Sol Invictus (, "Invincible Sun" or "Unconquered Sun") was the official sun god of the late Roman Empire and a later aspect of, or replacement for, the old Latin god Sol. The emperor Aurelian revived
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 0x0b0dc29968ae7f894cf5d382dd053cc1f920bb4c91697cfe6338116641ad3491. 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/823e0063-49bc-42f4-94e8-89af84125c39.json and https://artists.proofprofile.net/proofs/artist/823e0063-49bc-42f4-94e8-89af84125c39.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Raven Chorus - Against the Modern World Version
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 0xe783bc5a6bf671966fc79c32e3c0cd5a34d9186cd1bdb9a93c60b7f3db9311c8. 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/DES561190802.
Against the Modern World - Against the Modern World Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31df9b13218a913784e86be0e80b69c25a60ee53df17fdfad84868a8b994184a. Chain 2 (Bitcoin): anchored in block 957690 (2026-07-12T10:16:40Z), 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/DES561190803.
Long Live Death - Against the Modern World Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168c1e1029d44b32c6be5a49295d7eb742b54f1621b5b9eadda6eb22d8e28be6. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/DES561190804.
Summer Ends - Against the Modern World Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a36d7a14003e9164ab9e315b9ff4777ecfef6c0a9144ca1d7905d6aaa01af56. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/DES561190807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa2ae34530eb1774e587e4be43074c851cf65e0280d2317c1ee47c54afc0d151. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/DES561191204.
Amongst the Ruins - Death of the West Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x937fb2e53992b420109fd126561654f995eb068930fe67d379e23c1de80e829c. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DES561191903.
Europa in the Rain I - In the Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c83e162c84ce2f506b9beb39460439031c8fce1badd430d270016a688d92eab. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DES561192001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe521c72bc6400ff56f5e931c22c2da267c17a7683def6ddaa2b916a922c79a. 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/DES561192002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a89ce9a2d66cf37c91c253088b602db8739540e0f18998db4149d4235b969ed. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/DES561192003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2740a5bc260156a5d39d7e5e1c211d8bd974ac6640fab0e5751155efab8fce3c. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DES561192004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5989235db6c8c8710f75bd791e2e3d8fa5e9e7bd62367cc0380b3c27d58bcf. 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/DES561192005.
The World Shrugged - In the Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d8d960ecdfe691d5a37b46748b0c498918d13b785777fc789aecb2e1db13125. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/DES561192009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c2400edc88f7c10f313172de954522a4d625d8058663f29a256afb16f30842. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/DES561192010.
Europa in the Rain II - In the Rain Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbccb468566e026c353f924f2f5ed84db90d9b06351aedbda28a2bd135b7ac466. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DES561192011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51ba77b2dabdd918be9fc5fc6eb4f79cb6d0de3c8f0eba3e49f3188ed97fc859. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), 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/DES561192301.
Looking for Europe - Against the Modern World Version
Looking for Europe (The Neofolk Compendium)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf38b0150b4bbcfc7357fbe171a32d821c02e071b0112bb7dab56fb4d36177983. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/DES561190810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eea1b90098770be606248cfcd411767c9c71ba9da486019be5db87a495cc53f. 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/DEPI82402357.