Mercyful Fate is a Danish heavy metal band from Copenhagen, formed in 1981 by vocalist King Diamond and guitarist Hank Shermann. Influenced by progressive rock and hard rock, and with lyrics dealing w
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 0xc2bafd74cca51aa8243fac5312a1d9aec8f1ea96e53c81bfa7f309db3a0de7ec. 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/7f99a786-6971-4535-952a-45bb2f5d07c0.json and https://artists.proofprofile.net/proofs/artist/7f99a786-6971-4535-952a-45bb2f5d07c0.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 0x8dc70e118cfc5bee27cdd96390cb7839c090c468b43646c6a808f97b37c1d9b3. 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/USMBR0501688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ce0afd64f50127c759eb1e3ca9590a179a379b420e4f0169b9b5a2942b45d5. 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/USMBR0501690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c703e20d8497afc8cbd7daafaa259bc671ce955c927fc425560edf67d348517. 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/USMBR0501692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa316f48cec83a91b65bbe600e36a0af92e24790b629dfc4639ee01cab11bc31. 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/USMBR0501696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725f73b4d652ad3efd6db356d26b41badd713bd3d2f1c3423dbf290757502c3e. 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/USMBR0400570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf71421d9526896f313e5437ae21a1c1b47e8f0beda042fd9092e14a0eda4a0. 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/USMBR0501677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2df5c657b113793fbc8b0ffa52dabe330dc761635c2fda0f9bd46ad34d4c48dc. 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/USMBR0501678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffb80ecc061e65e6e6fee8775c2cbb9e6be3da153e452d0d88a1bc37567e5a6. 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/USMBR0501679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d80674838db5159173cb86562adede004ea42006420e8c847b4d3cac621e92. 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/USMBR0501680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4f92319530ec2596ef5cb6846b7e9bf305f6b4bedeca35c89def8c26e3bf065. 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/USMBR0501681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909ef9ad7bdabb7fbfd3a883b3ffa809247bb320b47895cb29f2282263b77f7d. 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/USMBR0501682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed420f7ee0d5e4b41032068c61982c8bf6c2194812ca331ea2ec2f6d250b8da2. 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/USMBR0501684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0debc303657af9bd1cbf2f7e57683493e759726a1ec87dd7e0deb621b70de9. 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/USMBR0501667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb446fb31802394e0af885a601a6e4adfcfa19ed742f69601a73737333e80e782. 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/USMBR0501668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced4a7827fa6e92f590a3e9858ef79961dad73b62e32a2c29c4b76ef66257e42. 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/USMBR0501669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00a9088373c64b78ea7e983526aae1e4f2d587e096ceffb54847130d78c90eaa. 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/USMBR0501670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c4722f3f4838dbb5b0608f6c7bb165d431f9834bcade8337329793d43d9360f. 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/USMBR0501671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6332154526ffbaff29fcc1a16f4b17c63e1fb7a1cda19ff66a8db2d45a29e12a. 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/USMBR0501675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06751463b3da65e977a362d3c5080a28467a7a204bde75e505b89fdbd19a41db. 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/NLA329780551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0218f1cffae96b92c64df23715494e1ba53937834139af9d32699d40fc8d75a2. 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/NLA329780552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9343e030e454afe14339257e3d57633b616e657718b0546958fbd838e36a0049. 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/NLA329780553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89cbe17eed0cc2f2fba8519f852528a28653cd615fd4ace99b669cbcdb5f6fb. 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/NLA329780554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc179a946fccc6024fa5538401b609b2085995d5be0170c0e67e43f46807066d. 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/NLA329780535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0990dba537d605d9e3bc0236d915ca22c800224d7cf140055bcd7229b9eca2f4. 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/NLA329780536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e7022b523c04009d35bc13f45c40c60d40d1db110c0c8433c7ae3f35401b02. 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/NLA329780537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd35276453fc5259ea523a270cd6fbbc9ed6867b9e31e205aa04e3d87cc25e3fd. 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/NLA329780538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d715ab5abdc4a7864c9eee8708a15422ae7a7ba9dc5418af58dc2535960b2ca. 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/NLA329780539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca296feabb009e22c7575df797a9e5a4818668b1cc67b04a8a11d04878c88616. 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/NLA329780540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d61b5b978d91499700f0a151aa8473c2b5579db36c5d722e2a6f2161ea33a5. 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/NLA329780541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae7a18e7491a5cf9b629dbfb88e3cb3b1f47bafa3ead8c23541d2bdf3ce07d75. 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/NLA329780542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdfaca8109089079d978a76ab487a8538cb1da00ce0e96c1c015f4e36bf5da8. 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/NLA329780543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a45df8603c658b098847fb0ad48e7d0baba4c4ad39fa56520ec6ffef7b9540. 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/NLA329780545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecf69579e6fd99e8f0c74b5aad36ea139e21a21b16d8fa2553c4ab481601846. 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/NLA329780546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35280f395c124c233993263fade21de8992f21e02cdb74898fc7f96a1f65b0e2. 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/NLA329780547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7ec06b98af799cf3850da8837f57a81d23b24907793c562c2662fa63ac9797. 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/NLA329780548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc744ab1f3617e20d90d24e41f311af3bad976fd7fb715594644d9b96b90c912d. 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/NLA329780549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a33565a2fc79b89a29359a7610aa9b98b5d5f97750e93dbb66f69e2ff4b523e. 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/NLA329780550.
XXX: Three Decades Of Roadrunner Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb866fe13926e0a607842dc34d072eef516c84920f1216b2db7c564d9e0ed265f. 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/NLA329780544.