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 0xa0297144fe2355ef6568317bebae3b236faec6a65d067bcb557fc83a608901ea. 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/66231eab-695d-4cb7-b9f2-539f811c5ff1.json and https://artists.proofprofile.net/proofs/artist/66231eab-695d-4cb7-b9f2-539f811c5ff1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Folge 22: Das Wildnis Abenteuer / Ein lautes Willkommen (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 0x654d8ead0c1df37e9e26480e88cdf54527bc8f1ca995b643a36efa405b4ac37e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEH822104583.
Folge 23: Der Dressur-Wettbewerb / Lucky, Polly und der Wolf (Das Original-Hörspiel zur TV-Serie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487625992fd86dfe38e10580f7101872e1406009f9fb4a5005d9e2014ae36e48. 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/DEH822112162.
Folge 27: Großer Gouverneur / Fest aller Feste (Das Original-Hörspiel zur TV-Serie)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6312ff1f189c799f4db8a4d5cf246de639698d4a3627318f6f133127e9494be8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1e6f77a0cf8546ac135aa7741e7e62f657c27e99b69e2918c3ca93d71fd3681. 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/DEH822112161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xace41b8c099c1bd0046ab085d8c409a8bb4906c4c49cea222aecbb5c6693dd00. 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/DEH822112163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79512864da58aa88ed2a3759b3a4ce9841d0b15ff39ded131137ef02ae4490e4. 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/DEH822112164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf52985fa3451b77437f36c92eb0a440c9ba00c79eca4ceea36f2e9d3bebbd1. 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/DEH822112165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeed230198c47989adaf30ef1a4886f661519e7b93d2349bbb1f0713f6fe48bf7. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822112167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf48d8755899209a8d5b44cd9114e13def0e186a850fea98e8e8a81e304bfee3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822112172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x347f87d513998713a4a837180702b60f5057274242d35c83d63b0719d6f564ec. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52698993db8a68e408953c75c6c624ef1ea7c9092e80c7b4ad09fb7ccdf061fc. 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/DEH822112166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe7d2452cdaddb8e6d72edc36b51cf29cb6cd8b75db231087e72ff78af1346b2. 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/DEH822112168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23d65fbd20d537508accedefac7c2852304eaa672644eb317c49594414e9ff8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822112169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80c57c974d53a070d0ab8a544eb1b36e9460ce6cb09e4c8561959eff667a8efa. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822112170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecd91e6999d0f71fc5bcf6c0dad256c0130287bb37b071def9bd8fe55f6acf5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822112171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe310a828d10871d6086da4b69c78ca2d81bfbfb49b07d3551d272cdd25bd2c82. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf9da777b6ef1fe949974d29a7c8e822644d33964cbed84f8287cadc1482992. 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/DEH822200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25107de8092a14f1e82ed51d50158a4ee76449c80bc100e1704fdcaf9cfb05ec. 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/DEH822200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793661ed74d3c31b991769390aa989ff5b40650038ee773799270f76fb085740. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336186bf306dd30c9b01a79e339206f5976cc10fc58c58b3507ab4e5956bcaae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEH822200007.