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 0xadf6d7a503d1d6bc1415d4bcdcaf84f9722a5474fc68ba890d06669b36bda8ae. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d4b5cd41-91db-46e8-8ce5-458ef43bc224.json and https://artists.proofprofile.net/proofs/artist/d4b5cd41-91db-46e8-8ce5-458ef43bc224.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A padlas: Act II: Fenyev tavolsag (Light Year Distance) (Radios)
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 0x23f41851efe65975812291f8d6e1aebc96b5910b00cef2a583a3e8f6cc0b9ad4. 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/HUA253772712.
A padlas: Act I: Szilvasgomboc (Plum Dumplings) (Mamoka, Revesz, Herceg, Suni, Radios, Kolyok, Torpe, Megloko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1672d579129319921fa85df23f2f33dc78f3e3361213709353c817561871be63. 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/HUA253772709.
A padlas: Act I: Eg es fold kozott (Between Land and Sky) (Kolyok, Herceg, Torpe, Megloko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ec6ec5f39ac6e39002e7e61142691b88763d856dadd58bd0e74b32b7fe6672. 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/HUA253772702.
A padlas: Act I: Orokre szepek II (Eternal Beauty II) (Revesz, Radios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e20cf2e656081bfc078164c98604f80f97055c9bc79d5e4c983448d2ffd7f1. 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/HUA253772708.
A padlas: Act I: Ez o, ez o (It's Him, It's Him) (Kolyok, Herceg, Torpe, Megloko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013b5858194b8ad11e69a2f165b53ebef325035905fe4662a75b34ba8984f896. 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/HUA253772704.
A padlas: Act I: Valahol Orokre szepek I (Somewhere Eternal Beauty I) (Kolyok)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27591484346a9710803c28f85b00249a84a50e19713d9bf6cb76f2dd1fb4a80f. 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/HUA253772706.
A padlas: Act II: Nem szolnak a csillagok (Stars Are Silent) (Suni, Radios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfaa308d16ab20ad9d6fc5c24469e077a1e0fabcf8ef1c91d8b28731a8a6653f. 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/HUA253772711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15bc682176ef090ac9c02355e4317cab0cf2292be1b48efb0fdb192aa3dcbe4. 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/HUA253772717.
A padlas: Act I: Itt vagyunk - Nyitany (Here We Are - Overture) (Kolyok, Herceg, Torpe, Megloko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8271e0f6de87831c7eb453d643df6451e6519288c2aaf81debfbb7532722eca3. 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/HUA253772701.
A padlas: Act I: Finale: Varazskonyv (Magic Book) (Radios, Suni, Revesz, Kolyok, Herceg, Torpe, Megloko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46bfc623312a038882b0773f5037c68c46676a0b1d88e7369e4118213c58c221. 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/HUA253772710.
A padlas: Act II: Love Duet: Csupa-csupa-padlas (Only-Only-Attics) (Suni, Radios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeacfe85d45b7190802c374a2233a153207c0f450ae1837cd31ef97cd397c1ab. 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/HUA253772716.
A padlas: Act I: Mit er egy nagymama unokak nelkul (What Is a Grandma Worth Without Grandchildren) (Mamoka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7f58c63220952f5f401c1f4d275d83ca5a80518f9981247f99c204008b7c7d. 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/HUA253772703.
A padlas: Act I: Enyem a palya (It's My Field) (Temuller)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80f3eecf7594d08c4a5b3704e011338785e3859a52c8cf2e8bf7d548531e5f3. 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/HUA253772705.
A padlas: Act II: Utana repulunk (After That We Fly Away) (Revesz, Kolyok, Herceg, Megloko, Torpe, Suni, Radios)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd246f7ea483a66eb1bf23d2820952b676938c35de02a36df0b5d1685c463146f. 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/HUA253772713.
A padlas: Act II: Orokre szepek III (Eternal Beauty III) (Kolyok, Herceg, Megloko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2817556e8594140153f3574d7786f8a666ba2aaa518dd5b3f931643f3f746187. 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/HUA253772715.
A padlas: Act I: Radiouzenetek (Radio Messages) (Radios, Kolyok, Herceg, Torpe, Megloko)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ee3b6b6618cdeec2c68b85a21946592078b6e881ead2c943c3cfc9bebb93fb. 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/HUA253772707.
A padlas: Act II: Valaki hamisan enekel (Someone Is Out of Tune) (Suni)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c86adefd0393fe3e198e2a6455d2dc248daec1e8428b91f244c5b8b7c56eb7. 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/HUA253772714.