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 0x61103fbfcca68b3f8fe7c794966c3a9106a19301caaa54a669bff16048bed4cd. 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/8b422d01-d560-47e9-b198-cab6b6f459b5.json and https://artists.proofprofile.net/proofs/artist/8b422d01-d560-47e9-b198-cab6b6f459b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Das Dorf - Hörbücher zu Band 1+2 (enthält die Bände "Gestrandet auf der Smaragdinsel" und "Gefahr im Nether" - Abenteuer-Hörbuch für Kinder ab 8 Jahren)
Kapitel 01 - Das Dorf - Hörbücher zu Band 1+2
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 0xbc921a82e69d8c09403fa148489eaffff5264096baaab8f9d6a89e2a0d90d92e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXQ90092625.
Kapitel 02 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0c64b13fb80b43acb5afd20353da0a253ff93967cd0cad4acf8b27399a1a6a. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/DEXQ90092626.
Kapitel 03 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f432c777bfe1bc07761ff6bf03466c21c19a7c362b07f114870702a145f661. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:42:27Z), 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/DEXQ90092627.
Kapitel 04 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a8eedef8e8bd0194b10680d7da59a17276e5b580f91cfab728d03af3f38d43. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/DEXQ90092628.
Kapitel 05 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0595e82107cde0d76be3e14282ec32351a4356612cd6715c1d8b133d38fad4c7. 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/DEXQ90092629.
Kapitel 06 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4da066dd88067652d26b525c271e28a451a270d8a30c4f6608bbb55fdedf48. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90092630.
Kapitel 07 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc86d2d800184b7ed82a35a6aa5a1c4a786ef793b778e46483e0722ca032b2981. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/DEXQ90092631.
Kapitel 09 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd201b4181c800de766a6cecb5e8460a62e322255ace82324cf7c6e6e54d38a90. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEXQ90092633.
Kapitel 10 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888e0b7d3f1758fe0b55f9cbdc0b858ca244213641fa6a9621942748c16859c3. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:20:31Z), 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/DEXQ90092634.
Kapitel 11 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b520dd98f9a884bf74542861af6b012500eee1deda83f28627a7b133f15555. 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/DEXQ90092635.
Kapitel 12 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e6c0e9c55c295eeb4b472023beda9d5e35ff3c0679c2d9547836f5c480e059. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DEXQ90092636.
Kapitel 13 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48858cc260ac80bc6712121d6002263a25c9f3c3ee2083456a96884407d30dc8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/DEXQ90092637.
Kapitel 14 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b369bdb591fac62f4267fe8bfe1b9d8b19522146b24a77d7e19a13d5136adad. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEXQ90092638.
Kapitel 16 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f1a92f824ba3ecf4f55ed6443516e55abd380c9a3b2130948b345e0314a996. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/DEXQ90092640.
Kapitel 17 - Das Dorf - Hörbücher zu Band 1+2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24601f3b6fc90345d1923c1c408257c87836f49fd488c6cda8d74553a45218b. 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/DEXQ90092641.