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 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 0xd87aea8fe429782340261ea5bd98b9087f1829f8a1a0aa8deddb1fc5b577a849. 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/adeb6191-3355-4876-9b70-dbba3c2a1b22.json and https://artists.proofprofile.net/proofs/artist/adeb6191-3355-4876-9b70-dbba3c2a1b22.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 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 0x1cbfedde39ed9e26c0953c21be8fd4b6963aca0660d7b727a510510e49d290d0. 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/QZKDK2267643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe111e77399418f7bc18f7e93b18922f6cb792a6670b171e38d3fdddc3a61b7ef. 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/FRX282264469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b07d6a771cde613834066df6fe5cc2a6e4eead0d63072f34f8aa1c4f4ad913. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/FRX872218467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b07d6a771cde613834066df6fe5cc2a6e4eead0d63072f34f8aa1c4f4ad913. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/FRX872218467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e8b6214ff5aceb6ac1e2c9a0adb8d57d9023b39facae582f428d9e271dd435. 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/DGA052231058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f78ed03fada78c54010ceb62ac1ee64fa0015ec5a1ebba215cfec4206571b9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRX762318603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef365b2b57bbd7b4921fffadc451a32b92d7e6bfa39ed9231b51e1e513ccd78f. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FRX872393266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3993335c5ed1676822ab215ade81907d4c85de8afe22e6b44cc2e7eeb5d49b. 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/DGA052395757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf62d5d7614c1911f5227477c4a87c0518d584db8d8c68ad9c88062ea998332. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DGA052395759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ea836292caed44d4907832ddf0df337ee1ae3d5b447698371094408cec02ec2. Chain 2 (Bitcoin): anchored in block 957761 (2026-07-12T21:55:15Z), 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/DGA052395752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14f78ed03fada78c54010ceb62ac1ee64fa0015ec5a1ebba215cfec4206571b9. 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/FRX762318603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef365b2b57bbd7b4921fffadc451a32b92d7e6bfa39ed9231b51e1e513ccd78f. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/FRX872393266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615d104de2bb5d31f8cff0d5aae181e9e903d63b31bc23f5e39be053e023dd7c. 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/QZVEM2376986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3859a38ad30411ae0c0b59e4e30f807236a1df239833c9fb890676652af33650. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZPEW2414457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275b4b35553c8335af66ae5d5fe6b2afb413999b3dfc1f232a887ceb18d15dc2. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZQAY2493642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61df85dd8ff75beb8d8dcac8ffbf775375b284b26146a5482362c327d2774ab7. 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/QZPEW2456371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3859a38ad30411ae0c0b59e4e30f807236a1df239833c9fb890676652af33650. 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/QZPEW2414457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978081e79eb9572fd9dc0bcaf4539780e6acfc7d1c04aa13a2bd1b87f1a3ea58. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/QZPEW2438337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb74b9087efed64e396de2b5d54853ca1d7e603b74a9dde1c9a42e8d38a658cd. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/QZS7J2443572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23226ab65eaeb59cc61a7a9a12a5539158497673805058f9a416c44e169cad4a. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZS7J2485507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0b0249bba81a32755e653b2a1aaff5c368cef99da986b6af09de55579bab0d. 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/QZS7J2424111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23226ab65eaeb59cc61a7a9a12a5539158497673805058f9a416c44e169cad4a. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/QZS7J2485507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c258a73a62c5d21473741fecd44033e34f965096a6aced31d4dad28799ea34. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/QZQAY2598589.
if love is a choice, you'll be my constant answer
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dca6a412d72477ef5dfba964ea5d332f3f1c2df36a8e3dc9df01d59c749c4d4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/CA5KR2586184.