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 0xf351c93d18259eb643daa7e73c5433b186ab8cbf371521c2efe5a6869dc0178d. 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/0548af1c-7073-4048-997a-5e4bd8b37c92.json and https://artists.proofprofile.net/proofs/artist/0548af1c-7073-4048-997a-5e4bd8b37c92.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
We're Back (From “Phineas and Ferb The Movie: Candace Against the Universe”)
Phineas y Ferb (Castilian Spanish Version)
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 0xe4b1212d16cbd5966437387189af10e175d103e197282bd2b43b0e52322fe5f0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USWD11037938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe10e206a7f8a0b126ba631da2abc1ecaed5c1a51425bc83dbe2122658087f5a. 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/USWD11037944.
Phineas And Ferb: Across The 1st And 2nd Dimensions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e27fc5e494468b8c15c3e1c843cdf4f594b6212afa3385e5f3e60bcf3d90bfa. 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/USWD11157304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e16f8e55ed83cd64ca641c4d323b7aa44cf4f5638af49e947fdb561f7c59b65. 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/USWD11157127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d9774cbd42f47d00643af6a8be1da0c47153fd92b638978a4a6fe48a828d2c. 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/USWD11157316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4067c7f33d6adb1c3bbf307a1cd610ba25bf389bc0a3906526778fdba9c6568e. 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/USWD11157322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72fbdb00697a01928675ee5a6e419db63643bba5c9032c303a1d631e22ac835c. 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/USWD11157323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47815f5c54c2eba1093269112849410d5dd28f2913fcd6c698ba59861d604a35. 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/USWD11157327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed06111a259611b130f8dfa7d51c469603d06c8d49fec509c82c69ba4e179a1. 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/USWD10936383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2b6101ac54e00fb03b0d83320d9fb3fb4f7ed9272acccbebf5062da5e1fb21. 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/USWD10936384.
Phineas And Ferb-ulous: The Ultimate Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a8a62bcc148b692883fcd9281b06720b88eceed38b5fe575145ec936c8b5524. 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/USWD11157309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed06111a259611b130f8dfa7d51c469603d06c8d49fec509c82c69ba4e179a1. 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/USWD10936383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2b6101ac54e00fb03b0d83320d9fb3fb4f7ed9272acccbebf5062da5e1fb21. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USWD10936384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aa05fc15f41852de5dd4efdbb6b02f01be32a4234f0a8caa6760d1dde8b7c1a. 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/USWD11048338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef4b817d0198762642b3cefbf96d3f02ec01495f77d6ec75ae60cc8b1c84c42. 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/USWD11049478.
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