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 0x4a6f05b849e2dd0f71407c2773a07de532fa31c83e5df7bf9be7631cb507042b. Chain 2 (Bitcoin): anchored in block 953721 (2026-06-15T01:12:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8afa1a6f-797a-41fd-8a59-3cd6b5bbcb3d.json and https://artists.proofprofile.net/proofs/artist/8afa1a6f-797a-41fd-8a59-3cd6b5bbcb3d.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 0x163078cbc44592354213748d2036149f8e691be3aaa40682c28da09119494be3. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USCGH0932218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3783e033a5b438eea43ff8562cf10f2def07694328f93f7aaf718102540ce3d2. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USCGH0932224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03273e43486ff9d125be853f0e36e09ee1f9c5107fd93ba0849a12ed8dd70e6e. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES71G1625448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdfd1ab4d4fc4b2d29c3e4024e1962741957fd55e47658720ffc54640c4f35e0. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ES71G1625449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327e39c29a657a4fb075d640f8e8ac5b603a299c06fce287e7ba861e718ff096. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ES71G1625452.
No Puedo Parar (Gypsy Box & Señor Gaviria Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b3136a84f19531daa70ee9aa7f3642c07297aecd18c833ed9fccdafa7e3861. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/PT2HV2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd052eeb8528fd387a58c546498d44e31887922b36a34fa49ceb6951d13645c36. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/PT2HV2000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb823befe6a20f9ff145ad78d9608eb16c33b5d07cae910c45aa16c07c4bafbd0. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/PT2HV2000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28fb376080b658652fbe3824b1365fc02e77c9b367648aa9cd2c1120dcfdc400. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/PT2HV2000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bb4fdf33a40f00c557eb62f753d55829bb5fac2579859b47d4ad147aab0ef0. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/PT2HV2000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a18b14e34aa71d8dd57b3679547ca9857f5c2af3e6fc8e6fd09bcf05841e54. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/PT2HV2000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x029c2184eee23a3d32e8463161c8157d59764b1a3c3b605aaea86c9fd4c872f1. 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/PT2HV2000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61e54c271afb8548b88e86987d88b4a1db45ceb0dfdea1d8683a91f45a87a40f. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/PT2HV2000070.
A formiga no carreiro (Versão Kumpania Algazarra)
A formiga no carreiro - Versão Kumpania Algazarra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b491abaf87147479e7039b704aff60ffd5da71950fa8bb04c0d8412efd2f56e. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/PT2HV2000102.