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 0x0de6481a75c9721d0f373a72b6067dd385e450159f75ced677505e72553fadef. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a4ac548-5547-4849-94e3-4a124ea926ae.json and https://artists.proofprofile.net/proofs/artist/1a4ac548-5547-4849-94e3-4a124ea926ae.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 0x51d3031adba6d8080ac486893bf9af4443298e9707779a1135bca5c4a99171cd. 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/BRLRE0700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039c7129e74173de0ccf5abe147382e310b8c1296062ee455963316d3095a9da. 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/BRLRE0700134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aeccb3d222a48a3f1996c67a44282032d6db512c0ab5253173da75d8cb040b8. 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/BRLRE0700156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32cd44662777853a1dcd42f4caba7afcc7718bd58f4d8565df805883093e8b92. 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/BRLRE0700158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4e6d85990e46bb7d921222037738509b37203df8a8cd9cd49f4e96c388b69. 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/BRLRE0700159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87aaa4650e7dc6dbec8935761f526b0fa405e07011d2ae067638fa04e024cf85. 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/BRLRE0700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7154ee878463f0ef43dd24763d432a13eccdd921c327edb8e19eab6f002c5d7. 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/BRLRE0700138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd0f57d98e308b8a8be5d722def171f2487ca90d52a23c96a4e4fef8c8de2039. 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/BRLRE0700139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4ca2db210c9479350ab83007d4ccd1fa6ff6cc1a181c49f4e21a3c3bd3b987. 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/BRLRE0700141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0bd6751469f6b693c4e6cd27ee5f97952b7b08d501dc90ea12b29ce35278b2. 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/BRLRE0700170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94cf5fc0d5446598bcbe239612cf07596f4c6b458248a344da3a31f1f3699521. 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/BRLRE0700142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe77f062497204f57fc13f1c9897fbfd6997aabe03ee6138626be2ccea05ffb46. 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/BRLRE0700143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eaa1e85aa268878f6eff25f341d62c6e8436ab64689ad2641cdeec51e188c4a. 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/BRLRE0700166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50516fb5460dbf7fb4e0646de3ceed42186ad8cac7a51097475bb6855af2a1a1. 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/BRLRE0700144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba276169408d4d3b9701afe4674ef3e2368a9be7c504bb2658225640054932cf. 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/BRLRE0700147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e393d02f6e1908a977a47d7fc42d0ca7c501f65873104595874d30fd00315e5. 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/BRLRE0700149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9163d439f22defbae8a63eb1fd2fa0994f44f0e6f1d2e41a285a25ef4e46ca4. 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/BRLRE0700104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019f51d48e3b2880e95941b9a73ea47c8a23c5a069742094b88a39b27ca1f725. 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/BRLRE0700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1020d68f5b82cd47854333001c2a237eb5efe16aafd11a3fd68c47fc9cd7d7d5. 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/BRLRE0700176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x097c3962de48538fa369773a9f997013c9c0812d6ad70192d60e6f37f017a583. 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/BRLRE0700154.
Canciones de Carretera: Conducir Por España
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79975597608dae5233095ef41c21d1766b5c5cf5dab9e59c929845a3eacebe4b. 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/ES5010700160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4744e6dc1cd97a1447a05a7312a11b78004bd6601f2f52b3f2369610034cabac. 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/ES5159208016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bda897d0c1011cd3455bac24bab6aae2eee6df3a5ff733db0e5388a7d909cae. 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/MXF150400163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7597e6a91101033db39227a361c9e1aec163deb050bfc9a338557bf08e66349. 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/USWB11201717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3669f2c4e95e52df24ba1f1ac843c21d3011a83ae28bfd11c1e7003dfcc610. 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/ES5150135000.