South Park is an American animated sitcom created by Trey Parker and Matt Stone for Comedy Central. The series revolves around four boysStan Marsh, Kyle Broflovski, Eric Cartman, and Kenny McCormicka
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 0xfe72b158a241918c46a28ef495f248b25dc623883995fa8ef9c26cefa0280733. 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/b1af23f9-7630-4e24-ac2f-5827595ccc86.json and https://artists.proofprofile.net/proofs/artist/b1af23f9-7630-4e24-ac2f-5827595ccc86.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 0x68199fb279a638c6be7a26db21c0bb68f6de1f6d88bc5f0728ce87dcbb1b04cf. Chain 2 (Bitcoin): anchored in block 957638 (2026-07-12T01:56:41Z), 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/USSM19924700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675dd00b1ee4b95da5e7e090c4dba0fe716405fbaaca4d1bfa93554714157b89. Chain 2 (Bitcoin): anchored in block 957629 (2026-07-11T23:44:46Z), 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/USSM19924702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b6ae852fdc55fe2d78402268845df7ed6f5bc279c96705aff1a35aa437952f. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/USSM19924704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc756b28b694b9bcddacb3ad21277b6e624fb37f002b28eafdb83bff6c0602b2a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USSM19924710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33de787cb9ee0e8f1085400a344d01983924bb20abdb643027c13f70e5efc08. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USSM19924712.
Acid Jazz Classics, Vol. 2 (The Finest Club Jazz Tracks from the 90's Till Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b701471fc37ef7fb47cfa59b71d2c7c8abc6b757fbefe9a278193726d94160. 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/ITI020100321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b701471fc37ef7fb47cfa59b71d2c7c8abc6b757fbefe9a278193726d94160. 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/ITI020100321.
Acid Jazz Classics, Vol. 3 (The Finest Club Jazz Tracks from the 90's 'Till Now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b701471fc37ef7fb47cfa59b71d2c7c8abc6b757fbefe9a278193726d94160. 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/ITI020100321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2e4702369e056262dfa8b960b918180cf3b39cd1de7e4d90716c7997d7cb9d. 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/ITI020500012.
Sister Bossa, Vol. 6 (Cool Jazzy Cuts With a Brazilian Flavour)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8646e12b60178e2cc3844a9ef472582fd1ccf27c2004e4581622e98fcd2bc2d1. 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/ITI020500088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8611bac5512d0c0704a2687fdb05eb7dec7ca8fe03e39ceb1e32fe2232d33d. 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/ITI020300146.
Formentera De Noche (27 Es Pujols Original Chill House Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c921448b7f16ab693d9ac614db87f8079dc77277e540e954327fd941de5c11. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ITI020200172.
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 0x99749a75872fcb3a5fc60b3751c7685ca89540309f90832aa1f3d42a570aff83. Chain 2 (Bitcoin): anchored in block 960161 (2026-07-29T22:51:26Z), 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/ITI020100200.