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 0x342af7653c90bb068f0c0ec127fc7c8710cfb846fb3fbbb5589b5f682723f77f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7828b871-4135-4a05-adb7-88ce8c7a91d1.json and https://artists.proofprofile.net/proofs/artist/7828b871-4135-4a05-adb7-88ce8c7a91d1.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 0xbc2f6ba00a2ce73fd7c8b6d873661e7ea9f41c2336dbbc0bb7b1707c8bfedaec. 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/HUMAG2200311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27f67fff30f4bb7bd3b7cac474b26e535d66f42f1f90d326b2c584abe699977. 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/HUMAG2200364.
Hazafelé az út veszélyes - Náksi x Erik Ray Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd217b1cf6d44824d8f4107b7dfc799b299a481419a45b15e72a108cdc8362892. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUMAG2200314.
Turn On The Radio, Vol. 5 (20 Club Radio Cuts)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb285c1961f8a2ed5caefc064c0d74a7d7541bca9368a1939b26d5a02f0721c4. 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/HUA220900034.
Jó Nekem - Wallas & Gabriel B Radio Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x368d37bca9166b1a9f576c65cc3524c1d5a60732e6b0635abfd24211fecc3231. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA221200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a67b2179ddaf8a591a485f9b0c76bba3d0579b5aae5b265d0322b9eb63e9a9d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/HUA221200059.
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 0x9535c961d2fe4f684ed602c0c383c27b6bacc84d3b710c0449f0f9680de130f4. 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/HUB501600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0a4dec80a5547bf506b7b146b17f134deae2fc0a4b1ff792400b7412784028. 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/HUA791400705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb329efc28b69b8592370f05c55e9c84d3a42a36b7f638ebe0ad7b0a0b49890. 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/FR10S1776786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca1b3f52814de5e3015d8b075af17c1c12de1b5a11788f5277424dbbb49ec96. 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/FR10S1785389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dee7b725fae16fe06d832673ce5a2d65243256854cd2869a0950371897cc0d2. 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/HUA791400769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb9a29d1b71f32e9a585efd1139548ee69deb5db90fb6de1261fdfc6860cbfd. 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/HUA791400806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0b6c3e6de85de25df48b0977572fb62e55f364b097c192c663883abcefec71. 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/HUA791400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa18b0a31df993cc503cbed92b1f82e10db5f40de4fda8e695c0e26cfe6dd33e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1785391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50769b284b6fb03cf28e738f23a071926d464e34cb0268a5503e9191f6f9fb42. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1785394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7132c991d2cd84d6908eb0aa829273a46855ff1715c488703074a71a096c889d. 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/HUAMV1800008.
Nem Tudja Senki - DJ Lennard X Gabriel B Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc180ce19a5f27025b20b36e9726c27f445d001a9af8c3f04a9d91b966959d1c1. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/HUAMV1800009.
Maradok Távol - DJ Lennard X Gabriel B Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9005205040b061465c6aa3faea85f9945b28daae2d5b5c017e0927c42d526397. 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/HUAMV1800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291c827c82a0d340bd6750dbd368d3b8fbece798b011062cd5976f2898af21cc. 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/HUAMV1800022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6952b2e2ab9c9d7cfccc9c28dee4f96a485ed37a8cd8f3119151146e9eb55a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUAMV1800023.
Erotic Moments In House Vol 1-3 (The Ultimate Digital Box Set Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fa9e6e70370e03a71647d5abc3ac655b51bdb8c543dd234f07e4b5ccb4c477. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEL020280011.
Hurrikán (feat. Majka) - DISCO'S Hit Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480a9c2f30fa7f9a8a1a18c0162cb3465910d596c8886e01590a92e84d4e8a40. 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/HUMAG2100041.
Hurrikán (feat. Majka) - DJ Lennard x Gabriel B Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3038025e940b7cf01875271f6e22e25faa8d3b16b78920c0cf2842f3b448e810. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/HUMAG2100042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51227d77d72cf12da476ce578ead9d3940f93d4d0f7fa48e000444792f0adf42. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/HUMAG2100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8dbad82983ab21aed2a4c79cad402d2026b6b23fb735a8eb5a5f131ec14830. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLHR51125423.
Playground House, Vol. 6 (Big Room House Collection)
Club Session Pres. Ibiza Club Weapons, Pt. 2