thumb|230px|Meteon (Labeatidis terrae), Roman times thumb|Remains of the old town of Meteon. thumb|230px|Church on the fortress. thumb|230px|Medieval Medun in the Upper Zeta, Middle Ages Medun () is
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 0x1af3d968cc9e40f091839a0408b946827914802f6376ec2bf13e1f2457ed9a7f. 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/028dc094-df6d-4804-bd1d-02efecef43e5.json and https://artists.proofprofile.net/proofs/artist/028dc094-df6d-4804-bd1d-02efecef43e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Need Me Again (feat. Laura White) [Acoustic Version]
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 0x70b4735e81cdac42d172fa1287d6858d256a872726ec5bd357822de323f0a0fe. 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/NOG842305120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4673a2df1b1ac527f751e5122ca58bdd5ca68b3b83609ddc686faf262b3f171b. 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/NLM5S2302011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x762188a6c2a87783e6f0eab98039eb903e1546ae08d41bf51e0e4d14f45a9dca. 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/DEUM72305463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc1a039ebcd25492883a97b8c17833ebdf90d56bc9a78a8d1de800abc115ac8. 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/DEUM72301253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x310d1dbd639dc7dee4909a6bc36fe1eb42714414764ecdffcc0a801ab3899157. 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/DEUM72207389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9d4ccb694126ec6b0fa2553cf08bd4a801aa9173328cae8f314264dd0ed2aa. 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/DEUM72206683.
Keep Letting Me Down (FÄT TONY x MEDUN Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d866e335d38d9b54d96cd4cfec6af7a42cca40b9b05124e9a848f778b18027. 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/DEA622201689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9d4ccb694126ec6b0fa2553cf08bd4a801aa9173328cae8f314264dd0ed2aa. 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/DEUM72206683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301ca9417d884f1b02f71b39c2933ba3b06e77db75c4152abb6cf09624dab900. 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/DECE72200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa22dd811c9edf8280b2888f46b25446f1edc03d9d93d03f794796135a06176. 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/FRX762007520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ad3f31156d65b7f53991a714a5ce7d757828c9387fd1006ec5c985fa01f6ec. 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/NL1AP2074923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d39827b968fc6a17b37bdda65fc7149fa6d93302459dd4d3de13ec6e84cefe. 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/ATBO81900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f2fed0cc356706937dc078d603cbebe8124ece1e3db29ebaed854c151d51d6. 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/DEUM72400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1794761d0ecc106c1d3d647c1069fd214a3e3fb605fd106ac3df575f1768e4. 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/DEUM72406915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c576678d2eabc0c3d14c7cf7a8d7c53dbf7c569a3577b975e57c0f7d61f86c. 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/NOG842402040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cb7483fc2ab6e086ec75d7b6f256f637d35df7a2d92b95346ed113c87c59b1. 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/QZDA42361787.