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 0x7a1840aeeec97a2f460b450ca53d28c8bf5f926f7dfd35c38ec33d5b092567e9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/29aa6581-d645-4c85-a79e-9d73961590f6.json and https://artists.proofprofile.net/proofs/artist/29aa6581-d645-4c85-a79e-9d73961590f6.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 0xcc8671d9710b4da63c0e7270ba699b99c8aabedf5c4e718d36ecec2be4b72f6e. 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/BXH1W2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00062472e0bd673fbe2304872bea42d13f5ccfeda4a3dfcb6816793602220e88. 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/BXH1W2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4b975ef7324de4bd23b83082c49e7c4c1e37030016f4fb2cf9861d70bf3463e. 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/BXH1W2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e6e6fde32e03a988337a1df22e03fa7d1a71bbff81bd63fcd8a9de88f48456. 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/BXH1W2000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b778d2b5d59bdcbf5222aaffc8454efccb6fa63545f1e9f761cdc85f1434cd. 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/QZHZ51905063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0ac38059ff50c809b9bfdc0d0b0bd8f9ecce4c55f1931e7d72674b8603a77d. 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/BC4102100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8076f28bed4a0e49524282c3ae293499add3236fbca0521da197a40d6fb5d9ed. 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/BC4102100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6063c0c5377ae07a09eed8473132ebd1226fa2e250d1bdf836cb63ae42c3036a. 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/BC4102300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9bd5806bc0e37d10d132ba3bf02ad417fc4eebe565a21561bb6e3816863023. 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/BC4102300008.
Não Se Pode Esperar Que Deus Faça Tudo Sozinho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089ceb60048cac7b38b0d1f6fbc7ad231beb840799af7630a2112eecd027e0e6. 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/BC4102300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8086b7c280cf521ea19ab1a8d0b7f0c631f141453694c58320dadaaf0b8aae8. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BC4102300001.
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 0xc330d1340f612ac172fb9e5995b2e55c6d1be8e07d981ee3cdc3bd42cac01158. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/BC4102300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b863b6b47b2a9a045e754fad07d11ef076ed37a7808455743259ad07e133081. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BC4102300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc723bd471866f0eabcc973f3e9b0d6f607192599be29b293459e64c333f3f99a. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/BC4102300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8b2c0a3fbfe991bb7c320f0f0bd51832b8ff10c555e338b0c628078c7b845e. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/BC4102300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa833d717fb5be1b5434c296236b5fea07d93734535ba5b6b49f2457f4f569677. 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/BC4102400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30d65e0c36ab210ff5863d2099125a1d8e31528f606597645a5e3f27049e8603. 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/QZ5AB1757196.