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 0x48a45e2a8ab8bde0e0301bcc68d433bdb1e8628f8099ec708c178916435f20a0. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/153156a3-7f0c-4df7-8349-5a75cb2c4098.json and https://artists.proofprofile.net/proofs/artist/153156a3-7f0c-4df7-8349-5a75cb2c4098.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 0x1c59b47d2c3e765169c669900aea186647268f6168345811d3446a422668950a. 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/DEBL60805015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c878858b3a57946fffa3610d0d4bf004745c0a2833403df1bafaab71240704c. 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/DEBL60805023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e9b28dcb418aef164be3bd7302427c9d06cb100d6029515d9189207435d945. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DEBL60805028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b84877d2a3d42dfbde9470b9c9773f930e98b528598093bc7042823e71cf11. 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/DEAR40917180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa203ea4b25b6a2465b771d76bbe73180b65a0416263fd50e7be5706dde100e97. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR6V80988267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234168a88029151820e1f096df341b166e8866003e00fcb7895b050135dbc07f. 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/FR6V80988273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dde0d01835aae7e627fe764366d7d79242b4117f7477377a684019770c52c97. 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/DEBL61170670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9673e687832eb5c78e3ac38821c162c61a3b681b6c35069f433a78bfa326409. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/DEBL61170673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf757f2dc19e0c5df98c7378e18818dd2a57473490e41f0f396f7162e10fa0335. 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/DEBL61170677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2abdadd6e13a17e431748444181fd15340c794d105c302b8bb31c1c4de147c32. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:37:31Z), 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/DEBL61378732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53200c1af14e067f32405a9f06e198bf74c98481cdf3fb68661955ef086cf3d0. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/DEBL61378733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb798b4ba513c1f2005e907a9e1e7a844dae200cb567b745987c83bb24deaed9. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:52:54Z), 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/DEBL61378734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a82fba23b272edfcba67e51dbb8bde7ae1cbe5ddfc8b01d5dee4ff5af6a34e. 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/DEBL61378739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbc9fe380657c658045577c9656115dfdef73c3ed265bda243f566ae8e8d8e7. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/DEBL61378740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27857dc18b04aad15d67628100c6223aa9f44ec4171599764795f08db2e8c6e6. 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/DEBL61378742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72df63312a1d7a96aba679ea6c4b90de185c4e1e075b79ac76fa38b0526e9541. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:49:10Z), 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/DEBL61378745.
Best of Ingo Herrmann (Finest Chillout and Lounge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e8a4abd7a46061b71ea9402a87e3aeb84f63a8fe62f9311926d5b1705e6c001. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/FR10S1456567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb11f7e314961a71434f6b480d6246d18132a76a12bcddf56a61de681f19a74. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:54:29Z), 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/FR10S1456568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dc0a79a2de92e54c6a67df765ff40baa15a8f799bfd03a75ed7194748099e05. 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/FR10S1456572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada0a340eeae946a29c8789e66f385511dde9028d91c193e7c3b84efbb8b3654. 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/DEYX82164856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b68fd19b176b4f69516a39bf5f19ac12da9ce022822f682b77d3372442b515c. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FRX282429717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1256e65e369a48f2ff1dce019ebcaa7706bd5115e9637b103673292ad86ae9a3. 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/DGA0L2460152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a3a6d9f62cdbb77829d015abc9691d879ae7b9143743683c299f9f98bdb7b19. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:41:19Z), 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/DGA0S2427102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d40e0337b2e1c5f837fb6880cefdcd7892da32f9405565aae19732e0ad2591. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/DGA0S2493546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x159eebcef2de2f013eef318d4376003c23223ef1b517f3413ec20038836fb3b6. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR96X2515062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9751449c895e1e1d6b4545e28fed5594d4609fa3073d5f1143b1783877d7de70. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:38:50Z), 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/FR96X2552282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f51450bf4c78ceca4345b496b5e1fa4ce4a32b275ee0a9d68279c900d6127c3. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/FR10S2529083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a534a8e7e4c0614f482aaa4a4bc68352a4e549ba7831031dd25dd0fe1ae1e79. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZHNB2589262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d43c545d1310f7202759aa5b99f968b680f0b12a4e9aece53ab78e7515e724. 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/FR2X42587994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e973ac6e1e9b55379bf5f3b6932c98872b11c09079723d6e405749e95a3760d. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/FRX282532176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e0ab52f2982a4ea3e44b5a009e8271a371e218ea9f338a647fecad9d295c1d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T01:56:52Z), 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/FRX762523344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e23a0492583e3ded832f5874b7555ad899e8efc469443d207b9171af680742. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/FRX762546515.