e36e4f80824c9461b0e7b0ae5fd656068337b8db0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/DEU672200566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef69b28a927d05b0d9649c020d9ebd52750d313d04620abde426a0b90a884678. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEU672200567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c5945ce10d94200908f9f7f08f449d80d55b398098506e4cd0663cb85cecdf. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEU672200568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dedd111f7eba63ad383f6edc66ed3559139b5af30a4bbbba2112b94bca8b409. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/DEU672200569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4a512742998f459bd9405555cf35e31e51f2b0d9b10f737f954a7dddc57ea1. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEU672200570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8232ccf9c14df6ac4c338818b874a58e472c3d1f61a3fb79be5b90f365b045c0. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/DEU672200571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a5bb2110fec7f59d358ac24b80f651f365c8c69defc5f5690e8cfe4e95ee87. 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/DEU672200572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc10a253c3633087eef6b60376654469688980b18b77e1500ed71aaf4ee1c378. 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/DEU672200573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40705d28af44ce47a2300e16157c283403d1d0297620db3c361511ea2a64e391. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/DEU672200574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d303805096005612a687e9beade22b0fb1d05a8e7b19a6350a49220228ee237. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEU672200575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66cf8e135fbf64f95bcf73b7f6cc0d2fd4f07224de41b0624c6c8c9eddd3c071. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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/DEU672200576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9b3f756eccb2b846847ce9918a4b69ca8615ee174fcbd397e95d7f5e4918d35. 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/DEU672200577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407d76941adca91dd5d5bb4a3ddde61773406c108a81435ad18331888b86ab73. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEU672200578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f7e8ebc0e96f9ba49480e2ac766be2b1e0f6fb910d41e80619ebc038f7197b. 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/DEU679900047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93be875e9b64160902954be288cb1d16e2e0977aa2031cbb5f90164fb900053d. 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/DEU679900045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0f96390d4c1edf3f10507b045f6666dd9a142c59b1a9ad2d02b4b53f78341d. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/DEU679900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe931d345247b914d6925e16a8410c6cdc5b328f4a50a0b846ee34d7b1cc29c0d. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/DEU679900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789c5264190267a74943bd644dab81c4045bb731c5986f7be8ad997a41c51b8a. 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/DEU679900044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d38ba66c95e9f44fcc22148ce472ae92c4ba157afb2ae3c25da642c6ac5c94f. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEU679900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef778fd0bb44a523a3ead59cb31a7c37ab9b6b36f8d0e75875677d5e3146053. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/DEU679900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e9a0c25d2d72f06113e67db169558c964c525a3d57c526c690c6e5e672d252d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/DEU679900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe11980f73b07c0252847c2ec57ebbff55693a75aa600aa23f398c43dad499767. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEU679900066.
Dial / Ladomat 2000 present - Hamburgeins
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bb489f630769e5db231bee8a0ed0d9b45e512c58bda7a9f745ddcc92badd42. 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/DEE460600405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a38b58efc6fd89a66a404cd80a3760b375c631b835d95218743e0ffb763398c. 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/DEE460600412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13e7a0c6eab275f3c8244ecb031f03a6d3e61f9fc37afca9500dff5ddaa7066a. 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/DEU679900035.
The Morning After - Steve o'sullivan Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3ef952b8631feadadc027ff80282ed4cc670342d1aa69da953ce8b0dedd4c1. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEL020120043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcfd1be60f45cf42b7497524962ee99f5f3db1f32b8319deec1a4a90cb3a18e. 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/DET720200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0c0f5d81f84c32436f71ec5544d70e3909fdf9e9839c1613bf6d794021ab5a8. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DET720200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb0d7526c026838ec551dae51bb95d754f8f736e788da15d1b28f84d8ef2894. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEBT90800056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6195d1761307bdc2849bbe74c9953b582f2c4361749d44cf8932ca68a829b8c7. 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/DEBT90800055.
Poker Flat Volume Two (Live Turntable Mix by Martin Landsky)
Van Czar Series, Vol. 11 (Compiled & Mixed by Van Czar)