thumb|Oliver Gottwald Oliver Gottwald (born 27 September 1978) is a German singer, guitarist and songwriter. He was the frontman of Anajo, but is now pursuing a solo career. Life Oliver Gottwald gr
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 0x6772a353146dbacfe46a05ca7d1d106973d6cd0884c822f4b8289654a53e2a64. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a1eb11d-3d8f-4355-919e-50fe35866acd.json and https://artists.proofprofile.net/proofs/artist/0a1eb11d-3d8f-4355-919e-50fe35866acd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x7a860de25a3862780388b13257698eedf1172fb8bcb15df0a187343d20070e4f. 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/DEVR82200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ccf29d9306c694d10e46d35ce0c2804550372a311c624e093bc00cf2d3966e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:48:37Z), 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/DEVR82200590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c98386d340de5da16bf9dcd00f5c751a30b68c26bd6eff2695ec81c72bf68b. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DEVR82200500.
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 0xb7405b588c8b1e56d84e817dc9dd6cd892f1f6a420d4104f918fb662a547d037. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/DEVR82200530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5bc68b8b8ee8cbd2c570bf0ef9ca0f245780c3255f9f77611603d51c89d824. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEU161503127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ca674d58e8a3ea35766c1e8bc48610ff5d36ed63f02a196c16bf60ad3772f8. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/DEU161503122.
Weck mich aus dem Winterschlaf (und lass die Sonne rein)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aca1ad6b695296c5995a2e1af3f6a8a5a6ace0718caa538321e382758c33253. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEVR82300100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96de0406bbfbdc6c4d1f72b3f138a18e96e9decf153f1511b89c7c6de10baba. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEVR81700018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af2845de21044489061c50d509f4f4bad766e7ffe2a02f29161a30261470073. 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/DEQ121753055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f107c5a2747500e4a26eef85700df4c44b2dc04bbff63a2850c667c163dc97f. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEQ121753056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29ff064e391abeba7c6b1d70cf62e0c1a4c374e1e052b36efa2584e187684477. 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/DEQ121753061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc11bdbce13ec04f4f985d3c8f6f2036fdba12082330090b73ac8caa41c8a1b3b. 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/DEQ121753065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82943269dbddefc664962ddca4487c53642c4f9e46eff8e8fcebaad67e89795e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DEQ121753066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd631e2ef74e2d6074eb54e2453deea5587beeef5647cafe36a8f03b36213a3f7. 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/DEQ121753067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da12d2662df890e96ebd2de26b4a0386be82607e899a221acbd8f13c73c302b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ121753068.