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 0x2f580acf5e30f6717de8a449a6202e584bfe6be602f54f9165a8639bb8ff8ae2. 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/ecd31d1a-2647-40e1-902a-f783ccd384c2.json and https://artists.proofprofile.net/proofs/artist/ecd31d1a-2647-40e1-902a-f783ccd384c2.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 0x2f808bbf631bb47aeb0719ab71a418fc1c9b2a1f9343ce8a469eb5ad4faf2131. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM21679273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb95de4782be4f64fba0b43f6cb8f04f21219cdda32a199bdc34fe05211663224. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USHM21679276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a6e6bd079453869758e5bcf974dc78eef06879511e824e51b9c2a3b51c2ee5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/USHM21679279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea8dad9c728eff7856bbb452f68f65383e8f471174d14f3d93e7c7a774c693bf. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USHM21679280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97ecbb8a22b469215df83459765904f646776f7f6cffe694ee0aeaac5a62d7f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM21679282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0123f692fe7f80ad33b49d77d40552b95fed3e64e73753902cb02aa9c97b3f09. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USHM21679283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x435fec98430744e91fcf4cab9b13e451a64e6f4843c7bb2081c4db657a1f7e26. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/USHM21679284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c465086bcc04bf879b0d35d3c2fddb0cde9a279b64aeca4a6b1ab7c29659b5a. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USHM21679285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d5167283624b07f8542b1b1293784cd93e484b59a01a77256eb893936403d5. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/USHM21679286.
Sentinela da Manhã (Renan Pereira Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f8476b5b7f8955e2ad1684f1669a8bb0caaa3ea1e344ede716ee262ca927754. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZMZ92516379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc807e81ae24fde3f757382efaa052b79e26ab57e501c22b623c3f0d8513b9567. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USX9P2591268.