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 0x7dc78d3da6a842675590015da77f3cbcceb463b1259980587201632ad03384c3. 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/7a282f52-7d1c-4c4d-9bda-65788551c554.json and https://artists.proofprofile.net/proofs/artist/7a282f52-7d1c-4c4d-9bda-65788551c554.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 0x939022629c9c8f138b5fa1acdca1a3c2f40f326f55d093c4020a96f4e250c48a. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/CH7812192937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd526d4e2dfc6f2bc4e40f281c1506f293752d6c827bd8e102ef4fc8ec4477a33. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/CH7812192949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea78f45fc2453c24170087c8bb1ac2fa46b6a0b5c464d4cda98f88845878e22. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZWFK2570726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20abb47d4c2c013e9045939f35e00bdbe5e549593d16cc20be3c33e35d0e05bf. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/DEPI82308155.
Mach doch deinen Scheiss (feat. Mo Trip, Olli Banjo, Franky Kubrick & Kaas)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10250fe4580a59e9f53796a67f09f87e7a872e66fa45bdd13584b7f662ba7d73. 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/DEBN21000003.
Merk dir meinen Namen (feat. Franky Kubrick, Olli Banjo, Mo Trip & Moe Mitchell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c04dd94684629db7c1b7286ca305a2dd8f5c82e12ef1920daa6db6d6e00ba8a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBN21000009.
Die John Bello Story erzählt von Franky Kubrick & Moe Mitchell (feat. Franky Kubrick & Moe Mitchell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1fa464de3129c1c873dee087868444cfbfbac87efdbf56aab490693e99f469d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEBN21000015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20abb47d4c2c013e9045939f35e00bdbe5e549593d16cc20be3c33e35d0e05bf. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEPI82308155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ede2dd10fdea0b75edf9459784b169263b8b4e6ac5475b4731c9b05c6697c5. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/DEA810601953.
Krone (feat. Franky Kubrick, Moe Mitchell & Amaris)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3e2b62d69e7a4c1d1f8b90c86d718e07efc5ba3f72af6b2ae80a91d936541a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEQ120807428.
Weil's nicht anders geht (feat. Franky Kubrick, Caput & Sizzlac)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee52b88577d1bba2de0cf896419d8b6fe1174f93318d37ac6d3b01012fc212f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEQ120807430.
Holiday Hoe (feat. Franky Kubrick & Moe Mitchell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef76333d7e3c66d95106b42c7f15b0c61393f7c4fd94a63d9fb338b78d376a17. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEQ120807435.
Ausser Kontrolle (feat. Kaas, Franky Kubrick, Caput, Olli Banjo & Dervizz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b241769b65bcd2a58a380a91ead5f0a045564bd4c9e45365aed6030691968d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEQ120807444.
Krone (feat. Franky Kubrick, Moe Mitchell & Amaris) - Riptor Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d75985753764d1498bf045e7e9c7fc61c3e9db382583fb5df47b2ef8dd419fa. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/DEQ120807445.
Geldwelt (feat. Ercandize, Kaas, Franky Kubrick & Moe Mitchell)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90f1d06053dbf7a53748420bf979899df343fd295b576c454e976607f8e465b. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DEA810601164.