Bonded by Blood is the debut studio album by American thrash metal band Exodus. Although the album was completed in the summer of 1984, it was not released until 1985 due to issues with Exodus and the
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 0x52784909b9bbc5e4a8fa8421446b32d238610814ba517b216c7fc6da15171530. 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/75cd211d-a78e-478e-b964-c7005c83c2a0.json and https://artists.proofprofile.net/proofs/artist/75cd211d-a78e-478e-b964-c7005c83c2a0.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 0x76e2dd00b6de1dfc74b6be2cabbf0f254e7bae42c030aad084f0c2e4b6b6e3c7. 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/GBBPB1201545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346a7b32a0bc0300ed235a958c3102dd3d7b2dc9ceee88171d696081af3cbeb6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:27:39Z), 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/GBBPB1201546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22bac80f1cf44ce43bd8a9c91517010962fff1a486984ca6a1e8cc072e609a9c. 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/GBBPB1201548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce49aeee90e74e73b931e20ba32bbeae99f785a48bd01928b02698b8a03a20e2. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:59:29Z), 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/GBBPB1201555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9371eb07aa1e4ad0fff5c69f1a10d22f8b8358536d9d82ea75d7d08df7990c5. 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/GBBPB0800110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1910bfab143a3df5a95907fb0f408c45917f4f30ab95e69213e757cd03e747d. 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/GBBPB0800111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaac431ce2a93cf4424f345876f9791f293f9d1d80240562f9663645cc55cba5. 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/GBBPB0800112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x644506762ce38b4d146b91d956ab0619a5a287c13d23d3283a57d5850be26a53. 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/GBBPB0800113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b024d0125693fb225bece4577612c69b5415c65f3e4011baeeb8fa3cce73bd. 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/GBBPB0800114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05da84fce6e91c37662aa94f05f36dc9df99b22585ec5d4a4a0b3543f678fb11. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:26:04Z), 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/GBBPB0800118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1752c55dbc64e383fc5e851e141f2e826084ffae0bfb809f8d473feb8a161798. 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/GBBPB0800119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e85dd658569c283d31048a5db3aaa0c1f8f380a9d08bda9eb4dbb2ae1578fb5. 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/GBBPB0800120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa160d7423f169c6249185320892b7e0f91a4607f053b65252401efa419534643. 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/GBBPB0800121.