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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d86ff47b5a5a6f2121722dc9e8e6b6abb6cd60f86e3857cf2340369b53f13e. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/356b9f9b-a913-46e3-b77a-ecfeec020be1.json and https://artists.proofprofile.net/proofs/artist/356b9f9b-a913-46e3-b77a-ecfeec020be1.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dba3deea9307515b048b4bf6d9c0be7fcc43d6639fc48b1a10730a5565ee61. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:29:01Z), 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/HUB281203104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9b929f03059da4949d7a506604dc08d2a022a8c0042c78ef1ca5d34143d965. 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/HUB281203111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7a08d02837067cb95e8b93a0a1feaf5b9a23ad11b49826fd6b8b666ea2edfe3. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:49:10Z), 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/HUB281203118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x365893a2957bc5b8571e10753df0813649bc7fc4e5c3f4922336deea2ef638d5. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/HUC651400003.
Boldog karácsonyt kívánok, mint egy idegen
Filléres emlékeim (feat. Lábas Viki, Paulina, Tarján Zsófi, Bagossy Norbert, BéRCZeSi RóBeRT & Rácz Gergõ) [Bródy János cover]
Filléres emlékeim (feat. Lábas Viki, Paulina, Tarján Zsófi, Bagossy Norbert, BéRCZeSi RóBeRT & Rácz Gergõ) - Bródy János cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97217241e750370510e25c7b7570ca7d247635502ed477cae305ffa3e475172e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HUMAG2500085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87b697dda3cf55f0716f67c83331055cb807acecc3658171f7687bfee7514d16. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX202459425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001555a4d36bc790fd18436241a1899bb053f89a6b721c042dc43e3cd9415ae3. 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/HUB002300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x001555a4d36bc790fd18436241a1899bb053f89a6b721c042dc43e3cd9415ae3. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HUB002300028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda992bda478dc9b075d5818322341497ebc8556cdfb79d6cb5eb7a4626a2124d. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T15:08:54Z), 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/HUA611903096.
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