Sleeping with Sirens is an American rock band from Orlando, Florida, currently residing in Grand Rapids, Michigan. The band currently consists of Kellin Quinn (lead vocals, keyboards), Nick Martin (rh
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 0x5b22cfcc755a91ff6cab7d46374225b0c5be5c82a787a9f0f1bddc09b9d8840c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/16711383-d0d4-4814-9435-c22124b8f9c0.json and https://artists.proofprofile.net/proofs/artist/16711383-d0d4-4814-9435-c22124b8f9c0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
If you were a movie, this would be your soundtrack
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 0xfab95d0535aded0b5ddd11eb2e85bbd87f1ce0afc699bcfec6818b454fa15bae. 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/USEK71216501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19169d02617faf516a73a05cc72a8727bd5afd019db60dab9e28abb216604e8f. 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/USEK71216502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd123af2788a7fb452aeb0c2d777701e83b226c15da0f3a8ec4c823c2442064f5. 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/USEK71216503.
Scene Four - Don't You Ever Forget About Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x084c40e8eeafdbdf060a1cf1d89c0ce125c39f86ba80683d83a43c0c5a6d6f7f. 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/USEK71216504.
Scene Five - With Ears To See and Eyes To Hear
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e9acfdfa75e00cfcc5c566455af1ac64ed0fdfc81f5f1f960fa7527823e3dc. 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/USEK71216505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13727e6724717479efebf6a80c129a44bbd130ed651fb88bfade5d032eb73f22. 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/USEP41501001.
If You Were A Movie, This Would Be Your Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996ab964a9481aacae0171252a7fcd9de6789a73038ca106e7a22d8dd6d2ba99. 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/USYFZ1918301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4fe5878f00ceaa78907036d5d6c24794452244466fa89bbdd0018c1a6921fc8. 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/USYFZ1918302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954b2f80818fcb205ef6bd2b001ad8c2ad6efdb4795dcdde433c974550e7a3e8. 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/USYFZ1918303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21308ca2d8a657718ca5420e68976dabfe8dda10b7bf421acdf8dff80cfed9e. 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/USYFZ1918304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0052372e2c5357afa9b41d44556dccfbb798da6ce87c6496e80267424db66cf5. 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/USYFZ1918305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5280b324aede696b9fc50175f64729a8fdae483411775c854fbcd414271290. 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/USYFZ1918306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2389083d7c129277c66246778bee4024c9af0fc137ec8df57cc011e254c780e5. 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/USYFZ1918307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c25fd3b9c62700832729be2e91944c3190d983cfa9309e094488d9e0564775d. 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/USYFZ1918308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd971a4d40967b4fc7c6ba5ab320d00bb0ed1a840434ad2ffd637f44b0f633c. 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/USYFZ1918309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc435761beeccebfa18c9dd78b14707dd7484cdc7f5e9cc388c0935c661c59615. 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/USYFZ1918310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd52b8c2df508d77a9e81cc5cced56108f6d33b60f52c718d2f48352da8e4bf8f. 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/USYFZ1918311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bbc92cc3338833d1e643cd30716630ac27d2725b3a364655d87c3dc0d3691cd. 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/USYFZ2037512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70e7817d4e5288174b07d959155feffa5048044a28b374b524fdb681739b5428. 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/USYFZ2037513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394b24fc920ddb13f9b3a908cc66b13abffce40f5a8fb287b5fd92eab65a8210. 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/USYFZ2037514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdae20ed3a57618125e3f81d336ee9bf831441a981ab7d0e289d37cd13af9ac51. 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/USYFZ2037515.