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 0x02bd25901ff9ae302ab34b9acaf3eb40df9989cf9696c0c0631ef2be81f59c7e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab4ed9a6-56e2-49f6-924c-e320ae77ae99.json and https://artists.proofprofile.net/proofs/artist/ab4ed9a6-56e2-49f6-924c-e320ae77ae99.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 0xf0cf9da44f4c3135b45f00c94fbdc8b687030f48f20a5a291e871976479b7401. 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/QZNJV2059324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6139ed5c0fabee0d43c8b9e4f015d8fc82f1a4acc699e7f82768bee658cec2. 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/QZGLM2135002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787933b469a6f505cd6908e98bf6f29dce55594745b5d34c8184adcb2e756017. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BX08N2100047.
Na Piroca Eu Vou Sentando (feat. Mc Gw & Mc Morena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47c0a0111e98abecfdcbd23ffcbb3e97a50f25996d366c9e0debd78618b977a. 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/QZEQU2135478.
Não Tava Pronto pra Te Ver / Princesa Favelada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3221f7e7aace5cdf554f7b7343b0538e089f93e07f0196172363d55e2fd3d7c2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/BX08N2100088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b81a3623660115300a6355058cae4d5b4e5711292070a00b13dcdae886d7526. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BX08N2100130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b301a1195045e1815cd791ef8f7f4fcad476e533d1fdbfc585eb4a45df87eaa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZHZ62238704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x030696108d223f19db88e9f475640dfe82c505751b27fb363e9c5a31b4ff2baf. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/QZNJY2285540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13da7b14686512ea948511d9d86cb8690b8227fd225a2925f3365c90cfa6d093. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:02:06Z), 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/QZW9M2242962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf844b50777c3a41fbd65ffcc38f35b82427b869a925820b18ec1da9f4ad2a2. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T14:08:18Z), 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/QZEQU2251922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049844e79086194808685541937803f5ff541f541e09545e773da300b5293eee. 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/BK2OA2400265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa177d33b8b8494e5113ddca33d477b801baff61df841ad1289e3e0a19511efba. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNJW2027661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25443f648836f800826a3d2cdaf31664713ac8c4d5ae75e37ab9a1554c5be61c. 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/QZNJW2038884.
Se a Policia Não Pegar, Pode Deixar Que Eu Pego
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d467bb5a1396c80d42a3f8e8e1a26db7bf090e0ef6ed9ba627f14581824087b. 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/BXJUK2000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf282967fef54859aa74e142d26e224a00ff675aa2efdbcd34d9313e7b736fcc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZGLS2520805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe499fd7a0f8765bf366d1803c11dbbae2c6a2c755b9a3a7811b9595421ef6bde. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/QZW9M2242946.
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 0xb5b45b4f573d68ce421d29dfe90b938ad3d4f4b764c0d61b87b08962930cc07d. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZGLM2580357.