Obsequiae is an American medieval metal band formed in 2007 in Minneapolis, Minnesota. The current line-up of the band consists of Tanner Anderson (vocals, guitar, bass), Vicente La Camera Mariño (har
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 0xe260a437d4dc1fc56b1404e0d847bb47c37b080be4dd0254de52ddeeb5e3fcb6. 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/560516ae-1e58-4731-8ec9-7072a8f43d19.json and https://artists.proofprofile.net/proofs/artist/560516ae-1e58-4731-8ec9-7072a8f43d19.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 0x4893fa65496da817731a61a55c8b04b0bc373d226b1a55f53e507c9de5e70015. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USJE71510017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649e7cd5fdf28a0fc53053569f6594debc2cb7b3335476f912e02166eba2a1d8. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USJE71510018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba634cdb5b8c160a4c52da619b5090edd708aa818a471691ad5cfc770401398. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USJE71510019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23ee3497206386e439e0311562c9907fdb02f7cfb02f2adfd689f068de8e4649. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/USJE71510020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739522391fbdf489784a71405e8449123172c308698c3cfa9ed1daf7c1964d80. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/USJE71510021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48297ad2e543f4682cea9b35d8ac9129db270941aa74deaacef25b38e46985cf. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USJE71510022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19ea8a72bdfcb1729ec4edd288f41b9dee2d960cf88b159850e08f96a817135. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USJE71510023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75a585fdc4d0505a36a42c1a286fb5e0b967584861c8abca287d33e20afc3701. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USJE71510024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45c5312086e4a42ecfbd46a84e1a0abe4b514ac704ccdfac592b78e8a0afa694. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USJE71510025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c05b4c544f31b7b81615bf4238d69e9e0893ea8b811bc24f20228e2c94df96. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/USJE71510015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dc2bb77d905927537a1816897edff2f13a7b944860f6bf3d5ad79a1ada616c. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:51:53Z), 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/USJE71510016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4893fa65496da817731a61a55c8b04b0bc373d226b1a55f53e507c9de5e70015. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:38:16Z), 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/USJE71510017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739522391fbdf489784a71405e8449123172c308698c3cfa9ed1daf7c1964d80. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USJE71510021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19ea8a72bdfcb1729ec4edd288f41b9dee2d960cf88b159850e08f96a817135. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USJE71510023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7447b4bb5ddf635dd4b24050bab891666fe12e97b95b632092de771d3ea24c74. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USJE71912201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd7f902a1c00477c145a76bc309b88dc52141de867961f2a8612eb60f428dc7. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USJE71912202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0450187666bffbb062e2cae774088788f55623a4f698e8721e84b2173d92a9. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:07:40Z), 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/USJE71912203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9184e5d5f50558ec85859302a6c0074c9aae0d8a61701ecec147355206546205. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/USJE71912204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc25672c0e4255df0369f3b8359394a8df9541dfb11ceb7c5e4ec0c55438db343. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USJE71912205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0355fa41d9ab31f0abc1dbb629380f7f1685ea71e55f66bcc47543eb7d700d2. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USJE71912208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7447b4bb5ddf635dd4b24050bab891666fe12e97b95b632092de771d3ea24c74. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USJE71912201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9184e5d5f50558ec85859302a6c0074c9aae0d8a61701ecec147355206546205. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USJE71912204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5096caf346077cb6b6ee78470a4abc82c0133be847f9bec20ad90b8df4eb3e7. Chain 2 (Bitcoin): anchored in block 958514 (2026-07-18T06:54:37Z), 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/USJE71912206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d209af27de1d09f56abba982c8104e4ab06bc8d450720fc73244b68b69599f. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), 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/USJE71912207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0355fa41d9ab31f0abc1dbb629380f7f1685ea71e55f66bcc47543eb7d700d2. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USJE71912208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c9f0fead8a2e9211b845215959e7d220d3229502c5c2cb9e4c88e8f88e1c63. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:54:31Z), 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/USJE71912209.