St. Marks Coptic Orthodox Church of Washington D.C Choir
{"copyright_id":"0xb16712dfbcf7a5a5dfe6feb5056c5d6a93d50e1f970885adc56a74c5efeefbb4","name":"St. Marks Coptic Orthodox Church of Washington D.C Choir","registered_at":"2026-06-12T05:37:09Z","symbol":"NIM0202684","token_address":"0xaae180ccea854c331d9181e24af9693c950dfb54","type":"artist","uuid":"9cf33a36-ec0d-4277-b8af-e58e86286cd0"}
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 0xb16712dfbcf7a5a5dfe6feb5056c5d6a93d50e1f970885adc56a74c5efeefbb4. 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/9cf33a36-ec0d-4277-b8af-e58e86286cd0.json and https://artists.proofprofile.net/proofs/artist/9cf33a36-ec0d-4277-b8af-e58e86286cd0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Liturgy of St. Cyril the Great in English
The Third Hour from the Prayer Book of Hours (The Agpeya)
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 0xd83d698cb268774d25ef06493a32cd7112d742c04589b5dd24b2ee7719ca58c0. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TCABP1383765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f507b079102d1cb56a2d796c4fc26a4a26772767382e706127dba450b095d0. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCABP1383766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4f84b380bdf32a91fcfbec6efe8722561a1e06ec767662ca894ca617475d2a. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:25:04Z), 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/TCABP1383767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x750664071b64f7a76a7f57c636ef89df363b027c8ce6fa8fe649da4903871b4a. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/TCABP1383768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd79926069639bcd23c5fad606890ee9c7f3d13606486dcc09785184216eb25. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCABP1383769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51b208d941c9438dbe29bee2046ec677c714c3f87f5dd7842f0ad5c38c70ddc4. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/TCABP1383770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7dedd4e8841d69ba2b14fb3a2c35af6ddb47ea2803fb738714773e048e14357. 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/TCABP1383772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d960564fd9eeea77ae0c68346e598206787f6054d9ec1ef119cc3770abe059. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:50:11Z), 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/TCABP1383773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa9dd0a92a5162e657461bb6631cc870767a5f3ba2868c3240fe6bb24186e2d5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCABP1383781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509a20dbfd445033ad581c46980ad4506a2ab409d7373aa99100c307b54829bb. 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/TCABP1383791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8262af16483f43f14e2952e525041953b828275cc627a9837f357f2bdeacb34d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCACU1618345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3de595d89db7cbb9e2ab984f15a8efa9ad048cf3b02ecd45a2fecb54b95f668. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCACU1618427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8960d21c00bc5cb1c454520ecef7649d922634c318ef1a3a856d299300f7dd. 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/TCACU1618444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cffbe80e00724cfc25d8df974929cffc820571cba9f837c79c5f180952cc002. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCACU1618452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39705550f60ae43d5fa0386f4ec7087cc205821f6932d101cfc908b6e4deb179. 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/TCACU1618453.
The Twelfth Hour from the Prayer Book of Hours (The Agpeya)
The Sixth Hour from the Prayer Book of Hours (The Agpeya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190322d2d416608dac2b61607d6071e7fbe8f9620575fc63aeec76a74d545e2a. 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/TCACU1620580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357520743a78016cba6507cec80a3f7387b1e8daf71b36a80fc0dfa40b118880. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/TCACU1620581.
The Ninth Hour from the Prayer Book of Hours (The Agpeya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc80cfe0f16089c327fce292103a446f2473b4eaefca5d632c8b46527b45a683e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCACU1620554.
The Martyrs' Hymn - Coptic Bohairic dialect
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80e205c6e545ea9274fbeb62da8b582fe3db37f98448a5854be1d2f76bbf484. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZP7F2583720.
The Pure One - Coptic - Bohairic dialect
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01e0c9ce8eaab5d4687ae44d90fef19cd991d7115bb818d55394cb241f329b4e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZP7F2583721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb4d395aaa5003529cbfd5d04ccc1ef368ccaa7d8b1f8ad99fd60c456173f39. 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/QZP7F2583722.
Mark the Evangelist - Coptic - Bohairic dialect
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67b41975ddec82b835f8da09a4b82370d3de38b75da5513afa03f6365ddcca1. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZP7F2583723.
Birth of Mark the Evangelist - Coptic - Bohairic dialect
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7d6c5875c7bfbc8fac7e3440c739eedce149edc5c659b725d200f35b61fad6. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:02:15Z), 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/QZP7F2583724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48a002a8b10a9f9b308c21ce2fe71b820951d6c2b965163379a835555719f76. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:45:58Z), 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/QZP7F2583725.
O Holy Theotokos - Coptic - Bohairic dialect
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a53ed35c0faa8cead4451bf4f4bb726e8fbbd38230bfae09bc52ccbbcfe20ea. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/QZP7F2583726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c9ba7df175c4cacd1fd66be2e92b560569db79bf036f849a03ba57fc2d62ad. 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/QT3FE2583547.