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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e24fbcf8db648086cc4b6c0a21a33a76250b39851032a4a41c3176537b5bd42. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e4423030-3287-4e33-a7ff-e9b288c019ae.json and https://artists.proofprofile.net/proofs/artist/e4423030-3287-4e33-a7ff-e9b288c019ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musik unserer Generation - Die grössten 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eb17837e53d2b529e74e280796327d7538667a98eddeccf64d5e0238adccfe7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEE250900111.
Die 100 besten Ostsongs (Die radio eins Top 100 Hits)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c99d303e4b762075fa5f7bdc304fd8b6903b49713e4e27a608a48b6fbe4d707. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEC719400576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d64e1bc0a40689eb65d710d4647976ace33356d9948d85a440fa6ea5f00ba5c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/DEC719400539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c99d303e4b762075fa5f7bdc304fd8b6903b49713e4e27a608a48b6fbe4d707. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEC719400576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c99d303e4b762075fa5f7bdc304fd8b6903b49713e4e27a608a48b6fbe4d707. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEC719400576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6af683a19b80baac783d43dd9471a52b633207caf1ca2c9158cd00ee1616470. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHU50600024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30310b080eb5c96b8f2e0cdd3eb9c08cf58e8410c8cef0b8d56fef1402c369bd. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHU50600026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc986660950c3e8cab0b50abd0be713f6c7ba459b5d34426ed843d05ea1fd5d9f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEHU50600028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e15f154d262e2f7f68a7d2ffcff7f27f850c6b7367586e6ff7d6c47a009fd65. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEHU50600030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf710ef66052d2147413538e36242fcadef149cf26d7cdbf4f771e43779e906b9. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEHU50600025.
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 0x1ce1d01b67e65a6b43238adf8f361bf7953aced7186446a33d9db73cdfb96760. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DEHU50600027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb43362dfa8b2edfa570c5e0b17a6f48ef30c007efc0220acac8c0b3651ef914. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEHU50600029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35be344b89fb7ff285669cc40c4a6da44933363f02c304a55510f1c61b0ca82. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/DEHU50600031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3f89e67adcd31888f2afa7e523ca67aa1e9f59651e52183535147700962cb6. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/DEHU50600032.