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 0xfb204cd62f79617d4fad32a3ea011cdb2cb9584c215da6d7fc7a57ef27bf512f. 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/bdbf3a4f-f009-4809-a0df-8f8834f1ea84.json and https://artists.proofprofile.net/proofs/artist/bdbf3a4f-f009-4809-a0df-8f8834f1ea84.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 0xc332b9980e24d8aa526f410897c7e29596b695ff1bde957b6c8c8c98cb5b5cdc. 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/USUYG1165708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c917cff53db962190010aab7540d461c5c5ffba08dc2d8a78990ae096863ab0. 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/USUYG1165709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ac266253f5d9d0f39b22b10ac3725f55b63c422a36fad521d5fa5c32f3415c. 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/USUYG1165710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06530d5236b3488ca4d4f74e7cb4ff050f7aedc82cc7cc55f234a7745fcd605a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1165711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x774c12b0feea5411c6453f6898ec7a70ab0c55fe61880730113b7dac59774612. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USUYG1165712.
Close to You (feat. Yung Pinch & Yhung T.O.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4557cf794c52969c3a1fcc91c4189f82af8dfe288e8dd478c096ec6eb1685fc5. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USUYG1165715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e19b6a50202cd95c79bd881104b00d3f318b1ac926086a33a141f2dee0f096. 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/USUYG1165716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa82e9ad9485f8c24d2878650729bf6f8192fa15ed044719d0757da404b445192. 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/USUYG1165719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971104ffcce8b3660270886959bcfd4b914e00a18d79f122cf1878da19cec2a7. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/USUYG1165713.
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 0x800b2400eb24494cffc56a4a04d02d540d769d22d9187ebd5188a9220e541780. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USUYG1165714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e7a728e364200d7d1d8d60298cb963f165cdbe02202d081a815fbcf730718d. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/USUYG1165717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd03ecc2bdf0f0d835ecaf6f342eb91b13c8054af0a4fd940969e4db5df4b5e4a. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USUYG1165718.
Intro (Gangin) (feat. DaBoii, Slimmy B, Yhung T.O. & Lul G)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f45192b6b0d99134039b1feaa25454c872990e919d863aa7c5c469e245c12ff. 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/USUYG1218290.
North Vallejo (feat. Yhung T.O., Slimmy B, DaBoii & Lul G)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3ae4e761572d1c5ed86a18141578be5961fa39583379277f0562e0094eee75. 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/USUYG1218292.
Uber Wit A Dub (feat. Lul G, DaBoii & Yhung T.O.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa1ce5a10438fee33b7c0436721531ce09d2bf0662465c0fb023d9aba0b27c3. 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/USUYG1218296.
Made It (feat. Yhung T.O., Lul G & DaBoii)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe302fcb1650631fa710439372c3cf0d25828003dc609bd7a014e14ef80722eac. 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/USUYG1218289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71d5899ebff23f6192d71db792b84f770b39998665629b9107a474d3e95d74f0. 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/USUYG1218294.
Water Fountain (feat. Yhung T.O., Lul G & Slimmy B)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ae12ea446470068e32d3c1c8e8c225b8ad79b76d7e556d168fc6cc07047a0c. 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/USUYG1218300.
Hood Ballad (feat. Yhung T.O., Slimmy B, DaBoii & Lul G)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x731f3cb1ba2c753e812cb02824d48bfd39df3b67cb8c6d6717952e1a331ae4f0. 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/USUYG1218291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe302fcb1650631fa710439372c3cf0d25828003dc609bd7a014e14ef80722eac. 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/USUYG1218289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006486aec7333fea6c9e1884bfdfc052ce1253bad1ec70b169b2655f3e8ad612. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USUYG1138494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7f03751a292f8920c50e57bf2b3315d30d7d9ca16de2e2fd07df4be4bdff9a. 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/USUYG1158322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfc8a5123c2dc3b571f5926a5601609c7d428c156edd06940c2e175ecc404e6. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZK6Q2345035.