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 0xac537ccbc17b78fd52c017b91eff686ef292865a0f0fc4ee8a94cc49fbd70bd6. 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/8a55ff28-5e99-4907-98a2-6926d5bb7feb.json and https://artists.proofprofile.net/proofs/artist/8a55ff28-5e99-4907-98a2-6926d5bb7feb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Folge 39: Zu viele Geheimnisse / Mr. Pigeon 72 (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 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 0x5e8bd51ff575ceb9b8e0ffdaa2e69b72b90944a32d7bd938655795d3536ea5fc. 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/DEH822202697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75976bc5fa6bf83c0459a567a23062e233026cf8ac20a5372bdd95de79c996e4. 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/DEH822202698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee6e4d07526d63a31f27fda16b6c2bf44bca42e464d7a4d18ab03a24c305fa6. 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/DEH822202699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1f8b676658234d525fd260039e8471c4c893ef752459836c47a260587123fd. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEH822202700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41a385169cc3da11be262b99c8f77727eff4fd091b110099dd037b967f35699. 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/DEH822202701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3770276585d12b1ec5868c875b2888a4573a45c855bd46fd4e7393fcfd42801d. 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/DEH822202702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c13d17e8342269426a6442109a43096f427435e786233c9ac3738042abb0015. 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/DEH822202703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83a6df0cbe8ca1cd7c6f6bcde235689c6356b396c5cf01c1716906c917f2bddf. 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/DEH822202704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70111bee717b3fb2520a848321ebd64e98fcb63404c89c4fbb3da6c0464c4c03. 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/DEH822202705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5778431fdcf00e79f2e5d0877abb6816090fa8d10b22c705fb517fd4cc23ceb9. 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/DEH822202706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775d924900c1f9164d5e7e5394a52f6c31f49b1dd9b4a46972d84b4d812b6c82. 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/DEH822202707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ad1f1a6c61b74ae0929d75a7870c8883c409bb4ed39716c48a1f9e865c9069. 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/DEH822202708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e0d5ff80f06ec7e58f1203c65ca569575647c4861253478c13e47c16c27c3c. 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/DEH822202709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9090917be71e52c5dd18fa33b5781983e86219ee76b310cf9f0249ef77f8b70. 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/DEH822202710.