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 0xc83110973414e819634f09350429c3209b60d80d984e330bfba7aba0f4f539bb. 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/58962aea-f636-4279-903e-3833925118dd.json and https://artists.proofprofile.net/proofs/artist/58962aea-f636-4279-903e-3833925118dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kapitel 1 - Folge 57: Die vierte Flasche
Sherlock Holmes - Die geheimen Fälle des Meisterdetektivs
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 0x00f2525b3569ba6d87bdf48f87ba1b06599bd3df269f664f6985f66952d302ac. 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/DEKV42314009.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9088dda98e4e7f562eb3ce7fe411c179fdb66077b14890fc56df55465ba38a2. 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/DEKV42314010.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb22d099ddfee612fc9797ed9d3f6b0d4c36b3ea8d05ffd434eee508f9df4e548. 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/DEKV42314011.
Kapitel 4 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadfb14be859bafc0d413312cdb2264e440eeeba1e65b7b661e16d520fb48b00a. 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/DEKV42314012.
Kapitel 5 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea9760080a26e46da1e3ff38502bf4c0fb47f3c0907e20ec4f99239c60ecd20. 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/DEKV42314013.
Kapitel 6 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e71c5db2aa7d9e4266fbb6851b63a2d99198a24e4f735e25a31f8a9a55fd57a. 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/DEKV42314014.
Kapitel 7 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x469d0dc4d29843e744168f26328036dbf7d29e12b47e1469efaac89179ff78a0. 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/DEKV42314015.
Kapitel 8 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fa27f2ee766302bc95449a7a5639318be1cac4cbb363df85e0398d41a9dcc9. 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/DEKV42314016.
Kapitel 9 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc2a60ed0b19d367110e8d38b9257d496f2f4860052ef0c2b0f8297157738a2. 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/DEKV42314017.
Kapitel 10 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d154a6408dc3efbdaafc2f5717e31c100f0c2845909724c29ee38e7507b0184. 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/DEKV42314018.
Kapitel 11 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0800934a066c1d16b568c0573beee8476fe20d698e95c68070c0b6b4347f755f. 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/DEKV42314019.
Kapitel 12 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2150c69f436d9b04185b16b83bf316ece4117f01add461578aee5a928fc7c64d. 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/DEKV42314020.
Kapitel 13 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc133c0b31251401961e1313aeebf1e9ea16cf5e28dcc1e32074a8ec104d7ec85. 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/DEKV42314021.
Kapitel 14 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a147e4a092f0ca4ec46d55f29592358901defa51de5983b3781ba3a4f9afe1. 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/DEKV42314022.
Kapitel 15 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678975543682b5227d684cd61aee720ea0b3e3dc99ebea9bd1150b9f7744801a. 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/DEKV42314023.
Kapitel 16 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fbb1e819e05a3f7f6ac2ec837b39e9d3592fc80857a98be84b70208860a8bd5. 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/DEKV42314024.
Kapitel 17 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77ad6f2a48f90da50bca6589ce9879c1ca9fd77a6c54743eda61ffbc89b4c8b. 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/DEKV42314025.
Kapitel 18 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d4c0e87776ae5a1d4f09027ae14e5f491c64e2ad02d902ebf85b69e977b29c3. 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/DEKV42314026.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08fe45f62dd4bcbb92131eaa4b8f8e0d0c1454c75b824dd52ab4bd2a375cf0f0. 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/DEKV42314027.
Kapitel 20 - Folge 57: Die vierte Flasche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbe4152a5fd7362b854f2d37793b96e97af00d67aee83a3cb0cd8a930eac0abd. 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/DEKV42314028.