The acronym LOTH can stand for: Language of thought hypothesis Liturgy of the Hours See also Loth (disambiguation)
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 0x932557fb02db49deb8ee36c2b88bc2c19423b274f11781cf0d8f4fb04dceb23e. 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/69460d61-3140-40c8-8df1-982e7f8d8531.json and https://artists.proofprofile.net/proofs/artist/69460d61-3140-40c8-8df1-982e7f8d8531.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 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 0xf566b367ab326eff1fb7b9da71fab3dad86520f0fc2815d17ef240eb6ac57de3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BXIV82137783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b23ddbecf5292ef0888390c8e9b02d399bf78e4b1089e7f058c4073e65bb10. 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/BXIV82378737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab4bb9f1c71e885bc72fbc509a7afb125015852da2b156195ebdf1f86ecc729. 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/BXIV82450518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0525184d81745c80bdf12cf6fd169360ee8138fadc73f14aeff51428a0d67e97. 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/BXIV82419627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a645d8760eda99a014d08e700458c72e462cd784bace8ae279dc46db33a86ff. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/BXIV82450195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb1e536215019d85f1996e697c5247b6cab0404cef28bf12991e1d0ec169711. 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/BXIV82464202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9246fae319907d8c7145038e1b4776ee4a5ad211a7104e4e5e38ce6baf3e29b. 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/BXIV82460526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0280a049b83dd3513f1a597ce9e5c6612a82f7c7418c19b7cdb72fc3998099c2. 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/BXIV82432229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c32a78d5ead10577baabcc25e8c367ec310cd03220c6a80b6976509725200f. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/BXIV82491506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50d49c3e768a26a0cd0f58743e698cce924f25a75228eee7cb1ba5cd523fa30. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BXIV82433743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95a606498d7e5673ebad372aeced3fc41754ea05883f90a4f62740f26cb24c5. 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/BXIV82471336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ed757b21c542a5e72a202537fa87bcbe758339cbca3803b2fddd1ed59815d7. 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/BXIV82492868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x676cb26df46d4641f436522121086eb3d119453c10d772305cbb3767f8b1fe63. 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/BXIV82426238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8276a5757e02cfc8d77dd44a58d8eb5bbbd73275c65fb2dbfeadc9c1d460c884. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BXIV82436724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf566b367ab326eff1fb7b9da71fab3dad86520f0fc2815d17ef240eb6ac57de3. 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/BXIV82137783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e7eec7d512a01d635cb4876d5cf4f8dc0fae29bc7acfba5ada1735b40f6793. 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/BXIV82449062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f058441f5ca6e56c245f46198ed732911d3e31c91eda09b188f1243ccaeaa7d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BC6M22530613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5228bf12fa553fa6cb02639b0133274048ed87364ab7f6da9ae3f18308a27b8a. 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/QZNJY2177114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975ccadadcc2d48c94c5395da77e18d1b997f0b0397f0b7c6014119fad4ddbc3. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BKLOL2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e3c97d5e2e98b407c47b99aeac1be3a8ab7d9d5aeb658b58b4c123b9330e7b. 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/BC6M22409954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebb4b370b56bc0f12797590d0ff898ca4f5b2f35240c077510a4a426b482553. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BKTJU2400021.