Submerge (and its variants) means to be covered by something (usually a liquid), such as being underwater: Submerged arc welding Submerged continent Submerged forest Submerged floating tunnel Su
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 0x2ed199f9c61aa6c6db3b0e0d40fff0da322def89e8758bf34b2a4e8131c31aff. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/054dffb2-bd0c-47b6-9205-f9b32ce4fd41.json and https://artists.proofprofile.net/proofs/artist/054dffb2-bd0c-47b6-9205-f9b32ce4fd41.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 0x2a7f4d8b98e43c716101972934e9a260258cc7759ba79af5d3233f532c318931. 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/USGUM0810115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e92be7b1f85500da39dc6fb005ace3cd8b9eb6dc418021e38c38f84f3df35f7. 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/USGUM0810116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47583d06fb9d719db35ce922faeb4c4693242a7ef5fa0c7d33d1f0188810a4a. 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/USGUM0810117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3574a841ea82babb6395019bdd02d16acbc1d89d0f56e7fb424d401104679e82. 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/USGUM0810118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf71081cf1a80cc82f5b1091f14990107e7cbb2abf628c8e01bf8ec65579d28cc. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USGUM0810119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3695442b2ddbc6cdd75bc886b6415b16461a0145a363beacfe24c29f70403048. 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/USGUM0810120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2d4e6dc00014aca788c5e74aed22fb6d9c85cf8ea91be7e0db6c646b50f6d1. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USGUM0810121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f539fb748a94eba2676cd78ad33c1080da63e9edd25c4f7877800d0cf8f37ed. 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/USGUM0810124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51a1859b3bb15e003313037a2f503b770540bff5763bb30d09850824edb4c414. 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/USGUM0810125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c890df7c1e4abb439db6e40e868bc16910d861a8e19ad6872715cca19c2aec5. 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/QMSL32100085.