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 0x7a120a11681403c94d836e46d7529af3449a0c658e7e0807f4f524aee99dc510. 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/c26d9a47-8fe8-40bd-836f-fa52a88bc179.json and https://artists.proofprofile.net/proofs/artist/c26d9a47-8fe8-40bd-836f-fa52a88bc179.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Taco La Dentro Ou Deixa Eu Penetrar (feat. Dj Elltinho)
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 0x59eeb0f2738bb17c6299f14278e5f33e00b1d8438bec8f2e652532e63da3563f. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZEQU2039896.
Automotivo de Street Fighter em uma briga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48489937ee0a543a98250d478cb1aebc94356efe925169c49bb8cd8dee9cab50. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZL5N2437485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53bec15fd3b704d0c9311be3d2cabcfc8b2873b0e4a8478aaa514658521bfc3c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/GXBAV2517228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabbe6f6a3143cbc5ff2f9d54ce053a27a05bc4adc28cd9057b56ad573c63da2f. 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/BXBXU2500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef6b36807558bd1badb27a8510a96c7d4f3211f991be7bdbd9fbe8c0e387b145. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BK3TQ2500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb5ee7beac9e3ca6c43e579f4988d5ade982f92209c935e30ea3916072d4640. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BK3TQ2500082.
Fuder Teu Batalhão (feat. Mc Gw, Mc Vuk Vuk, Mc Magico & Mc RF)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea08793b8befa3272cc414fa87bb59426b7bd92a353a0f636e7a45222d98385. 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/ES47F2300395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2253dc9f0285f6da89ab327a7ff4f6188870b633e0cdf7df19c1aec430ce980c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZ5FN2422279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee50c5dd31149072a53ef8833af6278fc60fc5e4d2b3932bba2609c43e1b417. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/QZEQU2141765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88028f9f4fd4959fc60a9101961eecb57363727d0b0c277ee755eeda1bed0c5. 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/ES47F2300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf527c2dd38593ebb7d13e3d248d05ecd9df69b864a348b28ba7cfd5d1dadc976. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/ES47F2300243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea1b1cdd03e9cbfdd9e0dd71f7bb7ffe786d5b2ddbaa9a3cc907217e43c50bd. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/ES47F2300216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x247497b628200664c675359eb1b8b21b4c4c8484e70147663a94904fd9653566. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES47F2300217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8b91e4d5202cf7fda7d45aca0bf7bc249b73202b4eb78e5a7c972b600958ec. 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/ES47F2300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a004cd358272db7865c71afa1a2015a256ddbabf4b1a3ee37462a3bbffc2dd2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES47F2300642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6ed5193f2fe1e2e867d25822073831076d1af8c7b72af04c74b56e5bcccf906. 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/ES47F2300475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3893a65676ad7f6a338b25f454446f1ba7bde57f946ea469ed371ae5fad28dd. 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/ES47F2300477.
MTG Desce BCT Suadinha (feat. Mc Mr. Bim & Mc Gw)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf630b70d7fbc8583f62558538592fb40c1f2736e6a5e391074f5161cd0b7376. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ES47F2300478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac5cc543c4d7c8fad2228e45b067724ee63452c8240920b3a46bcb5c5be7110. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES47F2401185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cb938d95b08ece6dcdf3bc54c0e550f74f3c2b23bb145bcfdcab0b8839bf4a. 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/ES47F2401063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547d4d8eee135ff7c563487f8df61c1eeeb4ef62e43e27bb12bc7c234de36028. 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/ES47F2300926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc28bb72e5fa222ff2c0e0b335c99064de7e08e4e07668bcdfbd47e16012e33. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/ES47F2300927.