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 0xdedadd3299311c3306efc29844911337e57a2d09e4cf6e4914b51900c098d7a0. 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/0bb17c17-cb88-49f8-b42e-2317010928a6.json and https://artists.proofprofile.net/proofs/artist/0bb17c17-cb88-49f8-b42e-2317010928a6.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 0xb4c8424b48b0a104708d3fedde745959f7caa55cfd754c7fb1f6a88b152d7e1f. Chain 2 (Bitcoin): anchored in block 958091 (2026-07-15T03:17:03Z), 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/QZFYX2383763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x163f21e1f7cd26915bada63a27bfa33b416bcdbda1e6c289b8838cd298b9a560. 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/QZFYY2387520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f71625fd154ba59bc35d4c1abf4e0684064fc0835a4d385e5c68db8d344566a. 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/QZFYX2383765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41bc51814ebf780faac0842568a8c31ec983c369cb400eb0b20f2223238884c1. 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/QZFYX2383766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0ebe03fbcd04ad66dc95b8b8e8a74a23d70a39a5e4c18a5c042be4b71db876. 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/QZFYX2383767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4b1dc3d1a80675f2c32df7635db20f4175d6b62daf1d7c6eedacc924d319e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZFYX2383768.
Malare, You Are the Reason - Extended Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10115d71889fd7a85fdffdb6b8203689669e8350961a496af5cbc452653088e0. 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/QZFYY2387521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e12c4ebac47d4d3e9fc309b50190869ea8f86217e0f1e4f9c8a7369ee4fd99. 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/QZFYX2383771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d76ee16611994ae48217122c8b7cc201f6dad4921c5a2cf6cd5469706a8885. 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/QZDA52356831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x372f33ba4773f6f5579d2adb120654742b23e24bf94276f5792419cedb2f3d89. 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/QZRP42337921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c5667f7f2a05badb49b50db6099c7f0402ecb6c7a079e9bb16279a549dcabf. 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/QZZ7K2431181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db2d1efaa1420aae85fe95da77680b7efb19aa7e4b379d461ece3cc4b04d0be. 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/QZZ7K2431182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303de7ec60deb8308c155bdd82854100ead63182e17ec412db3f64af59c2985d. 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/QZZ7K2431184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf20da2ba31d1e5ed6d4fee3c7ea1ae0e6d8d5d3d2275ed5dcbb5ada66387e7. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZZ7K2431185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc85567c09d9c6cc412735b35a0442e621b961da75b0ffc9e77c676315d19f3. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZES62443895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22647d46c2da4d4e19dd4c85254a6d54420804d63d54675adbd3995bef81a5e9. 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/QZZ7K2431186.