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 0x5d367a4f50082432e672936c2d02cc290152a7b05f9326a78ad49190f503f428. 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/40795936-f44a-49df-b294-b73ece1eaab8.json and https://artists.proofprofile.net/proofs/artist/40795936-f44a-49df-b294-b73ece1eaab8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Audio-Download zum Buch "Hypnobirthing" (Der natürliche Weg zu einer sicheren, sanften und leichten Geburt)
HypnoBirthing. Das Hörbuch (Der natürliche Weg zu einer sicheren, sanften und leichten Geburt)
Intro & Vorwort von Lorne R. Campbell / Einleitung / An die Eltern.1 - HypnoBirthing. Das Hörbuch
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 0x87c45f58568a41254e232debfe6ada0305f041d322d8490743164d84b44a2103. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615640 — a six-check JSON result.
Vorwort von Lorne R. Campbell / Einleitung / An die Eltern.2 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaa2172e3042cff44426e23aeec17139592bc2ad152ae2bcaa640b59ee7ae39. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615641 — a six-check JSON result.
Vorwort von Lorne R. Campbell / Einleitung / An die Eltern.3 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87fffb6d1ee04aa1be76353c52aabc4a85a300d5776377cd6e6a5483b0bf877. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615642 — a six-check JSON result.
Vorwort von Lorne R. Campbell / Einleitung / An die Eltern.5 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83ab0b0c4f77ed258a89efea82f602b87138b7533d40d922b86bf4d06b81768. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615644 — a six-check JSON result.
Die Geburt der natürlichen Geburt.2 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce2ef5e01ec076f2d951df2a501a6eb1efd3c73e178d19c05c5b95163e85e02. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615647 — a six-check JSON result.
Die Geburt der natürlichen Geburt.3 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4883fdb46fe365257ec8c5a6a2f0675f035c2c803b41bf2c4e9e995108a35984. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615648 — a six-check JSON result.
Die Geburt der natürlichen Geburt.4 & Die Geburt von HypnoBirthing.1 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddb949bcb1da973df1d1a1bd3f0096496c0f6ba93fa2578722cae1ae33ab13cc. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615649 — a six-check JSON result.
Die Geburt von HypnoBirthing.2 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd95d46ef2bc8033761dfb2192abd7e48ba326476b50878e0277801f5fc06e52f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615650 — a six-check JSON result.
Die Geburt von HypnoBirthing.3 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ff8bebc944dec701a00c3559d19ae157c8ccf21a957a122efa8b6604ff2269. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615651 — a six-check JSON result.
Die Geburt von HypnoBirthing.4 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98276eaba9b4a5115728e33e45355712f129bb6ac89ecafd6e25f84a08e6b650. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615652 — a six-check JSON result.
Die Geburt von HypnoBirthing.10 & Durch Ruhe die Geburtswelt gewinnen: Die Philosophie des HypnoBirthing.1 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1c7eccff6a8c004030fdb32f2fe1566052c4969bd45b5a78b5312c28ac2a839. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615658 — a six-check JSON result.
Durch Ruhe die Geburtswelt gewinnen: Die Philosophie des HypnoBirthing.2 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc63a040fbbdd6d4b9daa06ef6120ad260e2badf3f27a431032734ebdc6b933c. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615659 — a six-check JSON result.
Durch Ruhe die Geburtswelt gewinnen: Die Philosophie des HypnoBirthing.3 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e24346efb3835ef0cc68e08c118c7961e7e32364a1ea47f9d97eed2d4d2341. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615660 — a six-check JSON result.
Durch Ruhe die Geburtswelt gewinnen: Die Philosophie des HypnoBirthing.4 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d21d8b4bede4d253c228efeb013014c213156689476e1339e408eb23ed0810. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615661 — a six-check JSON result.
Durch Ruhe die Geburtswelt gewinnen: Die Philosophie des HypnoBirthing.5 & "Was soll all dieses Zeug?" Die Macht der Einfachheit.1 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cb36cf01da85d015ffed242e58a07381079dfa05bd2a91553b68d316b9a969. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615662 — a six-check JSON result.
"Was soll all dieses Zeug?" Die Macht der Einfachheit.2 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55de770023f81eb1c698097029e8a5aa79f27c798bb888d0c9329095441fd557. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615663 — a six-check JSON result.
Von der Freude zur Furcht - eine Geschichte der Frauen und der Geburt.3 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea8058da5333df42a8ccbb2123250d5b4f8501e51b317ff96ac76ecfad7370e. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615670 — a six-check JSON result.
Atemtechniken.2 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdcecd2bf5e4c59094ceba01b9192167f74ab3780ac3170806a033bc4b6499c. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615726 — a six-check JSON result.
Atemtechniken.4 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be02c53caf9abee0a0985ce20eeeee17f34f683eab16ee801907ce620a6548b. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615728 — a six-check JSON result.
Atemtechniken.7 & Entspannungstechniken.1 - HypnoBirthing. Das Hörbuch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8aeb30fe4a8ac8e9a285723431368fb48b90a2eda383bd8fa44eb4adcee1812. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1JT0615731 — a six-check JSON result.