Opera IX is an Italian symphonic black metal band, founded in the city of Biella by the guitarist Ossian in 1988. History Early years: 1990–1995 In 1990 the band made the first demo tape "Gothik"
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 0x5f27c9f39b7d2890e527644369268d4231bca43a25521f6a044007156e3e24bc. Chain 2 (Bitcoin): anchored in block 953701 (2026-06-14T22:16:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75eb3928-b314-44b7-a2d8-c7c5c01b6fcf.json and https://artists.proofprofile.net/proofs/artist/75eb3928-b314-44b7-a2d8-c7c5c01b6fcf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Symphoniac Mysterium in Laudem Tenebrarum
The Black Opera: Symphoniæ Mysteriorum in Laudem Tenebrarum
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 0xa3b112a2d3987ae81c141bccd9870eebd515a640f828637ee37107803a6d40b5. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/GBCQV0900798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f138d138f619b6f454d72571f3691776611e59dfdcc8dd50f1aae995f52595. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/GBCQV0900799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57e5fa4d0606b43e8d7eaeb0fb6634907e671c53daa55ce9565ce246972b7ff. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/GBCQV0900800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e9dab812df11696ba8449fc31548b4a822eece65e93e743a18f8b7f6c5403c. 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/GBCQV0900802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa201aeee21a1e43ad77b6785f99a3e0b58a11c92142a30b11bed7d61bcdfe46. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/GBCQV0000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592f44d136d161386ef40554f3467815fcfcf5cc4bbf1c9e637cf3fbfc14e4e0. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBCQV0000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9524751b1728c986cc180cdd8df435acc93f66d064258bfb6061a0d7e468886b. 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/GBCQV0000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f5db8e243297f3bf116386da57c6e2519c2ee2a9e5b712501321eeb9d225d4d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBCQV0000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21c48db085a6aafa80fc8e3d7c3784cc1f37f6dd10f4b9e224b8c28e751e0b1. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBCQV0000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32125cddfeb303d4f84b897b768e33ef8b7ca11db375523bda858d567456f76f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBCQV0000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52fc8527473fa9d74ae5b5d2fda7011ef76fe08fd152ce358e260419bc6b22ca. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/GBCQV0000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8988f304c9459899a1bd6a76fc12a7d528dfe5a59588bd114a2a845e12bd37. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/GBCQV9500122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c527315a165c0b3c668a101de51cc6fb566ca188524f958d99ea2eecc2f0c78. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBKQU1599877.