thumb|upright=1.35|Cherry tree moving with the wind blowing about 22 m/sec (about 79 km/h or 49 mph) thumb|Sound of wind blowing in a pine forest at around 25 m/sec, with gust alterations Wind is the
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 0x643cd8f5cd3194f2752f33676af9ebf957a959469766fd296c7d80d06b013d99. 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/c632f64e-134e-49ca-b0cb-536a4e269c39.json and https://artists.proofprofile.net/proofs/artist/c632f64e-134e-49ca-b0cb-536a4e269c39.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 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 0x9fe0211030b0c0ced343ee86b84aae7a686666512f410be650a5cac17907586e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/DEA609400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0f9fd456723aaac5cc2b447b73d8473aa73b93903014b53eef9c880074bfaa. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/DEA609600322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af1752fe7b2b96422f05d58e490126b0934de806adfddd9030d4c19800e979c. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/DEN120503169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecf3bd01b840671533d8c962eac24a30397a951ccecbe2ce07e701686225f87. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEA609400759.
Fernando (... und der Himmel war zum greifen nah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ed926bbdea6d5f1c1eb8049ddcea3707c615e810699e0c3c7d73b5f080cecc. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/DEA600000723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598ece07ae1a7b95a4bf2ac5dd3f6f97e3482e963589bde34fe41f92cc7fea22. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEN120301744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9806296d0c300c9c0e62c25b0edc19c40477c34983dd6164831ef495f6235be. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/DEN120301745.
Schön war die Zeit - Die großen Hits der 50er & 60er Jahre
Leb' deinen Traum - Unsere größten Hits (Set)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf918f77814575c7defa465a5d82908baf9db9fae651c0ab5e26538b05de70323. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/DEC718500016.
Lass den Schlager in dein Herz (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x022228964993d1076b04e9e3c71705fe0a55acfd3ac589d6b0ec19ba54203acd. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/DEA761900605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc728b97693da751d33dd345b76de5f29915ce4a91a32355b577539f55167bdba. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T03:52:09Z), 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/DEL712200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953b574124914d5498a4a7b8eb30ff3b16d8c554b4637af631f0e10149dc1f12. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEL712400039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639dd666c3defd34642dfc1da9389fdcc95bef6ed6df1aa24eb45b2eee3be9a3. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/DEC718700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecf3bd01b840671533d8c962eac24a30397a951ccecbe2ce07e701686225f87. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/DEA609400759.
Schlager Weihnacht - Weiße Weihnacht mit Ihren Stars
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb060df4c689de01cdadb277cd37dd8f86912ce2b263a9d2b915957d8409fb2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEA609900992.
Die Sieger - Das beste aus 40 Jahren Hitparade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf918f77814575c7defa465a5d82908baf9db9fae651c0ab5e26538b05de70323. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/DEC718500016.