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 0x28cf2e1b84acafef6a63e56b58c5be0aab4e024cd6dbd3014723e0320e0e4e63. 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/0e898f33-5459-4bcd-b28b-60f729cfe2dd.json and https://artists.proofprofile.net/proofs/artist/0e898f33-5459-4bcd-b28b-60f729cfe2dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Such a Beautiful Day (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 0x76a3c8ab36bdb284784c9c7aa691ba9d894bc91222787ee901937cc45bce2282. 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/USWD11037923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20006498b33151b347356c97eded68520c3d0c8aec249e147fa6ed3ef32832f5. 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/USWD11037931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fd652499999bd6fad96c25e1f7192e054a4fe21086e22972f9cb0a314edb459. 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/USWD11037937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94a9ba8a2b5fcebe77d4202a814ac15804fec15de19733afc5187c4a85c7c0d. 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/USWD11365410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f1d3bf4c514e6a23f4b841dfff4f1b889c9b7b45ecc32cf5251962307a143b. 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/USWD11365414.
Phineas And Ferb: Across The 1st And 2nd Dimensions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13226a5a0faee73b3d3b4e7536c0377b67b279e8c8bb02b884cdc321b29c464. 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/USWD11157305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x938f82c4597f9f66b737f1b991bd8e121c2a62e74d62d0b00aac313e0dcf09bd. 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/USWD11157132.
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 0x7c331a072142a448824b0c21f0af258f341083848f7e0c76fa89cb547cc2e15d. 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/USWD10936379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cb0ebf6c93e84d5b55504ef099c862502f650383e94333762eb1ce0d00ed80. 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/USWD10936386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd202d96f845913bdf99f3c8854196edbf82692826a3c98cba7e4b31b7022a696. 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/USWD10936397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a881f4794cbc7ce30dfed56f4150c62e6833c0cc3454cd77e7aca678d40817a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USWD10936395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf1353135553dc6f253a08295b492e44569efc25b9f9cabae9504cb25a0e364. 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/USWD10936401.
Phineas And Ferb-ulous: The Ultimate Album
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16ab7d65ed8530bb81f41b71b07b13813c9fe0f839019f3f4458fc6793a5ce4. 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/USWD11157314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c331a072142a448824b0c21f0af258f341083848f7e0c76fa89cb547cc2e15d. 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/USWD10936379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cb0ebf6c93e84d5b55504ef099c862502f650383e94333762eb1ce0d00ed80. 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/USWD10936386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd202d96f845913bdf99f3c8854196edbf82692826a3c98cba7e4b31b7022a696. 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/USWD10936397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a881f4794cbc7ce30dfed56f4150c62e6833c0cc3454cd77e7aca678d40817a. 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/USWD10936395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09dc0ad41e834684f7f78683a125fd3284bc2cf6a182c4f213ca5a70de966301. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USWD11037936.
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 0x766ae459b0cedda8cbfa1433d9bf1dbd9a4a37c0f94f2961ce5b84fc3dd3c93d. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USWD11037941.