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 0x664b743827cf88b6ec6d44cb66c0ecc8847c8a21e568a87006113efdb29ea7a5. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f00a3f21-f5ac-4884-9ba0-6014214d6376.json and https://artists.proofprofile.net/proofs/artist/f00a3f21-f5ac-4884-9ba0-6014214d6376.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 0x6f17e501626189a022f4b26236aec42f4bb60578b2ee666d4a54357050368dbc. 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/NLRD52250949.
Sequência das Mais Tocadas X Funks Mais Tocados RJ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01db9a4cdc3ecaff456da296dfd66753f5ec61ee10b25869c4b7e80583ab5772. 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/NLRD52256098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abfd96b82067a7e3898ea8876d8845280826fae9a8e4356a6975657a4e238cd. 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/NLRD52256099.
Sequência das Mais Tocadas 2K22 Vs As Mais Tocadas
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6380f5bf8a257dc30a930aacd3a22ff1b2128df455cc5b0db204be0978c1a4a. 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/NLRD52256100.
Sequência das Mais Tocadas 2K22 Vs Os Funks do RJ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cff1383545e0791b832a81335f4ed54e91a52c5a1eef482961154f4fa886af. 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/NLRD52256102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471c3eb2cec5809aebbe947015c10283d39ce2ecde6743602a3393f9c26cddb8. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/NLRD52253267.
Sequência dos Funk do RJ Vs Funks Mais Tocados RJ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd94310727ba25a1e52cf00a773062eee4e3dc7575b33421197e3805d8a0166a. 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/NLRD52253271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7145922290b13932b706295ce9a424b09039bc9b2f76138b6edb0bde1faa72f1. 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/NLRD52252914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafde9b937c2e92b004151b4e2edc8001923dfa27163b59670ccec6350c107608. 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/NLRD52252915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eb3a4619a136d2efc25a08b8762caf1f2c2b7dcbc2cdaa7cefadeae737fb39. 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/NLRD52252916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd8a3f84d8b656e310ce15645927ae3d5eb1bf4d9c288060b0cda668414fd52. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLRD52252917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd853edc3a0eb8d7d5ff351edd3fc74f5e24b5c22d60342457f47c8d352a43163. 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/NLRD52252918.