The Offspring is an American rock band formed in Garden Grove, California, in 1984. Initially formed under the name Manic Subsidal, the band currently consists of lead vocalist and guitarist Bryan "De
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 0xb15521a5439ddad9ebf6a245594ac7a2f4c0b1bfc9e0da5e077fcdeedde96378. 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/baa25a06-8a30-415c-8bea-71d2557febbc.json and https://artists.proofprofile.net/proofs/artist/baa25a06-8a30-415c-8bea-71d2557febbc.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 0xe9955da3340c5bb42ed8be10772787101d38e82f9d3f0f79fa971856d53401bd. 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/USC4R2444620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16bdcd78cab1c5340301389174143081e09a55d742fe4ff6359e89ff7d2f8949. 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/USC4R2444621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76c026bc6421dacb79bc47144144d2879519b6fa5ed84e940d43d535aaba01d. 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/USC4R2444622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4657816280ac3212c6f8ab25e1c5ea9a456c1ffe201c5e3b2710a859ea901e. 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/USC4R2444623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6c4ce5909b9e6058e41db4e94c7b77e3a95bf23b311b2181c32ba37d0e1ffd. 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/USC4R2444624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1ceaab6e7cd91b0cb2c75b01ca1fa7de9565c57900fc72cd4b9ba3d9be203fa. 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/USC4R2444625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca1d50d2a07e753f1d34f0326bea18d7b9deea17893c82d44ae5eebe575f8c2. 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/USC4R2444626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed499f80645f293020c48363a612aee71f5c31ecc9e6897ab597b1bf85e0452. 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/USC4R2444627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f6f381b74147458985c33c4bd27a631dc2a0c3f306a464cd16259e03ea3eaa. 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/USC4R2444628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24ce99f0e34c341edd1335785f1911e77186e5cbfc18b78f9b801d907fb59174. 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/USC4R2444629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db96adf377cb6d4545bee139bb9a3847b0e1afb348b62f6129de59336a73ab2. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USSM10801605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ba07a24508750dc524048d5eb061ac2985a7c03f1a4c732f1fbb9f60c18c0a. 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/USSM19804369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1140162e5b3673ea0796497f1d12a01f2e6288f8d426acac0f1c0c0c9ff23a0. 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/USSM10016014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f08a0ff25f776d160d306374fa9fe26976e5e05fa3adbd841e48adace812743. 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/USSM19804363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ed659567af4e4efa19d18eb6daf815390ae8508ad3105426b6a3afb1a49c8cd. 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/USEP40505112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f08a0ff25f776d160d306374fa9fe26976e5e05fa3adbd841e48adace812743. 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/USSM19804363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa570236a471372e20a72a42b6fa1c2c33d9b436c9fe8c91a526e4642ac19c15. 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/USSM19804199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa570236a471372e20a72a42b6fa1c2c33d9b436c9fe8c91a526e4642ac19c15. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USSM19804199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db96adf377cb6d4545bee139bb9a3847b0e1afb348b62f6129de59336a73ab2. 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/USSM10801605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c26e0d96e91305968a6198c81cb1db788885e771d886a12d12abc334a2cd81. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USSM10015954.
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 0x913beea47d77095e90703b5709f7419f5bd72e468954ed7033cf6e751fb9ee3b. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USSM19603682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e97aaf6549d343834540553286fbad0256c8d14933081bf250d089dbfdd9901. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/USSM19804368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d121d3240507493cd29cfdd544bb7a019131fbf1e9d5c5c054da562f5a312c. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USSM19603685.