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 0x72786f3ab60fd7164ca26be1d500456d866cd49346f6c14745b12c4e6cd40c0d. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/048ba5a1-209a-4fa0-b92c-15b355b84c04.json and https://artists.proofprofile.net/proofs/artist/048ba5a1-209a-4fa0-b92c-15b355b84c04.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cinto Que Aperta e Essa Fivela Me Machuca
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 0x227b7756743f7e101b2d18cbefee2735cce92e1a0a65a352dd6193e02dd276b8. 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/QZHZ41939457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f74a0f84efbb05fa4b647bfed60ab89de124a45b58386b8dcc7ab3d0cda0d1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZHZ41939458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167801586ce7a004fb1c42fc36cad5d65bf8ce4741b2544ca2860498252a9b97. 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/QZHZ41939459.
Relacionamentos São Extremamente Complicados e Meu Cachorro Sabe Disso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bd01ecb3671ff35f56041076ec8177249be1df9329f94f5fb737a068c53322. 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/QZHZ41939460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0483f0223688445bb33798139c46c85716b957acb51f64b9fb77ec7b583dcc. 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/QZHZ41939461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b07d0c2c94efc658a1aaaa68334e4d151546bf2b26b20dae7b9584b437c9b60. 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/QZHZ41939462.
Talvez Eu Pudesse Comer Meu Próprio Coração Se Ele Tivesse o Mesmo Gosto do Seu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfd6294cf58325b7a03f56d4ee0519f7c9458b2711a2f351d1a765e8d380785. 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/BRTRB2089886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e68a79151ed8c1e3a6dddb9feda2b64cce8170c0b1d7dc5306013a49c74a22. 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/BRTRB2088930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabcddeb29a2c366e53b828169500f9cdeacc667c1d0bbef8bedbb16745bdf9f4. 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/BRTRB2028873.
Meias Novas Esquentam Mais do Que Abraços
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeaf1d442a5f2bcb3a5c2f36b4c7b26964d47bc11dafdc6298814fb800ade43a. Chain 2 (Bitcoin): anchored in block 960193 (2026-07-30T02:05:19Z), 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/QZGLM1991460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6da2de4bfcc4777092f4558f70c861dabf1148c12f0ae67b20b800a31e98e9d. Chain 2 (Bitcoin): anchored in block 960355 (2026-07-31T05:49:18Z), 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/QZ5AB1980276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d2ff92a77895832d6dcfc6961a76fa7f47fbf840fdd6e3e710d07ea2dfb5206. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZ5AB1980277.