1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7a47a9cec9721905c87e47b624958ecdd2b41354cf02dcaf97ff194be5a087d4. 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/24ed2f37-0184-4641-9281-41bccb6b36ea.json and https://artists.proofprofile.net/proofs/artist/24ed2f37-0184-4641-9281-41bccb6b36ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Pascha: The Orthros Service of Holy Pascha Come Receive the Light
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 → block OTSBitcoinBlock must exist at that height 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 0x863837501a519cca4c47a620d0e37ab7db94d512d1318a02b3b2f87117e02c83. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TCABA1135182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541718394780265f37b99a4770c06fbdaabe51c28dc4d5ea6a5a0647c05587a6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCABA1135184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020e40324ce65ba6f5af23851d980f83a22d01036a20ea4bc5e45495320ec0aa. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:24:22Z), 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/TCABA1135188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f11faed9bb3147d8320792fe6bd49420d774f3ed000a02717c8f91064ea9e3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCABA1135190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b60299be455fcf4d9cb0815c5c897d359a1053dfa9a8f1304b7e9156530294b. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/TCABA1135192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7300dbc28f7f15dd8d7ff77e159c947e9c36a939bdaaaf16a48c0f73db27a4ed. 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/TCABA1135193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4501e6f9a162d02739b186d2f99af2b491148b2b961ddef66d853c799f00a1f9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABA1135194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7a3798edb8651e76c37ed0fa87347c7c9848e1c3f6fc58da558997edc87258. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:19:05Z), 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/TCABA1135195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e3d94621683f678e1a7b853fdf0b6d0fdd5734ffc03b3d2607674847491a40. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCABA1135196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d32d0a0ec89d39a901c0e07a20df107ab24142a9bf8695db0ccbf14e95270c9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCABA1135198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a2418655c22e3fb7085f06cc37e69d8675583f54adc8a91079332355f72a5a. 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/TCABA1135199.
The Saturday Service of Great Vespers Chanted in Third Tone
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe331ca323b122280106f19c79738e432620d38a46d4f500e29003a0dfcbfd2ab. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCABA1131448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cf64a1ddc47eb45b2dce9cfe581589d1865908b6d711c7089c73f02b4275b5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCABA1131449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x294fc95afe0808d2c80b1adc1b620e989072329adc4bc7498efa21e8c9592ea3. 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/TCABA1131462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbace88305668a306ffcdd020b204817456bb91ba31c8de28d52a4017a8b9850a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCABA1131466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed687e15e6c84d6ad5c7ecdaf1eb1616a0dbbcd66de4a0850adc3c09ff55d9f4. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/TCABA1131471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cb885eec3c3b85379480beda32a77e5436acd1a09081e5ceb64fd2d4e9e65b. 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/TCABA1131475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fc9f90adb3ee5db7f2606eeefda7fc412baf8abe8f1ec3c8653b4f21e84dd14. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/TCACE1589803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe121e1460b2b8d37c98027905ab45351e77e6dbc76c29d60600da058657aee2c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCACE1589806.
Great Doxology (Plagal Fourth Mode Greek)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc01f7a8e046cce43612a582bb92ead7f1fff11929cefea3d41b53a1b86fe63. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TCACE1589810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71118031e2eed08ac73be72394bd04029733a4f131dd800f59d7a9d96796a865. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/TCACE1589811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63fcef88772fd8ad924dbe6693ff72a8d18c49c44a6ab2fdee9f006f7e41d3bd. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/QM42K1757706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499590cd59a8eab922de8bcd6bf78466b3c8347efe405c76c1e104c7fb1d9800. Chain 2 (Bitcoin): anchored in block 957780 (2026-07-13T00:36:44Z), 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/CAWK52502545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x430d485dee6de4a869b8c5849e0b6a56006a804a85b83e7e63c010c05edb871a. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/CAWK52502547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x584831d1c57c227ad889e3cc80eba7139e02efce7400794b1d2be84eab6dc18a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/CAWK52502549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f348ed88d9d5dd65bbed311a21a5b83129cb389b3471a0d2fa6428a4b053f65. 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/CAWK52502550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67095571de0d519adf6386da6679efc324ed56b7b554868c9d7510c6b879fac8. 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/CAWK52502551.