Carol Duboc is a singer and composer. She has co-written several hit songs, including "Precious", sung by Chanté Moore, which was certified gold in 1994 and reached No. 20 on the Billboard R&B chart
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 0xb576c7485131ca5f27a46fed11945c9e7180a6b061e86cfca373e446d6df56aa. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31c33187-4b99-4b97-9e7f-8c3383559862.json and https://artists.proofprofile.net/proofs/artist/31c33187-4b99-4b97-9e7f-8c3383559862.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Stand For America/Peace Around The World
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 0x985db5e02864f77d37bf8b08b032e74d06b1f7fd344188e4488c1f24f94b994a. 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/US68D0210089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73fdfd32108234c4b9afc1ec88d0b4210bffcccc72056e7008f6e61df3dc95bf. Chain 2 (Bitcoin): anchored in block 958506 (2026-07-18T06:14:51Z), 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/US68D0210091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa793f1159523ca1f28a7692bf89c0cacaeeb973dfe648459ad1627e646dbc939. 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/US68D0210092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a70c4b2dcc250856c98dccb71f654304162016bfdfe2b844bb74b1c22ce0dc9. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/US68D0510077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc18985a36866a8c479b2a430297adb164a0cb6e37c7d1e6bec2b9fa3aed2cd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/US68D0510079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd534415fc84235a5d6e2bf5fc4ffff0e1ebcfb41bb8cbc6b98cac4da03a92a4d. 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/USMRZ0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c08abc1dfb785db24954cff0e2d02c177f43bfe784099beea257f79d56bc279. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/USMRZ0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d97f4780977c9fa2d330984a765291a331c4ef387dd7dee30443b18efe07c0. 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/USMRZ1300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6667ce10049225110f325c4a6775409bd30ff6e5f000e84534304f5e35df8e4. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T16:00:19Z), 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/USMRZ1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58618b0fa2f05d5b27ec2a2d3114bfd50eed64134c1b0649cb2985b693bbf78. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:02:52Z), 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/USMRZ1300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9906afdff80c9354c7008b7e707627700899871706238dbe7f15a2bc06583f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USMRZ1500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47440fa80aa2a14101c7024ef4eb0ed2c331bdae2a253cdce4d97d42b560524. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USMRZ1500002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ceebab80b98a9904d036200538592acfcef67a83070d30e36d57962f7d3801. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USMRZ1500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380e5f399fc16a7d89fbaec7a94f8cb90542c277641269d81e4a597f17588256. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/USMRZ1500005.
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 0xf2f26360624a10d16004f3ae4116bed058c862aa358928b84d6eeb86ee78a379. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USMRZ1500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b3c674346cb6fbe28d30069e5b630df1f287463ec5d10b526ae7ca19743098b. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USMRZ1500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f65ca4e66e9074dab73514fe6f99acbb2622edd986118b51663e08cdf7c4462. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/USMRZ1500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16fcdeb7be6d4705aef51e43906fc5c69d9a99b7c2576d6445c03ac29535b2c5. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USMRZ1500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e66d55c9467c9db7e48ac03c4e86b6d9a8f27fdff848ca26f00fa13f68ab3c. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USMRZ1500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0247b95e36e19e325eb23db622dfa08f3befc850238cec6b686753cb081d4b16. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/USMRZ1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc074bc6d1b90a2e566c7de5f291dc9eeeec4c5905dfa729be45164c07a61066f. 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/USMRZ1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f017c6d9caa2ef572c114e9f8f3f848e30812571a0afbf8178557982439dc2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFME2087848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901e77a8210a80ce696b94a5ad1e087431abb18ba3c7eb5ec920a93b8ee5f292. 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/QMFME2087847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94a4f40e76f4672eb9dc88ac3fbdce681ac6e7033a26fae5b095c152e1cd1308. 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/QMFME2087879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd18308196ba6140d0edf78ba5fc6173d3840cb5732decc2f4b04de72b1e5c51f. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:01:00Z), 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/QMFME2087845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d3fa232da492f6b98f3e32065a7359ee3eea1553435ae7ec790ee476d9a72c. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QMFME2087837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113d1babfac9e172855a101674f6d4248c016f2841227db3afafd19d70f7cf04. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QMFME2087894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028fbc7dfc95113f478840c8aaf3286970a9df9ec8d9afed2551df3a6af792f5. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QMFME2087888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e3a6c9ffefd96c357c093f6ce66f01567556acb53a6d4753aa8d32c5b02942. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QMFME2087869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f26b621424b58230884302311e5aa1fe833d53627c229032cf342c1b260ae6. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QMFME2087873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bd71a25000da320cad90f4b1bd7132b2ef946003bcaab6261c7b0252ba2c818. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/QMFME2087880.