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 0x4b667da703b97a68d5bc477ba74bbf7e9a9a977c5158328d69141344250b4371. 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/8ea9ac4a-bd2b-4d69-bca1-354dd8a0ff9c.json and https://artists.proofprofile.net/proofs/artist/8ea9ac4a-bd2b-4d69-bca1-354dd8a0ff9c.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 0xacf759796b21595849c3aaf9221529c9b62c7faf3a265545253bd04b514b6513. 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/BCM9B2500160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d10bf03156f683055bd3737d875207eac7f9e80adf5e2b99356be722bac37f4. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/BXKG22500136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696ab7dc6b6c524b428491552ef5c28b668bc19e9be8fa6964db1a754bb11488. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/BKDFK2500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2cb0821908076cc6de9b1f4ae7580f2c8a21860c8179e68bb08675f145cab04. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/BKDFK2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa7e8fa5ea18de66ae736719c42c4e0a0295e3bb8628b30ba05f3a2d9631cfb. 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/BKDFK2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f9d54bdecc706ebdd52d2d51c8523d803fa293e2a7d5e1606e8fb87ddcd9b4. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BKDFK2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0da3517004887e881c20e69948deb95e809a6763398c9839e03fa96a4e203cc. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BKDFK2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c6ffb360d62efb7aed60639cd4916956454bd54f1a26dc844c32f5bce4940e9. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/BKDFK2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3663ef51139f2c522f73197906b2b3fccd39fa07e54000d2663d26e869beebad. 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/BKDFK2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59bc19647eec6fe7c2d59adc9d4ce72a88b94fbd638be49999d2d72ffa2e9dcc. 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/BXKG22500563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0d45ba8d8f69e00f57d0900d456a7d71dfb234289477e53beba0f1afcf1d342. 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/BC3PG2501512.
Vai Tomar Catucada X na Glock dos Amigos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfea5f588c53f8eb7365d6d668d02320578f841db13695fe7c15026b5ec7c248. 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/BC3PG2501509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f52c062013336585a5fb120307a57d77a7a81a63aea55856767048d4dfd9bb. 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/BC3PG2501168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5df309aae8436ea6ca270b4d7251ebb66007b62fc3e8a1e1a77b1be80e838da2. 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/BC3PG2501165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x293168f0eec0e9b48d71dad29c6ef38d5caee27209e4752a7ab0ba98ec7af9d1. 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/BXKG22500402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x658eb3118d2d4f91b7caa548c73898274940469277cb4b679d2ea988b6889fa3. 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/SGW502590960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9370bc4b90a3764b7df013577c846952d98d059f818a2c4e1ca898b88183d348. 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/BCM9B2500159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2843329c8fc2fe82e4ed6b49970d2caf73ce6a0d222a920d424e223c66faebfa. 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/BXKG22500405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99ffb4800c646d122ab5f886eb5a7df8726d9788b1f6ba4dd5650c209691c66. 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/BXKG22500406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11e9c14895a533404aecdfac70e7d0ee93076217961e76905acf7f0568b87ac0. 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/BCM9B2500290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x188f51d8564c2e193020fe9ffd77e031285c733773a191e9985ec48e6d4bc501. 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/BXKG22500139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8910fce7e514f8c0109446d0a2308239c0120b30681767ea9a39702105cef0ef. 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/BXKG22500138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf965cb0e394220f9f9f20627d79ad648bf45b49dc57793180c8c2cc41cc1e49. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/BXKG22500238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9210d0d22335b41d3812e9d30373ddfe3d9ae069aa58c41b5000433573148d. 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/BXKG22500237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa58dc3503a1829abfc352f8e62ee2ea1a566e1b2243ee49a186e2600b74e9095. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BXKG22500236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5a0e58829b000572375810f8883ce63c425aa7f3454cd9975e7a82c62f1347d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BXKG22500135.
MAGRÃO AVANÇADO DOU PRA ELA BALINHA (Eletrofunk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b733129c126ee2b4dcdad7126bd4af486cee66116a77da2819c3198c9b86de. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/NLRD52252971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6019f73460518a3fb5711a7723bdfa6951822e1473bb109826c2ff25e4ba69da. 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/BCM9B2400781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7fd022082842243705c4d286e9c77556e0521332c161f4b487d2b6e8a4b6f1. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/US3DF2201287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db03e0fc239a4be72d5e64260e5b3fff51e5027bc41ab641302e8cb710a9c50. 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/USANG2152574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77321b37de25ef7ab35315d383ffad9f728fd285f2deaac0d5c58dd9cd0dde3d. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/BCM9B2400252.