One Man Army and the Undead Quartet was a Swedish band, that played a fusion of melodic death metal and thrash metal. The band was formed by vocalist Johan Lindstrand after the breakup of The Crown. 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da81214ebe76e678e696fdd40af6ea7c74649c58c3f099d0056cbe81ff2697a. Chain 2 (Bitcoin): anchored in block 953678 (2026-06-14T19:23:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/635a0908-bf04-4051-aa0c-013305c267e0.json and https://artists.proofprofile.net/proofs/artist/635a0908-bf04-4051-aa0c-013305c267e0.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a45591c759e4e58ef04f7dbdadf3677805545dc15f081d5fe9006a7e7f7790. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DED831000802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06755b6d7e4f89c23346391a6c773b1216db9b0e37ace70dd2231642b4fe57c5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DED831000803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68aa0b88198a24f355d6c7ab72c7487484f667372d1aaa5b94391488602abef7. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DED831000804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d233d05dab5f9b670324aed197f512fd9302386efac022f7ab80bc20b3fc8fb. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DED831000809.
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 0xdf8a2e4ee143bf49893844677126b2a50b99797de6a9c0b20cb53174a99d4a24. 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/DED830800663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe69b031210ce6518121ea364cf673d73a8e7a31dd4f1ad9a23b7d757149f955. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DED830800668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44b2d95acedf11b339576c28ac6011bf148540f80edd0c2a17783de9854f1ff. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DED830800671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a26f4bf276c4e7b5c71e7e5c118d143426d941d3a89080466ff0e302ea6f160. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DED830800673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9941faea5b052eda1322c6b99c1b83f04d2ae75a61f0a55f98cb86b2c402432. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/DED830800664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21766daeb282f1cbc59113bec196fa289cc1037c0a32404026ae4f20dc04593b. 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/DED830800665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc70c315e70967d27b071a01e6f5b39dff70faf8399ba29237c48dbcf87c5f5be. 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/DED830800666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ba7676ff44a6c7b1824a015b3235f33e21fba7567477cd9d1c724aeb987a10. Chain 2 (Bitcoin): anchored in block 960376 (2026-07-31T09:09:19Z), 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/DED830800667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381cc276a3bdb5a246d97e5e1e5ed6eaa5a37bdf70de2ea31acd5de513852002. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DED830800669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5817f04e062d1a8cdc0cafdf4ace556907557ed037ee06d1655098cf62014601. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DED830800670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9957bc0573e0bde54ed1f38c9ea56e6bff9295d3a6c16b8cb7cdd9626e6abec3. 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/DED830697202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb578f9aea8fb8ff618d9f99abd31f84d0dbc6298a55595e252a59b0e2c6abbdc. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/DED830697204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e14dec8743bc4fafe6d338a3450cc9b87a8dda5407d6b81fb447f46b9518ed2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DED830697207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f7e306a8ee32c3222f24b7fe3cd38daa7153c94e04cce28eaf63dc9b85604d0. 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/DED830697208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b48cd046c70b6db17cffb58875563676ead3fea6c720ac69a2862527c1cd5ca. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/DED830697201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9af744e67890ca9c419d5d23b8e6d617ec868a956a7b265c2df8bf1253b2e9b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/DED830697203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7161b69c9b2857eeb64f61d44cdfa8b9be1f121427b6a527e5a003061b52cbac. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/DED830697205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6d82206bb177e99fd36036433ac049a1b901f98cc1d4568f0302b796305289a. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/DED830697206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ab294ca1c16f70310e43ff51f085c9c3f1318a5b25aacafc32007eb048d4c0. Chain 2 (Bitcoin): anchored in block 960311 (2026-07-30T20:45:02Z), 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/DED830697209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24777e9b1c07f5a4c670db78519a6c726f90807644c1b6854a2d25bc086a9318. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DED830697210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e64b6db3ad1af5735c9357ef823ef26cc91dc07fa00b5cb4bf6744e986be6f8. 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/DED830588801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403dcb535889f39824e8c8d8270276a4fff38aeae5657f9e8cbd011c8695daaa. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DED830588803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e20afdf662228d3a7899da7e309da69117fb3f2303e5e1fe8ae9e02a2cf77eb. 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/DED830588804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b205058d42b23b31d8c9b93a4da630fc96c12515abf646e864c2ad45d9cd47. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DED830588805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8a66d543df7156c2275a8fa333fc894695ef8c739ddb14fd16903aff8029bfc. 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/DED830588806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe775622456cbac7d92f3646fa0bfe88a89df114ffe62aaea7ac9d9ccf7827cc3. 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/DED830588807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afa760ab90f0d3218ecb14164999246c29042a9afdcac61d3b8f5de548289e4. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DED830588808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6674596aeb1344eb311d04a5c1846c24625a9a5454ce3495a99c0a6ed3c37f03. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DED830588809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373d2d711a17460e6a5ecbc974732a9a764bd48c8f0814073536e5ef652814e2. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DED830588802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633d61d6ac19808c4a2a1cd0547dc61912801281efcf86490e49cf86413d31c4. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DED830588810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccc009a8a7c7d1fdeefc8538f402b738cf01a9679f50ee52075fbd9728a2c0d. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DED830588811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f7a0c5aec4b37d5a25a7839fec9b6df998cd844140a1d6cad94ccdad4091194. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/DED830588812.