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 0x2d9d814e861cfab1e468507f7db17029426b6c939ddce2b805266eba4eb3f8e2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af09252e-3c72-45a1-8dec-fde97c7753be.json and https://artists.proofprofile.net/proofs/artist/af09252e-3c72-45a1-8dec-fde97c7753be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Piquezin da Marquetada (Slowed + Reverb)
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 0xe83fd4c5d5d8dca450ebc00466438120185ceaae65b96c068b79a61a81969804. 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/ESA112564966.
Ta de Castigo Ta de Dieta - Gordinha Sapeca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1228432437438447327e403a59427a87b1096df27d6c3ee09ef1da64d66aa39f. 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/GXD7V2533536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5470129573b953a089d8138c9721d27e5d524fac68f5e51d71eea4680f9785dd. 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/QM4TX2565334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1b53210b81c8c2f668deb3c67ebe73bd2ec2dfe37d00a40bbe6c4de7180195. 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/QM4TX2565335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fca24b884b19ee431a7154caf522c199fb10d7d91c2f547c8830ecff8fec1c4. 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/QM4TX2565336.
MELODIA DA MORTE - ULTRA SLOWED + REVERB
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72c8927fa7cec8ae4f9b0e064c6af35468b5de5fae3fd1f4ba94aeb7a8e81fde. 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/QM4TX2565337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c020d0b92d240d3a533c943eac7e60be0af90f84777bcd9647ebf3d99ac5327. 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/ESA112561507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cbe6096976ebe1f4dc5b7328d23c1cb8bfd0b0539c8d9cf9ccdc2c93e3a8bed. 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/ESA112560073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04483740ac28b3246e76c70d173b847e979589750e212107125e392f1b361468. 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/ESA112560074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6610a275f2dfe5e34e80f6ed45224ebe652498978857cbc1cdc963f8464b59e7. 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/ESA112560075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675a58da40d3bc41b4a4dad9386eb82a55feffb3e73a317988aba1fc40725d40. 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/ESA112560076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc2dfb2ced807329ee9e68ed33a56302e644752ffe907d11a60243674d93297e. 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/ESA112560077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15bae0bed0fda64b759060b419190cc6bcba9954dd10f3b48e244ab8207d6d08. 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/ESA112560078.
Vira Mortal na Piroca Vs Acrobacia no Piru
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454a68ec7e2c388d2449c360adf49cdb8575719eb7a88c3c7a7cd7c25d6300c5. 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/QZHZ62299984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc282c3808879358521a42c5f69e8e1a3dbfa62668287424c45d9e54eb396954b. 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/BCIH82201419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603e0bc112929dd6a3d78bd906e241a403c7e1c145610a6a68365c4092e015d9. 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/QZNJY2432021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750d12ed8f9dd4766a9106982b808af4cf55f649e290a94a690407d7186dc1b5. 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/QZGLM2424504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724bc10d5291d166216a8e79b1a7ede1359bcb7455208788d49a3f6611b99a59. 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/QZNJY2432023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b454124415da9cbc3f1073396fe8083bfc99180507b3d08bf01daba1d48173c. 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/QZGLM2424498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a8384677b4bba6240b41cb3e0eb4fa53e2dccdb6350e482b2e5494b0adfcca. 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/QZGLM2424497.
Phonk Automotivo Blindado - Slowed & Reverb
Phonk Automotivo Blindado (Slowed & Reverb)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7a864e3252c8d1379bcdfc7e26fca13486f0e4ef5c64e63e2d6eae44b9139b8. 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/BC3PG2304984.