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 0xe78e0305cb13579b8b4f4605f2363ced2ef62a45351cce851a73ff26537a7ada. 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/6aece0ea-522d-418f-b736-a493ac1f6932.json and https://artists.proofprofile.net/proofs/artist/6aece0ea-522d-418f-b736-a493ac1f6932.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 0x61c51e7e95d9f79fe8fab957f992f31b1c7a23dd86a8b4a19ae8afb01e52ce6a. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/GBWUL2162210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cba136fb30eef7552f7a7da034d6f2f32a1fd22d7969b2d4b8406de0670da69. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBWUL2162212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5586b01d97b7b00cd172e2697b72bdfde86b54c3312709471272c0bd3ad95a2. 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/GBWUL2162219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863e1f23bf8d8cf26619a0c9720edeebe7c0e6c4ea67ca760a144258b9af54f6. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T11:26:15Z), 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/GBBLY0606412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5324f67115016aac623251a566dd3518f952e7d951b923455d8ef448bd44b5bb. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBBLY0606416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10897367c7b73305b697cb8dc3e3c4b17a22c052d4c8613e410638663f663c0. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:44:52Z), 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/GBBLY0606425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88a483863e182bb3fec592caa457f6f8f51771b19a6b9cc6f6e7d68a7647fb6. 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/GBBLY0606427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3122b41089d0888f1f627c67e3ad2d324acfd4cb6a71a12619b2c7edcf686c34. 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/GBBLY0606405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb188982f7ad4fcb043bdaea6564c1ce71a83cab416bbcd99ae03bd7c03e695e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:33:43Z), 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/GBBLY0606407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd576a0793284b518c451d01ae190efca3f97f09a3b54551e502b4e97389e7265. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBBLY0606409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ab78d2b6d1368d98423e654a918148ddcb5fb099ce1836303a4c603c294e52. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/GBBLY0606411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c371498ec8ea8238686578406ae3c6f1801b4de0a1a7dbba002575fed5c1139. 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/USHM21503536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21b6cbe71057e2a39b0d149f5824901ef57c4e4ee6578c9596a08adad9467b2. 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/USHM21503547.
A Very Special Christmas With Frank Mills
A Very Special Christmas with Frank Mills
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eda6e85668c1f42e65aa1e06c10e24bcd3fb8c11058f97a08363905b5e4843d. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CAP237900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b586d9546f35e4c0aca37341f885de8ceee3193a064735fa3e136379f31e15. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/USHM21512743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c52919558a6e0cce0cf58c22e1da707c761dc880bab52767b6ed477f5dc821c. 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/USHM21512746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57373562716b53a969ed318b453ce074ec4ff337ba2a85c5a40b324f7a15477. 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/USHM21512749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dfc346e232ec72853e62e48a62acf68698e9c875b6766503cecec9a9d1ded3. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USHM21512752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a8da0553ca29a4dca499a8ed66ae1263c5ad70f2005c477bfc58fe89c10afb. 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/USHM21512754.
Mary Had a Little Lamb / Yes Jesus Loves Me
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4c4b2c85e6fdff78243f6a8d706e5f7053ac58f9096cccde4fb2859b0421d7. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:32Z), 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/USHM21512756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99084e3fa2fcac3f61cc7667247a7b6d5b2021f8a75099d19218783db7969e81. Chain 2 (Bitcoin): anchored in block 957540 (2026-07-11T08:19:50Z), 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/QM2BA1500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03c83d6f41740e7275c2e0da252f16775627c023b584169d8b2f04773e3cbd7. 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/QM2BA1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98ec9081927684f8334bcb3d9fb9f59de7c6ef807fe2d04205f675797f457c95. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:42:38Z), 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/QM2BA1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x603707f1e8c5ade00b5d6d35e7cd63d8734c8989865b4230df107f7450294123. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QM2BA1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e648ec5669a7b7c778e3f10e42e6778e43fd228546e0ad40da728e255b9952d. 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/QM2BA1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a84725b91537fbed0fdfb0d1bf1120a1717b6d6345fdf7f12bb1548322f8e51. 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/QZTRX2458479.