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 0xa196e509022ccffcef8afac1f9b1731165991457edef9672b790dc79abaab5a7. 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/41054491-b649-499f-9f77-995216853249.json and https://artists.proofprofile.net/proofs/artist/41054491-b649-499f-9f77-995216853249.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 0x77467f988096f942eedf46db33303276d233bc98cb67a579e0a33bd9ff6f31cd. 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/QZWDE2397403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a494f0a107dea6338921ef58182f7da310c54661f02a70018044541e298290d. 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/QZWDE2397466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81d26cf8905bbb9bf1fcbb4af4298e611ba423069ac3a2284389f36237caa8ed. 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/QZWDE2397447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa67eac2b46d22ff15c985d59c96f268d1feb4af7fad64178512587d3937b6b4. 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/QZWDE2397478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e45f9aeb89078a59cbd7f91edc7b4109a4b07bbb2cf8273b25e89c99fcd91b. 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/QZWDE2397420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05e7ae12a9e0797b646b81066fa636cab52e0517fd4f116c3b31bd6871baa7f2. 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/QZWDE2397440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64579f359b78e4b3153fd49ed61dbd62a6ca00027d59281564a04978f1a51962. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZWDE2397493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b11f53b3cef19085d110354f6d5405b769ce23ae4ded53e86fa0e97357a201. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:54:21Z), 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/QZWDE2397432.
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 0xbbcf6baafc63c5596edbb5d0dd7c3a4e785237ea4631c89446b6f5ecd8b75b6b. Chain 2 (Bitcoin): anchored in block 960157 (2026-07-29T22:12:10Z), 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/QZWV32326951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x601f76b07c358ca6ab69403d3bfab624200ca349c18dfb41d8d99ce6acbbc1b2. 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/QZ5FN2401151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303470a9b642675964911d2a166887dd0f007558bf03870393e7fb994a1789b1. 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/BXIV82340400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9494856235b676d047b497682be856d147d9efa20977ceb9b6b8e4a502b173c6. 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/BXIV82360076.
CRIMINAL EP “Relatos de um Jovem Brilhante”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb482363ced3243a5902cf9bc1d98ab9c7dfde7e4c20508e2b3e2747dac67f0c1. 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/BXIV82376671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x242ca3747a355c894f19b274a05da89b6fe0d508e64b1e30bc3cce81112d918f. 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/BXIV82386722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23fdb3275a9a836f73699417adb91bd3cd5435210737318733718ca8b47be880. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BXIV82339124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fcf35f4a793c33bb1afc49e90aa6d46691359ffd5c35556db078a6850bc95c3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXIV82321848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fab93c90d124a622fbb68570d4c43a2f225d7df9c070bf6531e9146854d8e0. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BXIV82361275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d1ed9ad1995e16d6ee817afb1239f03bb23db8805b4d0a751ae667ce06b74ac. 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/BXIV82376923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819a0d6ebea1dadd54bd5a68b90deec9849b6f0c2a56f236869f1e4bf4ef321a. 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/BXIV82213705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1669ded827dd8375217354e354dcf44f3726ff1615532793f6f4ee70b2a10f. 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/QZTVM2263934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f03ce95a1aef41f73031000033ee758e0d74e7e59328b9252cc1e43119331. 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/QZNJZ2272541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x787a1e26e41d130eaf9df493ec0daaf89e1a2e435057ba6064ebc9e155c41422. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BXIV82280746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d191090d5b62f11e10b4bac561c3f10b01a53ebe906a10052a7041782ae98dd. 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/QZHZ42256194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cb9e07f71eaa52024c046c0056688f28accdd7d997432ceb11f27067396fe8. 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/US7VG2220871.