40 Below Summer is an American nu metal band from New Jersey. Formed in 1998, the band broke up seven years later in 2005. After two small reunions in 2006 and 2010, they permanently reformed in 2011.
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 0xca9dadee58de292328a740821084764099232b4557e5683b0e30b306cfafe9f3. 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/abc70e0d-e890-4bac-b626-fde969fa394b.json and https://artists.proofprofile.net/proofs/artist/abc70e0d-e890-4bac-b626-fde969fa394b.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 0x1bd55042914a713e3fbb7c9007b3e7e7b63a19a66326912a4d07ba8b71dfa253. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTB62552534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd67362d7ec6bab0f2b710afbab32bb4c487f9aea32f0cb9510b8485db10644. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZTB62552535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66aeedf0fca0a5274b7e150b8418f92156cf9efa20aeb2a41f5345e526687138. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZTB62552536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac7200ceba8b8c6a8b7df195ce5b970354a7eaf367eafd73b7c50d892950635. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZTB62552537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fb14276b94949172dbddf0fae05724084fb948fd99fdad67b0dba9a75baa52. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:12:04Z), 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/QZTB62552538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02475e18568b567bd82bfcc0772ae3346c55276f7778474ece830114836d91fd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZTB62552539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xece894fa39cc6a6ed4957688dde684a94e8c37141a854d628141e75c8f55e251. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T12:00:09Z), 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/QZTB62552541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2150d997722b817f502df1b641d1faa278a6d195ef1d8c74086f60bad1f35d7f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T08:35:25Z), 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/QZTB62552542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135b3e3cadcf4e207b1b8726e6003a9c2e87a978bb30234926498713c63161cd. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZTB62552543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14090b1b004e89d5ca34a45100c6a555b922cc3a791b76c5d8c2f795fbb6bc49. Chain 2 (Bitcoin): anchored in block 957616 (2026-07-11T21:52:36Z), 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/USSI10100131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12eedbfb97b2890f6a2236df4e2085673d5fc54c86c121d1e00a0a7759d1d05. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/USSI10100132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d9d345b71bbd3f66cd514e320a19a5383e64c3d3b20453bfcf35ef853b9950. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USSI10100134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ce76563354404847d949b34dad57b38d3c8eddb465c904f867cab96be147c6. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/USSI10100135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358fbc5e3a449b10e77e04796a92a9a098f0b22253d2b34140f52448722b909e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:26:17Z), 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/USSI10100136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d95d5004c0be5a91c7af3e5bb0738444b1469322431857c2302722813a4b69c. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/USRZR0389801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ff944480e572e7fb3f25d9a14a16275177accb4c0fdc83ce1ddd383fc8ec23. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/QMKSV1200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14781417a012549e8a274caa24555342feb521482fbc5094619a6b66e93ca5d1. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QMKSV1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9cbd1194197b6897726ceba13b8386eba5fc3bc5bf9675f00a91c427481ccc. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QMKSV1200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991f97ba44b11db70b21c9a17132c32778ae9927ad025aea7856c7789118a17c. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QMKSV1200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a52cea34391bb237c703130b105eade3f0f96b035a9d44d63738380299d1cab. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QMKSV1200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f21b2ef6021cdb27c48ef1f4b51ee1c298435aa023f6072e3f27cbfa147b353. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QMKSV1362203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87344c45d1b8227e8a6357a054fc675dc657bd922383f77a2c9a28e29e63fe5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QMKSV1362205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fef276b26dee5e5297d5479207751ca66b98c7b5926814ff7313afea98a5ed8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QMKSV1362206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf033eb45fe2160256ea866738e8c3bf04c1525d5887ac018f3c8905746aaa08. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QMKSV1312001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50871f9a67daa0299311838be7ffd1fdc610a16b94468c83501c2ee01d5e05ed. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QMKSV1312002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecb5a87041a3605e0761ee2e008f6656692ad46142e67da71ee87c9f70d31f11. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QMKSV1312003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c23b7485a6a481d5291a7d932b51a66c619b02409407d26caa700b6c5c818cd. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMKSV1200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6718e9ac2373b172014426af824adb058d8736764f7bb9f93d8ac21fe0cb8e. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMKSV1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c5e9dcc587c62af3879bdbc21d0cc486566b90ed64917f0ee26c035a93fddb4. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QMKSV1532607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb879f44af70f1a7cecb2c0a1a6f952d4d0bcba2599e34cbb614dfaf1fa64bb. 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/USSI10100126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb879f44af70f1a7cecb2c0a1a6f952d4d0bcba2599e34cbb614dfaf1fa64bb. 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/USSI10100126.