Bloodsimple was an American heavy metal band from New York City that formed in 2002. They were signed to Warner Bros. Records. The band's name comes from a term coined by detective novelist Dashiel
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 0x75a994034cd12a6f72d3ccd0a079fe50bab0194b68924625ed2b3c1633bdb33b. 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/288588f2-a5d0-4c0f-b069-97a6d74bc2dc.json and https://artists.proofprofile.net/proofs/artist/288588f2-a5d0-4c0f-b069-97a6d74bc2dc.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 0xc46e922a74fa712b64db34e5fa840c491361f53b8269ceefb30df4142881454b. 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/USRE10701819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636dcd9c36e052f4117546f15a1eaafb49bccdf55bcd871a8322845ca6920f75. 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/USRE10701820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cfc8041cb61c8dcd7d643869133b68cd9982d704140147650db55deae0a27ad. 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/USRE10701821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c9e9b6f4fda13e048c354bf4e8f5eeb80401bb10940ed191808e23fd148dfc. 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/USRE10701822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000513a5da866ce8f890eae80cf7a3ea767f78ff3a799b05a2bfba5b98c8b426. 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/USRE10701275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16b15350ae05b18f1c6db28f18e13baa3102e8380000d6ce911456c2effc1bbd. 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/USRE10701823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceeb17e0ccdb1250312528db387ca661ef8a811671c79a7db13649f64d0db726. 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/USRE10701824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9255fd3430d5e73e4d18db265b2be079c62e73db56fcf7a473876e25d353f17. 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/USRE10701825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe56c170a33b0f0d5aa1f62020e38b438facb0d94cae6928bb90a12e888e86445. 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/USRE10701826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ac4d72ca879f60373165753d98b81f9d72152a22a775ed67e9ef77d3a49558. 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/USRE10701827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c4a0f3cf7e2a2b45d139fc53085af4768caa4a5df7d1e6a1faab59a872a63f. 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/USRE10701828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x018cb302911344c080e5b2d7f94e3433a5eb5e9604570a57c14ecc112d4737c8. 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/USRE10500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9674313adbd658341ec23c3d68a16a0f2e178e6956c1ce1611edf1fcf39df1c. 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/USRE10500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecbe51b3e6600329ecff76d6549c16d1fdca48ae2bbb36ae76b32b40a381cd4. 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/USRE10500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcce0f25deef756e4009b224da03de8360283814d5c2fce4576af0ee7aad8f73. 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/USRE10500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01609cd90cb8d8f84ce3c4478143eaeee5dccd34adfa7bca0fb594d68ae6f664. 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/USRE10500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2804483bece2ecb5a037df333ffb62fb68408e36901e2d3e56529ff1b69b2944. 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/USRE10500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0ae3819ce206fbd51ff0d1497bf91b27b04f198305500c323b301660df90d9f. 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/USRE10500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dbe972e41cbbfae132a787c63be7354fcae61a6e1c280c808f20a576c5798e9. 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/USRE10500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47c3ad7991d0cf1f821d7e329fe0ee39918ef5a6d1dbef0a57781435c2e9433e. 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/USRE10500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3014a8f30eeabe8aaf006339341659c73d567457e93796717ed87e09ed86fa1. 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/USRE10500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3c9dae632292af05805ff6659227f9a1df858f6f7959a96b60cea2c7bc4947. 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/USRE10500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x000513a5da866ce8f890eae80cf7a3ea767f78ff3a799b05a2bfba5b98c8b426. 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/USRE10701275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2b66bf11cfd0773a9d7a9a6e2adc01a13a00f209b149973e79fa0a3d6780923. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/USRE10500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcce0f25deef756e4009b224da03de8360283814d5c2fce4576af0ee7aad8f73. 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/USRE10500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecbe51b3e6600329ecff76d6549c16d1fdca48ae2bbb36ae76b32b40a381cd4. 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/USRE10500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01609cd90cb8d8f84ce3c4478143eaeee5dccd34adfa7bca0fb594d68ae6f664. 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/USRE10500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa146eb4c260ddfd78e0879824d4a08488ec01146020b69db7a468d896bd8802c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USWB10401981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67575090a5c07633ea237bfc72954fdf2b9b71d58b4b32336baa4ee474c84929. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USWB10401982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2b90eb51a81ac9911ad486132c69f620b2c0823682f2e58970fe14849d3c1a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USWB10401983.