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 0x281be983aa012ae39ee523dbfc7b890ad5a50594326f60a714d1892834d11bf7. Chain 2 (Bitcoin): anchored in block 953645 (2026-06-14T14:31:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3ce2e823-17d5-4861-8704-812efc303f89.json and https://artists.proofprofile.net/proofs/artist/3ce2e823-17d5-4861-8704-812efc303f89.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 0x918f7cd16370862c4b237e860151d076f6643d0a5a8cb742bb9226dbc3d1d6f1. 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/BRC832200045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced7f3dc75122f07b6d5457e1b73f856ddc1e41d318ed626b52f20cce3a8f295. 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/BRC832200052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38cc05321be4ec752fe16ec665e56cb541be42a307a5c2bbd4807cdae5ae3bc. 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/BRC832200056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83fa9566dd0b7bcb06bf44522f9dbe4c369860c29437e31c2dd041c4384e9916. 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/BRC832200057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc322d0c3ad8d46ed54f47b139778356e518f1a008ab480d8724309a1073067db. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRC832200058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf953f5618d4193eae40b9b885eefea6e8d43af43e4b4d387a5fa24ef1ad2edbd. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/BRC832200037.
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 0x94154aeaae1592c85b406e1677aea793a469c6cb33d8f0db3c4f1fda4c503d4e. Chain 2 (Bitcoin): anchored in block 960288 (2026-07-30T17:41:38Z), 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/BRC832200038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8064a829b7941b1368c22f10c55d30567ff923bdd78f194fdc148534ee468c48. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/BRC832200039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11944f00f409c88505ba1e5f65b6188baf73e082bb2b708aab9bee1a7138ac4. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/BRC832200040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc5d6c0e38abaf29de215832f758b7b76d8133a21226c99bf836ca55616216b. 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/BRC832200041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5778aa1b58d8ec69644ca3321e98e2d17516b422060b06acd09c6faa0fa514. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRC832200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70656ae8ccd0fadc008cd43933ccda7133d7dacd89c851233720cf1098816662. 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/BRC832200043.
Pensando Em Você / Apaixonado Pela Sua Amiga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8726d3e28a7452382464359677a272853c1d9f859438e289b33a5da8f66d1bd2. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRC832200044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f2d064fb1ef11d37b233c74a2c20a1d387b812904633207f1433edaf18fabd. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BRC832200046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37462dc6fbc7f6bca7b094acb70ef5be25f6b2d6a5081b405ed677266c4b5f42. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRC832200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd6913fb0711b124b0ae84205cbd98666a880091a228c18c7ecbdf02f3c195a. 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/BRC832200048.
Nosso Sonho / Só Você / Quero Te Encontrar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6e0620227917355a59d686580c3266c7899a9261bb6cbe8ad973292babfcb5. 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/BRC832200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f8b9dd44438b32d904f2ae25b6307097407cb7efddd2df7d737586e206b09ad. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRC832200051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cae505a44d10d9c7dfa8ef910d204fc526473fdf2f568fb00b21a76a8adf0c3. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BRC832200053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2681265506805227326b07d7edcdda336a6381f076fbdfa82fa20fc6dabf6f96. 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/US7VG1759320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5b1a39fc8e4a31b426c080468a8cfa14a53163a0c8dd850bbe62b5011128c3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US7VG1759321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a513d9794eeef917fbf043649436e202423b6673695ef75a994c339cde96b7. 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/BRC832500033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8422a6a84d9abcf3eee5167adea5e5aa24a45be0af4767f31bd35357a03b193. 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/BRC832200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5d0922b77d212e0e84fa2d59870d9da78ecc5c24d0e9a50105da43289a7226. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRC832300145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6a66523a551fdeb5aea4f981e034311850e346bea5721afc581bfff45e5a414. 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/BRC832300064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6b6ff66fb868615a9e61c9dc240662e1cecf62356b5e925be22e21e43b52474. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BRC832300008.
Nosso Sonho / Só Love / Quero Te Encontrar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71eb1c8d221b0715701c752b1bf4195a205cc4bff45e4a20dd0ac880e2e642a0. 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/QZHZ32192952.