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 0x4cee29f587d0efaab31c0a253f3d1a8ab0dd1c099022307ef9c0bca3a9eadea6. 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/4530178c-6a23-45bb-87fd-bbba98f3e03d.json and https://artists.proofprofile.net/proofs/artist/4530178c-6a23-45bb-87fd-bbba98f3e03d.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 0xaa29eddf89c534d19854329c827194859c6ad8c34e4a2cf8d36dbdd3421b8604. 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/QZNJX2440884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1ff100e8390cb369d8c71498e6ada4fd7bb07c235162753ea983f054752f64. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZFZ22471289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775008d1b6031db224b8f57d16748e87e11dbc24d574ce0d9b1c2d965eaa03a0. 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/QZNJX2488569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2f8baa42133ed74932a8cf5fe9a0a5f59ccc4cd53550573282830937a02d8f. 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/QZWFE2356709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a4af957e9e3452fb8b57a56a1efb143ecf2883c2f363b5a5846d61e0456a80. 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/BC8182400017.
Congratulations X Vou Encher Sua Boca de Leite
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3768e311e652cc66b26f0580ba0271807f63461960ba97188191513c4f5f38. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKCMX2300094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25c5d6e309b7e6e2f8099cdd7d5c04502ba85462965424bfae37dd26c5841dd6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZNWX2305587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db1dd4bb18425889930edbc0d08d3978482f22e8b25fc3b89299d7678dd404d. 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/GBRKQ2534999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x589ed9c0790712759561b01cb875ca39d9dd8ea510c2b22c630d92c204d247bc. 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/QZGLS2503570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4916c5015b49305a269ad802df7534c12cb27c064ce1a2e1d4293287fc937ed. 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/GXF9Q2410378.
Mão no Joelho Devagar Vs Senta na Cabecinha
SANTINHA FAZ SACANAGEM E PUTA FAZ PUTARIA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d2114d4d97e2627097a20d4e7da72964ce8db29f19b6c0a88caa2360b5779ab. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GXF9Q2579566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba4659d150ff0e36a4432d358e0e16fc785b6c67f012264e227010aee8dab7b3. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QT3EY2499172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb4a7909dbc0faab470e3e2cb886a86b504cafc952a93474f682bd05ace2979. 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/QZZ8B2412673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67afb167f7cfd21106fcf944f71d063bd9ad5b1bf2c6060a64d374d63122e557. 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/QZWFU2427568.
COM O BUMBUM ELA BATE BATE, COM O BUMBUM ELA SENTA NA PIKA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b5d026a646f14df7f9d09926becfd67fdd2b3faa7dea54d66d1970c2c3ee47. 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/BKVSN2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac959ef9bf5f00fda2f79240f18ae82d8d39c2d68de090a0d5a407207454d863. 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/QZNJW2525271.