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 0x3b5e3dbfa56dee7c9c1b33cba09e2a3665d94089f6e815c0a1b256af6c1285bf. 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/2b34ca83-47b2-474d-8bec-27ce873e8be6.json and https://artists.proofprofile.net/proofs/artist/2b34ca83-47b2-474d-8bec-27ce873e8be6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lanç4 pra Tu Xot4 pra Mim (feat. MC Lukinha)
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 0x3ded29aad9613e03c0c5e844276b565f2764a5d84fe025e35ff4bcfa7264a475. 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/BCDMP2100049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x462840d447685ada8a8f802b178a3fcc3ff691c9bc3f99f24cf1ae9acf7a0a91. 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/FRX282432144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19737ae579d42718f53a08037aedbc32505f7b52af58d2d2a4893b65f48cb850. 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/BCFCV2500212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x419613dc78b75f429ccddc4eb7d7ff162902cd788cc7da5955e31d68913de16e. 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/BCPQB2500031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1727c4e13430400b298fb86c9463a73283ea18ff8de8e9d56f0d3dfe4cb38fa. 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/BC3PG2500280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4381deedc21ebb96895b66c09a2596165de4b8788edb049e36cdbf45f89a705. 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/QZGLM2564825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19d681e2249b6d09de2a80dd3965c966ec40b7932638c5e172eb82a03cfc317. 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/BC3PG2404585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6497bfcbcbb832e9074e7780b0396badff5b0f5d19ff17f33ba02f7321ba09f4. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/BC3PG2403938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf624c49570acb097ce09d3e7b0052747909bc55234dc4dc147e38895c352f8. 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/BC3PG2404120.
MTG - QUEM MANDOU DEIXAR (feat. MC Murilo MT)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d20c2ea22ca474da258de4e58e47dfa2242b853e17ec96ab119ebfc9391522b. 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/BCJT12400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2aae8bb04d6be1476ce0f46ad5261abdd3e9c601b81069bd6361e34129012b. 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/BC3PG2402982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014920939085ac666a286442c2a0977ccad920da3d38ed62ff856c1ebedb8449. 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/BK2242400755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05704e18e32d81c79df12c0f1b120a69921bc763b8c99ada0d47b9e043530fd3. 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/BK2242400752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4c3dd1a4496acad666f204a84e58a26a16873c0bed7d1c573fc47e876e0c749. 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/QZMZ92483940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834279af64ebb3a8aaa1d26d9968288ded1c2c59ac2a59ef0ffd48cba1dec705. 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/BCJT12500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd22b98bc8806b303944bce8293dd7d7ae5868990b13da98d3b7f172078480c. 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/BC3PG2303618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd60a1e81c9091104442b7f7a7e0f6a5ac616102356bee8d74a6454c338a34603. 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/BK2242400747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ab23e08dc1632b2230661257be9706654da65360e8377d339d7da3889b6df13. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/BC3PG2330901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5bc6850df9754c1fec6942c352dd169275e44e8f49b29681af735e807cf16c7. 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/BC3PG2330908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6268f9f37b0f5506748f661e28d32d208e503de41a20d069594b8a78c9a0eaaf. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/BC3PG2304545.
Eletrofunk - Vou Te Comer Só de Raiva - O Mundão Girou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb420a518efed9cff9373430bd8a4e2f631f388f829d5852ba88fe67c50a0b2f4. 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/BCIH82202807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44496c6cffcb57cac92118a0036f4c4d8e0501405c7f4d069a89b9c406ed188. 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/BCIH82201657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332504eccb613401f010f1f7eaec2a598756605ff4541d5fec78e8a4547c8df6. 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/BCIH82201249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc53f3fc2259c5a21f0695517c04b102027ef1706f1db392ef1a91a43a1faf02. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/BCIH82100668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1468120ff0ec3db0f47f59441ae3acd87d4740d45a25940c8723ce01675a6ea8. 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/BCIH82100659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf5e4ea9ba039ac4aa562a07854493f803de83fdc9c319f329efba4db31c958. 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/BCIH82100739.