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 0x0907a3b2aefa46270b7466293a723b07825150fe5bc1ce4f378b6e0fbbfccd54. 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/74ad8628-cdf6-42af-aac1-2cedaccbd7f6.json and https://artists.proofprofile.net/proofs/artist/74ad8628-cdf6-42af-aac1-2cedaccbd7f6.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 0x443f2aaf261145392fb18f1d5b7c56741aee9858e2acd98c7e7093564c7e4713. 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/CAN111100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62929ed5dd8d536b0da3ae2d5e513040cd3fa5744bca3f3cb4df640967e887fc. 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/CAN111100255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb47969c1d1a70fd64705392d8a21eb152da0a551366fca7ff71ce5f4efea50. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/CAN111100253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd710a5a8e5003a70512ec5de8c39187438724c55a5c573f17ee7043f42664871. 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/CAN111100259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9fc07e9646cd653ceceb9698aa040a4e14dca0e16eb142fc73bfaeddc1bd92. 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/CAN111100256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2aa8dffb4fc7c1f26d2f157f1c1d29229918462839e0c6f43b71df67a3df6bc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:23:32Z), 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/CAN111100261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb04a87b2b7dc6611f5bf842071e1c3998bd4cd728677bc3a128c7de59c919a. 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/CAN111100264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5df8993c86b144c18101cbebeccb230caa3ec20e15ef69ac457805f56f89724. 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/CAN111100356.
Bad, Bad Leroy Brown - Live At The Armory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f3e14f9c7dbea1c36cfdf8f1e4e44a1261581500fd9097da0f78576fcb2d6a. 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/CAN111100366.
Up On Cripple Creek - Live At The Armory
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13247a4a1810418cc8e7ea5d239e1653a850153fa22f186b15fbf6c2b8079d8d. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T00:35:28Z), 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/CAN111100367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2048c3f8501a14573d8b88740835ea38894b657a989f7109742a88cdb6b81954. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CAN111200513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf523ffb1b66c3ad91ac748d3f6c61ac7b28479d0f8dbb9385e7ac258db086abc. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CAN111200514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfbe6b7599e26a309ce4f709ac7fbb0bb3943300ed1acd01e1eff02f159c0813. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/CAN111200515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c1eccb9ce71f376d3b25a99d644566ec93c389706634691fe530e7d5473d7a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:11:27Z), 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/CAN111200519.
Rabbit Inn Rebellion (Commentary Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7d7de255d9e2e35909d1581e7dbe44cae6d4fdcfb45d9a5be1f66f1ac13667. 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/CAN111400485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17c09e1c95002b830d454ef447257fdd8236fb6841426f2d3cc39368ad1f9c8. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:36:58Z), 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/CAN111400486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc30a406fd574295078845fc62c8155d60b3604001134943546f3ef6e06d0725e. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/CAN111400487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e68b0ea4f6bf947de4d20b434006732eedc231a3a7288ac78d25fd3086ab74. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CAN111400489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd69f11f515dee253d4208b3585b38e93e1aef23792462a02e60d2bc8340e453. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/CAN111400493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x514ae78e2b1dbf3fd721ecc55ec52155ec697ad366488723215d007fcb890283. 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/CAN111400494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75c6b1b02940b4765b75054cbc79cdb66d788da2ea849a76a036b126a6ec381. 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/CAN111400488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0e68b0ea4f6bf947de4d20b434006732eedc231a3a7288ac78d25fd3086ab74. 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/CAN111400489.
The Horse Comanche B Sides (The Story of Bobby and Maeve)
The Horse Comanche B Sides (The Story Of Bobby And Maeve)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fc3ce980fc767fc9ff842f51adb28909697872aa8372cf8d578d693e8c257d6. 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/CAN111500429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef08584a27a2c18bb4eec0aee905f9d9b832c962298d77bf7fa19ed489a15040. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/QM7281988220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce259195aa384d4d42de8449a81c1641a43175cb769a92bfe9d0ce5e8f00d333. 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/QM7281988221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fdfa30f6b74afa5afad0af29d21080784a8be1a3de371d69c88236593797368. 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/QM7281988222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb5250de6d479c0d5294d5ba702c470502b2f0607b789d676285795c435ac60. 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/QM7281988223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd075ba031ea5c9bc5340fd82fda97130e12b15e45ac59e468176291b09a58904. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM7281988225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc756d1f027837cb9621cc85298604314504a6fed8f5397a94d43c2871a36108. 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/QM7281988227.