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 0x07ab213d986f81477c086c73759af86216acb1f16a35c695ae06f2d41641214f. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03a3e841-e443-4415-b7f0-af0fd6611ae0.json and https://artists.proofprofile.net/proofs/artist/03a3e841-e443-4415-b7f0-af0fd6611ae0.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Teil 1 - Folge 11: Paul Pepper und die verschwundene Beute
Folge 11: Paul Pepper und die verschwundene Beute
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 0x7b8fef38d47371fb5498ac003e05400f3d7a1f41f7712181c90bf655cbe916e8. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEVU52118834 — a six-check JSON result.
Teil 2 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca61cfa803e0f922cda2ad8fd4b5af35a0dc1601249b4b4c1be264627b49636. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118835 — a six-check JSON result.
Teil 3 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b25747952840cefbc9dd11591ce136f6d70e9a0d05d0819f29e360fc1acd8e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118836 — a six-check JSON result.
Teil 4 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a849e4ee60ee4d3319eac38f8c019b06d6b6e14093eb8edfafb6950ad81c14. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/DEVU52118837 — a six-check JSON result.
Teil 5 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ce1e3af4e56aec36d9213c8bb3534c0244fee3c86b4cd7d182501367c3bdd9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118838 — a six-check JSON result.
Teil 6 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x823defd0d769109829bffe801b347e6a848efc125442d3c9bb1eaa6e18ef0055. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/DEVU52118839 — a six-check JSON result.
Teil 7 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab2b59580cf2adb65c80f033d1dc6783db4b26c70c4427187e679b0f0f27d21d. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118840 — a six-check JSON result.
Teil 8 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e770ba9209158262adb7f9354b1c72118b2703a63256c9cb456743d36cbcd0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118841 — a six-check JSON result.
Teil 9 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3236f7953717dcb73357b3927a0ae2f45f1383ad382259d27efa7ad1d3894aaf. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118842 — a six-check JSON result.
Teil 10 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b13827d345ad7bc074bb29fb78b085dab567d7207ff106a7f1c5625228c891. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118843 — a six-check JSON result.
Teil 11 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x705f59f0a93145f0c966ab68d81736f2f446ea749b9bd03f36fa14a46b6665b7. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/DEVU52118844 — a six-check JSON result.
Teil 12 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb38f55c73eea1fd35cd431ae8fe83828adb7dfb3119a3b057f12917823a31819. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEVU52118845 — a six-check JSON result.
Teil 13 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf659327dd2c628d3ec2441be7720e1698cec1743ef5e3d792363faab7eb0e8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118846 — a six-check JSON result.
Teil 14 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5c1ce69aed0fc9425cb4c2aeec3ef7d4c131af2ddf3e9e17649edf34aaebe6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVU52118847 — a six-check JSON result.
Teil 15 - Folge 11: Paul Pepper und die verschwundene Beute
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffed3b43f31d76b52f4450f9d0ea2fbc51aaa339d1bbd7d0fcf748b9c95a0083. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DEVU52118848 — a six-check JSON result.