Broken Hope is an American death metal band from Chicago, Illinois. History Broken Hope was founded in 1988. They were known as an accomplished mid-paced style death metal band with low-pitched growl
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 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 0x09fb288201706a8bf2bc425429d9718a1b809b9c366ca9ced6c59e7188d83dff. 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/5d642b0a-9711-4fc8-ad7d-ba76268bfb37.json and https://artists.proofprofile.net/proofs/artist/5d642b0a-9711-4fc8-ad7d-ba76268bfb37.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 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 0x7a7f42ee4daa6b72d7b445ad0441741b130ede70159d7a4cf52cecbc34822a4d. 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/US4E41743901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a28ddfb21575403fc0a25d1aebbb5baa0cf46783be42381033b556fba8486f. 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/US4E41743903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbce15d9180985ed2c481496bf6185191e06a729685d4998797ee194b242f7bc. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:02:24Z), 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/USMBR0502623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ecf6b841a2285db1deaa0a514bb1d8388678fecf502faf385688a8dd57ef789. 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/USMBR0502608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88af885ee70beaa4a518c87202b21156d80bd67d132e55cc15c3b4f016fbd6b2. 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/USMBR0502609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d2e53a14220c78ea68698fe800cb0fb510a39ffd0854d759155c2cafa3b7bd. 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/USMBR0502596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fdbdd401a56e5a682c305101a7b5170641bafafeb2889ebca1e023040df00a2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USMBR0502597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8c23a3c1cd4b6973bfde94ca40c2c4132c5d34867bcb3db9f3489e965189dfe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USMBR0502598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf633da1a6803a1b2cc489696da5b1e216d02dd34a57387604d28049b668809e4. 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/USMBR0502599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4719bd663c7e4d0793f1da166dbd0a3e1c61f7e080aff4c408c15c2a21c516c5. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USMBR0502600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0622aacd47d59a0b921c4fae42ed8ce1bdf6c8ae158a3245d5b62664c7815b9d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USMBR0502601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5da67a0223bf0186b1bb7c92dd7f304321895a71ae9c97cf703cae4dc0e676e1. 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/USMBR0704164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a95dca59729ae3399258db5544953949dc48f3447405a6ef894504cf05fb380. 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/USMBR0704165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4d75fcf6fa4ff212d4e8ed9a1c127330db322f13c5fde0cd74228d5f6df7fa9. 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/USMBR0704166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda22dee106aca260725c0ef114cf02bfc11b6d117f9efc6bcd3cfdbd04d2f953. 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/USMBR0704167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8c732e3dab3b85fbcf8e8c4ef7bfaf87816d118fef23a2cbcd8f4216614a02. 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/USMBR0704168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373f7828c278ede9e7b6878432fc1f12dfea8a1b95c781fcda0abbf07fe803bd. 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/USMBR0704169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114f50d1e7986871b9a126a66548e15fb33d727e1bf2a36e1adddc445168ac72. 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/USMBR0704170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee5c5f5825e719079d7f6d9d52779198bb9f44dfefe0c2f280d7bab6efe4944. 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/USMBR0704171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa482e764c5e7a374004a57cacaa2a566040b7a4a709c6622680f6e06759e7ea. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:24:29Z), 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/USMBR0704172.