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 0x6dd435ec5c53d6fde11d8f0dbc199285879ef2caa37c70f0f4e3b38d525245fc. 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/1e3fedf8-1b7f-4db1-a126-63d3f1b7384b.json and https://artists.proofprofile.net/proofs/artist/1e3fedf8-1b7f-4db1-a126-63d3f1b7384b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Zoom - Der weiße Delfin: TV Episode 1-4 (Das Original-Hörspiel zur TV-Serie)
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 0x62a824924a1ce4c32d2407d38d3978c2a4d14f1f0e08bf40418a1657678c01df. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/DEPI82501218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44dab98bf8c038eac3130da7cbe5ace5b68cf67ec6b7a8c2a548e3716abde68. 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/DEPI82501219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4762e960b23f1734e43705609dcfd758032646c91184324b4fe359cf58403441. 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/DEPI82501220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6992e5e90fff9ccaefaef2fc6830819056a1616ae4db54d78c41ea1b5bcb7aaf. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:02:07Z), 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/DEPI82501221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9cb4f9557a909509a03f02b5a7ae20d9e20a53ca714614294ef1d5a86fc821. 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/DEPI82501222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b152d3b9af9ec689f3c95a5f2edea857dca2206ef25b1fbbbf6a5fa4d2754f7. 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/DEPI82501223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d6f301cb3b2bf94cb234a49d0f26c950fd56d9ba7f01ca374a908bc1d4a5f7. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:15:47Z), 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/DEPI82501225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ea9c092f145047c03cac53c978d6f8a4c5610c8bac78a9e8c07b1cb47d46d8. 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/DEPI82501226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7874312e430805b853e8adfe4815c17e126b5c27110e585d771561570fc338e3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DEPI82501231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e479345b6a7159697e20ea3c2c1a22192a43b7cbc1a3424481ef09e01689b50. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/DEPI82501233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115746b7af75f9c47b0054aa3a9bb62f9d4ac560c34daa5573135c5ffd98a5c5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEPI82501235.
Zoom - Der weiße Delfin: TV Episode 5-8 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 9-12 (Das Original-Hörspiel zur TV-Serie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2aacda5f6c833ce15dc5938e4e8c937014c5b9acd4fa787da729b7c5c113618. 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/DEPI82502112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70db4632beda149d425e4e913aab5ef86be632e69f26f6e97872f1dfd29cef5a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:56:23Z), 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/DEPI82502113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559f2cf7dbd457a6af5cc8b2a3e33f40b0270c47ab569a20ed24df1f8425a468. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEPI82502114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ab3fe2c40dcab96628967aef33d9716de5d56c0c63c8ac5ce789dcfefd2d91a. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DEPI82502115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x351887a639d08a6e6458683954f5e684fee8a0ded61a9ca973770509bf159dc8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/DEPI82502116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdbb95fb9ba90366b3ba276731d1d1d59c91ec1fa3b56b9ec94e924b39aad8f6. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/DEPI82502117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda61b9256c8df1e15adede018a736191b694f652bf68adbc1af8370f73e0ba07. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:48:45Z), 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/DEPI82502119.
Zoom - Der weiße Delfin: TV Episode 13-16 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 17-20 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 21-24 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 25-28 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 29-32 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 33-36 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 37-40 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 41-44 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 45-48 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin: TV Episode 49-52 (Das Original-Hörspiel zur TV-Serie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe709c30040747c90f1f062608a60cfe0adb0dd2d53ad83583bb86bdc404e816d. 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/DEPI82508595.
Zoom - Der weiße Delfin, Staffel 2: TV Episode 1-4 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin, Staffel 2: TV Episode 5-8 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin, Staffel 2: TV Episode 9-12 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin, Staffel 2: TV Episode 13-16 (Das Original-Hörspiel zur TV-Serie)
Zoom - Der weiße Delfin, Staffel 2: TV Episode 21-24 (Das Original-Hörspiel zur TV-Serie)