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 0xa4234b664647cb11e7d515620d20e635cbd71aa7c6c6a3ad59cc710710229101. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2b077a1-37a0-4b89-a63a-c1565dcf373e.json and https://artists.proofprofile.net/proofs/artist/c2b077a1-37a0-4b89-a63a-c1565dcf373e.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 → 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 0x2279e0087d70f7b463c6225e4ed2540569f13dc8adf096251d630f91b7b22ddb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GX3Q92464931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe73acd259ac508405333de1c37e99837986e99ec78a7b5544b25e4dd40adb3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCEEG2000343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7b87c7e997ef8f2f1709d6b378bfc635f927a8e2c2a4d7f272f518c817c55e. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/QZNJX2050496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d3ffbb4b9fb6c11200de65880e3b96108dd6e5a41ca3d6879a25ae0be6721a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BCEEG2000344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c96b07aa7dcc8b8cbde0bf9d010ff23ff11fdd4f7521243f2e9ed76de25a90. 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/BCEEG2000345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x452bcf256b485edf67e52716ad9675f3c6bd7adf16107db2466414c30918abd0. 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/BCEEG2000346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f091620c0f90a7a59798c21fecbb4634d380634fafc7e5cfa7294b194d3dd7. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BCEEG2000347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2823d67457de3e0d53287981b6078bd646a4bbfd37ba678a4e31490b301797fc. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BCEEG2000348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9c1188ddf446465d8c5c2d84e8880a7e4889081fde70f0a81a2195b40f0865. 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/BCEEG2000349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x609b6a9a2043e5bd2349ef6a562088c95943f60163973b67e342fab9c2cf9ca1. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BCEEG2000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830f2c4a18b52313fa209432b5b84ca398b26c344a7454a5a8d17d30f2647468. 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/BCEEG2000351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107c5e44e63209ea4d466a9192c79f85e92465085b909c9019cabc4cb805fbbc. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNJX2050497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e01ebdd09b6d9644a52a96eaf63f1123362ba4274773d4271bd89b131134412. 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/BCEEG2000353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb4c675a9913a1e12506614756aeb0005cf782eb9759edc562fad8496325fc41. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BCEEG2000354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff57d86b7e1b7bd94dc51ebbb34e0ed277f1e53e8fa0e782a07d4bb665e7476d. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BRRGE2010273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737c30fbdc97a82d0ec081fd5d67f3691a0076e2cd1c7d66b02e5c3949b6416e. 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/BRRGE2010264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c43f970e567c1091532abe5cd5bcb14a1a94d1db7978b8674d9309bc0b324d. 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/BRRGE2009199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d5f43ffe72867a06f77eb94fbf417020c1559b564413af14fcfedbc662d48b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRRGE2010269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0a33142050177d89c9757c203133188c3d7271deef1a328bfe33ba1814a806. 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/BRRGE2010263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8248499e20f3fb6407c4cb9d91aa055a2e98a1a279000a91767a7f629046ec14. 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/BRRGE2006945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6f51e3104a13bd0d18ae6309d071d3769098e7b50ae049d198210df91ee44da. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/BRRGE2010272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe79e8741cb0c273890dce3a3e12e4ca9a12b8143b1bc6e6c565775e4285ed45c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRRGE2010268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ffadfdb8846ef484e56f49baf3c66dcf3cf722f71cef1b03a04b0b8ae8f8388. 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/BRRGE2010266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfe78ce7f0a9620883e697ad7490413f211d27211325c13bd88ee69dc96e455. 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/BRRGE2010267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1557bdb6b16fed54cfe5f390b0cf92b6649695ccc49f9f9eb04eb251e56ab284. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRRGE2010262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1de2644055310f09b32aba202db79961737d8971cc633df9170a3de56b14b7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRRGE2010275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e068c61bd44ff007843757e1d31020779153f2da50d0e32690fcd4eab888559. 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/BRVWS2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19199151f9443295736912ab2a6d8be89a1d76ead0fb2aa55c6ae41285298c7d. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/BRVWS2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ecad60328008454c4e0154ea5758917f9464556fd2a3ab0202124c123feaf14. 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/BRVWS2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e706a95ec79882bad1207d5ab728f456f1cf01a22e9c2c2b211a120abbe9e4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRVWS2000009.