MODX (originally MODx) is an open source content management system and web application framework for publishing content on the World Wide Web and intranets. MODX is licensed under the GPL, is written
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 0x7dc31a2e2050d500ca7571d7ea57dbc0bf87de79077beccf3292cf5c7edb3ac1. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ac6b8fa-c791-44a1-b5d2-8dac8af58987.json and https://artists.proofprofile.net/proofs/artist/6ac6b8fa-c791-44a1-b5d2-8dac8af58987.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 0x59fdeac1b607e99730dd39ded7d7946dc69ba7460c5778971082a59f5c7f775e. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/SEWAU2100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b16b5c1e3ea143bb790bbbe0cf3f277a8d73a43b5880c3a6637b685fdbb6d6. 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/SEWAU2300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cfe30b6d7cdea98aa1026b58c564bddd82523e73c6bdc56ff06727eb55064b. 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/SEWAU2300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576afec1cb1537368f658257181847b2f9eee727fcb32407b2124ca0025559c6. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T03:48:36Z), 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/SEWAU2300311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59fdeac1b607e99730dd39ded7d7946dc69ba7460c5778971082a59f5c7f775e. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/SEWAU2100301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b7b3a4457b19049818d4ada94531aa43763cbc974e91f5e611432441b447eb. 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/SEWAU2300304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9554ec26d8d065cb810834d07472878d411f22fd517f0ac6b8217e67853ee56a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/SEWAU2200302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebacb2f4732b84d6410f9ebc4e59459075f1a7a526ff74467fe44b7438d2302. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/SEWAU2200303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541ad7aaa802683f675f007c3488f6aa9dcf7a6b686dad7fde10fa56dcff364b. 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/SEWAU2200305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11cfe30b6d7cdea98aa1026b58c564bddd82523e73c6bdc56ff06727eb55064b. 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/SEWAU2300303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea45a88a4e77675ff2967416691665be21fce632475676daaa093a414ea87d3b. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/SEWAU2200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa06ff62a0b3bcc9fd8e3a41181176f8523e6c503dc5093c0f7d01f58a24a79. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/SEWAU2400316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e294c246ebcc7ecfb736972796e3b40a880133de027187cc029f14fc0ee10c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/SEWAU2400317.