thumb|right|200px|Mellow Mark Mark Schlumberger (born 23 May 1974), better known as Mellow Mark, is a German rap, reggae and soul musician. Bio Mellow Mark grew up in Bayreuth and started his music
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 0xc934b5ad494f478eccf5d368b1bb7e719996e9d7c886c00fef640e35f2f84861. 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/c4817b21-01b1-4d83-a556-cdfaa4ea063a.json and https://artists.proofprofile.net/proofs/artist/c4817b21-01b1-4d83-a556-cdfaa4ea063a.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 0x2e595b5e18c66817cd768e6b780b361849b3e131d9ebedaf9c5217e9b89f2ac4. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/DEA620300192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61aee7989af2dc86c00e8b67cb6980a1bd0917cc7c43d3e011d92e219a356daf. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEQ120405005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077fa607fa875be767cb8bfcf8b220c32bf51299102c5615ace9ed1dd78e1792. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/DEQ120405006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x766bcaa35635e1317aba7081dc21311b5fe33692b064a67be20aaffade8e472c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/DEQ120405008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a420aee72f843135afc8b65c91ae613c305f92189784444d236b457b77af232. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEQ120405016.
Weltweit Stasi (feat. House of Riddim) [Bottom Riddim]
ALLE EINS (feat. Youngstarr) [Viva Con Agua Song]
Zurück zum Roots (Dada Riddim CRC Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79275d87cff16b16aa1f644874a527ea7f1772c8ecb4118498ea402377c8e79b. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/DEGQ81504519.
Unite (feat. Stephen Keise, Son of Slaves)
Alle Eins (feat. Youngstarr) [Beach Bums Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc8c08af00579f03033f7c704b20125157ae8d21b32c028c890f133df24a00d. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/DEOO31700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93587abcff8e0ab46ce869392957f85be07d74e45f9cda8d19cb7ed62abd93a. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/DEGQ81805155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cba23ccb7a5bbd03b6d1296ef988380f2c173f80e9fefcca96b17a8651c0b9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEGQ81805156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccf79c4216ce7fb6ebe3b1af82b611f7bc5eba084a62ce2f9105e6d695a786a. 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/DEGQ81805157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4c96772783dfc84006fca2e3964608f206e1796b064b53f92dd5a11168a14a. 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/DEGQ81805158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ba5f2410401a2bad771d1e3274ac9d23337151504ef31b6cac2620932df22b. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/DEGQ81805159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x486d4e1e07b90e9b96dc82f8fcda254c76a1e58399f5ca78de0b421c21e5448a. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/DEGQ81805161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f4c9c72e183c4842bbe85b1291d9b3358c34ea0270124c59e433fdcfa581dd. Chain 2 (Bitcoin): anchored in block 958510 (2026-07-18T06:38:22Z), 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/DEGQ81905364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c143854554e6a418692609e25bf7436da520ac0b0183f6337c20e3f4503edd3. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/DEOO32500701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33e094bf9a83994618d90766d7c1f55dd47e0933b9bb236e0c7c380511a43b21. 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/DEOO32500801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2dd4158eb242a7a588b7fb4758e9c7b93aa8a8ba25cb40c0898f33e1a67f08. 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/DEOO32501101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x487badc5a5af3b504a92a123f04de6da77ca510671d8ae1befd16192cd649f6d. 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/DECM10600703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0219e13f91ab7b9efad6eec46cee33e7a75193ac9083cec71b011e3d79421d65. 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/DEW930500007.