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 0xbd30706287f5c85c8e2b8bae2aba20cde41c7cd9975f28716285fa2f950495f5. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8813079-357a-40a2-9dcb-72ea02e8c8da.json and https://artists.proofprofile.net/proofs/artist/d8813079-357a-40a2-9dcb-72ea02e8c8da.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 0xd1ee232a2f5f31e9aa85b29119d25f23124586173d5ba151ba78b27ef2a163a1. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZK6N2436007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cba32e7ac57590a2fa2ac37c7234988c4bbc812da8d96dc523670c3225da92. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZTAU2470130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1dd1dbd1e604633c9927496b93c3b9a821f91ccc8e2343be898624262da0f3d. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZTBB2406330.
Immos Geburtstagssong: Wie schön, dass Du geboren bist!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcfcb8db69dcc2e82cb4cb799f05c47c43dad8d2c549d6b977593ff3157bd48. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QT3F22428561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc284f3ffe57e0d3989c24b81abca5df1803648ead38356863a7eaaf7d5a365cf. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/QZDA62547537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7b0b9e5af86aa94c29621de34f6e7365a32db880889bdbd1ba0b3cb790df59. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/QZDA62547538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc2e065d6c3f5c12e4755786d0fb2830c53a616e4a3156e1f00da3910f0406f. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/QZDA62547539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6221ca693239158e2a66441cea512c6d8e9e0875cacc05356073b185f2e67a3a. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZDA72504902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6913ff66c391a1702e17ee10b628238c18cd658640efec3887bc550999ecb5. 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/QZHN72585500.
Rambo Zambo Abitur (Der Abi-Hit 2025) [Abicalypse-Mix]
Rambo Zambo Abitur (Der Abi-Hit 2025) - Abicalypse-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd10a2e1552b3819b61913a496a6ac3eb670ed42c26e8660a6167575a4924b29a. 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/QZHN82516065.
Rambo Zambo all night long (International Version)
Rambo Zambo all night long - International Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe58ebf1fd9595873f1cb05cb7aeacf5450f214e6572e3e8e7174af10beebdc18. 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/QZHN82560773.
Hurra! Paulinum-Abitur! (Rambo Zambo) [Älteste Schule Deutschlands Mix]
Hurra! Paulinum-Abitur! (Rambo Zambo) - Älteste Schule Deutschlands Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e90760a053a2f53d8f9e471d002dbdd0c5b0e9e1fe73f494f597bb2ae89a36. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZHN92534155.
Goethe Abitur (Rambo Zambo) [Johann W. Mix]
Goethe Abitur (Rambo Zambo) - Johann W. Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d202150c6b608dd8d55e437bb195aa4cf010ea2d7a0d3629a0b39f394da3f27. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/QZHN92516423.
Stein-Abitur (Rambo Zambo) [Freiherren-Mix]
Stein-Abitur (Rambo Zambo) - Freiherren-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da927951b91b5e10ca27646e27482eab8bfc4ce9b01cdc1729e0ad39d478379. 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/QZHN92519676.
Abi! Abi! Am Annette! (Rambo Zambo) [Droste-Hülshoff-Mix]
Abi! Abi! Am Annette! (Rambo Zambo) - Droste-Hülshoff-Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6cc163fbae3055ebbbdbea6d5dc498eb40958eb46141ef20d4e9a4ab402bfa. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZHN92520013.
Abi! Abi! MGH! (Hammer Abitur!) [Rambo Zambo Mix]
Abi! Abi! JKG! (Rambo Zambo!) [Johannes Kepler Mix]
Abi! Abi! JKG! (Rambo Zambo!) - Johannes Kepler Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bff64ec6b0e931c5f3bbd16cac8a56cfccb09366d390fea9a76fd782ff0fec9. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/QZHN92512507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4caf4e42c5d4c6a13b6661cc9ec875194a069e7a1e10b3ea905e5dd94b1f2cc2. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZHNC2572946.
Abi! Abi! GSG! (Rambo Zambo) [Scholl-Geschwister-Mix]
Abirol! Spritziger Abgang! (Friedensschule Münster Mix)
Alpaka-Kontakt (Alpakapakapakapakapakapa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee84033dede798fb773426fc3d4f0a320c2b773f62379bc3df01784c2d9f688c. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZMER2506396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002b039419be75bcc9537f048cc2f4c828dfe3147070d94a9cc4fae40eee8c2e. 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/QZNWQ2595110.
Münster Marathon (Run the dream, feel the beat)
Deutschland! Schieß uns noch ein Tor! (WM-Hit 2026)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b2cbaa1623b8cabc215c2f71689e6dc352c0154042b90a3a61d08f10df9872. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZWFL2528778.
Uro! Uro! (Uro Dance Machine) [The underdocs Remix]