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 0x738849ba6f083719770526a41a8633df0a4e748e066ba7e78fce8626b2b8ae66. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d2d1344-e70d-4ecc-9284-070bcd08bd84.json and https://artists.proofprofile.net/proofs/artist/8d2d1344-e70d-4ecc-9284-070bcd08bd84.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Die 100 besten Ostsongs (Die radio eins Top 100 Hits)
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 0x19dfad378cf3fd06df97439960c55f7aaaa1854290a8e2503a5f9f350552dba4. 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/DEC730300324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414209ee7715db073ae9aeb90e8a07440823f88c929371e308b82c4f4a5db7b1. 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/DEC739500569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397c8480d60d1d075d5c1aeecd9182b674df233bdea6caac5cae11bb151e5761. 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/DEC739500555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e829491585f43385a911a5dec01283e74f130dd38f422720726384683030dc. 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/DEC711911338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865695073df329cbb65a9ee50181aea4cea410e32b1cad55ccc641fe0126cf53. 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/DEC739400423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5268fd591ac9cf66630fb46b752133117aa1fdd10ea6a29772021159195baa09. 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/DEC739300274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ac885044dca3b62bee4cc0ce1a7c6f930fd3ab4a41b4689eabc3dfc8fd62df. 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/DEC731400180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc2904588965625d788fb306357146957c9eae1280fd4fe297cec74eb106a38. 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/DEC739700475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190ade8f6130add98bd78f9e870b1864a6f44853aa95ffae39fdc72b22dc5c7c. 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/DEC719400611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22eb37de64a1f0c8afe488b924be4028dd6af9793753dd5659d072b69f1d12b. 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/DEC719400734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c7eea2c2d297edc4e9559981c71f35774aafc8fc58c6910c4bf901ba9d946b. 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/DEC730900541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c00cb4e257c40eaf54f44b182bd6df8e9d4c413e74f149ac0a885d8d2f8158. 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/DEC719400666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95da0ece74f1dc78311be086170bd6e87bded805d8dfb923e666250085cd8375. 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/DEC731100116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d175af96d7a2214bb8b5e2eba98eb83ef75668959550be0617541da5dff72c. 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/DEC730701064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6e500044d9c75e7bc5058a17b9407628eccaace2137c443dc885c3b9dbe8e3. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/DEC711911554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73363e1ce6afa4a95bddc272dc29e86fca270e1e0c6b7e445191687443cefc0. 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/DEC731900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6038788c02dc94523c4db68695bd8d1d0b1d8ffe2793b75007dc669b51f516e0. 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/DEC731100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c254787941f214d53e945e0d951ae296477983fd4fb9e012e6671de50b55c76. 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/DEHU50700062.
Die Glocke Zweitausend - Jugendrevue Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0396bcfc52997eae5bc2c1adcdab2d4a0bf260b2472d7dad7a0683573a3718a0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEC731000025.