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 0x4f974a290fae92b1af672d8aa7dbcf53c32bde606a157ce99609e6fa919cfc98. 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/78552406-3abd-463e-adc1-ece4a37dc469.json and https://artists.proofprofile.net/proofs/artist/78552406-3abd-463e-adc1-ece4a37dc469.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 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 0x7fbbc581c9a8536677e14d25c0e26e486b81ae582dc5672b3deb425f806735ff. 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/UYS261900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7351e499caef6b0f2c7e74159598e28066a6c6422af3a214783955e87e3cc8b6. 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/UYS261900063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf612ee02140e7f16cabd1c2966b302bc3cf6096681d6700bf919b208ebea1bd9. 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/UYS261900064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e5c78a5adb7a13e2bbca757a5e818f5efe97683956490ab20ce1e19f2f3dd6. 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/UYS261900065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a435ab2d12c1a7b917f28988e79c318aa9d53f52d77a4997c3d79f38604026. 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/UYS261900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8e5d073d6e0db07becf03d715dc2d22fa12257bfb5aaec4d5b2148a1732184. 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/UYS261900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ae3b6022ee1e52207bba1bae287c675fb11c1dcdce6852e4911e65db374b2e6. 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/UYS261900052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaf68f289bf34c6fe4d42d126353154f371386a464240cc97753299adc086be. 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/UYS261900053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc158c8830417abf4b68eacf354bff1690d8a949d31f229504c85f34be0f10100. 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/UYS261900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792edb433029f4d73bf4fd5e88f14f815d90f8e9a625e7c3b7fe0ded93e99649. 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/UYS261900055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a97201885adca08f042b9219f4e7615a53bd1d91cc6f1f18de2c2c1371170e. 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/UYS261900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2434f1b63ec4e59df3f5895fc0091f8d357ef3895e1c64a514f252e678fecd. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/UYS261900057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c06ebdd4c7102ba40b14bdf4c1a5804cea945b090d14d916f187a4d522e8db6. 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/UYS261900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0cfd2bd5cba7d738611463e18bcc07ac98b215227dc5383f40599e1a603b34. 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/UYS261900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826db6ed529d0348b51e9da7af5f2c757be86f10fcff83a626885dd50c1e9086. 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/UYS261900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd273c55d27168bfb490ae5ef22e713ba2039a04830a3a583c0694a642ec81d. 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/UYS261900061.
Julen y la Gente Sola Live On Pardelion Music
Sirviendo a un solo amo (Versiones de Fue un susto)