Blood Ceremony is a Canadian rock band formed in 2006 in Toronto, Ontario. Blood Ceremony's style has been described as "flute-tinged witch rock" and their lyrics are filled with black magic imagery a
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 0xdfb3ea183eb95016f2eb727b23232c69069eba1e8ee540ce35e41e0dfbb9c105. 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/4d109fee-bf99-4e8a-a848-20d7a2751e66.json and https://artists.proofprofile.net/proofs/artist/4d109fee-bf99-4e8a-a848-20d7a2751e66.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 0x03e7bb68efff54f8945699e0499f71aebd9a65f2459a8a44d12a48420cefb4c0. 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/GBMLU2325001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2abbab21d481c11b42f35cbe310bf81273768f9a7825d7fb68245bc0537c38. 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/GBMLU2325003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cc039d89f4313bdafd3d74d1424fd42073ef86a412d4b7f57e533432b55aae. 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/GBMLU2325004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa87a7b493ce3194eda951631a932c850147d5cd14e1e2f3abf96c8476eb51703. 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/GBMLU2325005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbc8820fe090615778989e5958f32418123a8f7f51dde5d396e9c02e81f20bc. 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/GBMLU2325006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa998f6cd49776eba66a371ae6d18505914477aaa0f0a5fb9fa053b1dad95dd9. 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/GBMLU2325007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x985434f36576c9235fd7c5707c50efd7a2f430f1f59135a40ed2ff0199cd6e34. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:53:39Z), 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/GBMLU2325008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x775116500f2b97f751b49c03ae17533232fcf30aff6b877548e1a129adba4f3a. 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/GBMLU2325009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x306682113a9f798a69c94a4d5b71a16c8254bb69aafb20e53d1f572c95739ceb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBMLU2325010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd62a995013a7c3d906f5dfa5b1ec58ac1b9841078fe5470eb6075a52330fdf4. 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/GBMLU1619701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef4e6206ef8efeca0f23eba0e8a55f1a4b845bd9ed8e5ad77e95426d7f7f5eb. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:20:10Z), 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/GBMLU1619702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43eddd35e4dfb2ea3cb88e766c558444fd8cc854c277c21b50c00793e7e46c36. 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/GBMLU1619704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf125bb5e7735210042e804dac4c9cf187d6fba0f94a1428845b95861c059d14. 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/GBMLU1619705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2215ed526b6b9f4ebc2cce1bf0be5e15d5a4dd9f10a7744d34071febf381641. 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/GBMLU1619706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63aafa17afae1d3366d5d4ba5c6398ebb092b829fb7bd1635113aab01252c15d. 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/GBMLU1619707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c9affacb6062948d35bc353a9fdee8e6bcbbfbe5e1583230b30f558938d156. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:26:32Z), 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/GBMLU1619708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92768da25baa1498366c33dd5f70cd3b30e018e990493add0a0f999dbb789453. 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/GBMLU1316401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9e7213aa25cb4675fd5ff5eea07fd3ed9dc430ed380732771101e6b4a8e005. 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/GBMLU1316402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x289ea7ca1e5bcbf635be0ffd7828d9e328176374c2b79d6bd4c4d9f59f4c1681. 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/GBMLU1316403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0871c516fb7645702580bcce58a6559703eb2c41444fb5d83deeb01eac75f795. 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/GBMLU1316404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd321e17fbc52a2d4b4d53356763e491306b9db9fbba58446eff7c0fbf40b94. 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/GBMLU1316405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8907160798d8c0ab7bfc96eb44c6a70fb42ca5884cf06e24e55d8bb541c48955. 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/GBMLU1316406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e4675838cba4678241878490f9bf46b38dc0d18f5d9e510e15a28c846dccc8d. 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/GBMLU1316407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a20d5afc2448453ff208779acaf1fba61086cc04b28875f980a51d699b00aee. 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/GBMLU1316408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf947b8be7bb4b5219965fa4ed69aaabd0a8233bb74320c35f92143efbd448c5. 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/GBMLU1112901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f55460662f6956195b003d3cdae35d31319ce14f7f6ab554b37f5023d17c79. 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/GBMLU1112906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea18638aac77b723ca553d1e53ce529924b841a21c441c6a3a4ee26cb9389d6c. 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/GBMLU0810901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee46531c62c4710358800d36a1fee32b7cdafd53a35da3049585365ad784cf2d. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:42:33Z), 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/GBMLU0810902.