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 0x6a5dc8957ef073cb9d54ee068f395918601abcfd6a3961115bb48194b3c4b77e. 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/56407361-a945-46d5-892a-73d8593dfe9c.json and https://artists.proofprofile.net/proofs/artist/56407361-a945-46d5-892a-73d8593dfe9c.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 0x22809774039b65696420a44ec93d4d77d7e23d5073c2e0747b3170e61d0b19d5. 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/TCAGG2210558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d47640364106678d94775d1e02c15504bcb99693a8f5af1773e84c7973f49c0. 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/QZTRX2445343.
Problema (feat. Kino TTF & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efac1592edfcab8eae4dc7928b213620668bd09efaf0385f94c6c5b57be61a7. 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/BK4DA2454462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe100d3f9513d9ce6d10fe249692f24e89423ac1492e9f69a2bc07e8007698ff7. 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/BK4DA2427474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9426d022f997ffe65233203d6e031a730186f757713f536fc1f13d12856cb21. 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/BK4DA2426873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3daec10952ef90a42813a92f9a1b39d9f4c6f352402b84eb725900e9510bf7a0. 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/BK4DA2429371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x282fff34f6fdf68e830e24e25a0eea3cf7e3207748a481da792d4a3b768bbbae. 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/BK4DA2426894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd934356b0183a8194ae2f9c35a0439278ab680b546246a56473d45224db7c4e5. 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/BK4DA2429369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff437d353210d239021b866109f3e0413915aa8ca27976563383d5bc2346b1b. 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/GBBPP2163025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb96c43e06083d928a476131b2eef8fe083e0de93542ea95848f9578745f0df7d. 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/QZDQH2512591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2264abc08585474f423b43746652d9d68b1073f959a9a7915594eda3fa4c2894. 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/BK4DA2508954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4efac1592edfcab8eae4dc7928b213620668bd09efaf0385f94c6c5b57be61a7. 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/BK4DA2454462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36cd64ebc3e6958dde65e20491530d483b553e0ed09670fa41c6baef73ed711f. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BK4DA2453468.
Lujuria (feat. Kino TTF & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c47aca5d7ebbdda202985b543125675381e1bdff2bcea344aecbf6b85513529. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BK4DA2447401.
Pal Ataúd (feat. Calidoso & The Chosen Few)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9426d022f997ffe65233203d6e031a730186f757713f536fc1f13d12856cb21. 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/BK4DA2426873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4873e5205825f8fdbb5701ae14b8efa68a54314711662725c278f0655f0aa94. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/TCAHA2307919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaf3051a2916e0054ae79a26bfff0460afa9c709fb950153b6198c88b0d61c6d. 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/USLZJ1993215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18e6ab0f0e452de2c53bdf6562535ef0eefca505ba916029896af13ab26972c. 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/TCAHA2352647.