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 0x8a10f69f354b3a6b0743709d639b9a9a06d35193a9cf8a9fb0836e495b43ab10. 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/e53b6fe6-c0e1-4176-8517-2cb280576a7e.json and https://artists.proofprofile.net/proofs/artist/e53b6fe6-c0e1-4176-8517-2cb280576a7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fucking Awesome (Prod. by Baby Boo & Nielyoung)
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 0x05636faecbe134d662abf9b3307001c563b9cfed9844d3d8fdb448de67bd3e65. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEYW82305383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05636faecbe134d662abf9b3307001c563b9cfed9844d3d8fdb448de67bd3e65. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/DEYW82305383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88ff11bdff4fbf31cf23d1c29ad9f58540c92a55f8c29db7bb01eeb929106971. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DEYW82305757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd53a1f7c307b696c4432a9a3555c181caab13f44f2c68c1306ad8678474f4a28. 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/DEYW82305759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b51feb95b578a7a1e1bee4748adacdd8a47ded6d2c9eecc3d39260e160b99df. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/DEYW82305760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4487107fd0bf383673563c765aa5b79e200ec4fa434f53f00542177594cee9d. 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/DEYW82309300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf01a4300eb167f698ec665f30acf90714f30b5e069352773ff23677a07ce1303. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/DEYW82311652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a419bb715ca66e710add6bda5e5a611761e6d07c0828ae1f480877beec3c336. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/DEYW82400804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3838030ee1461b80ed3d39a727a7b50f0fa17ca65a849f560efe943e1189422. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEYW82402880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fa29c2134b7dcf332550ef1dfef4168fc9e1c5cd64c06fb9b661a70a53e0c12. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/RUAGW2400212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd1daca833704120e38a86984273ed7f4c20a4d5671d4cf835f75509222bb7e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T10:04:40Z), 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/RUAGW2400213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa9eec3104479d050c34639df061784b940ca61f170a0cbf3e3d323af4509198. 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/RUAGW2400214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe02f371e4c6c9257e28dd3eb4521db89b4ffb80fffdedbd07068449b75070646. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/RUAGW2400215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517faa59b448ab4d2a75ffdf7d4c08d260c11a74447cd793fde2c86851bb0992. Chain 2 (Bitcoin): anchored in block 959018 (2026-07-21T14:12:28Z), 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/RUAGW2400216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc80151ad241b495195dd5a170d6226193d4f85a1f46497ea2977da6c19b5fc8. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/RUAGW2400217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd733878314e0bb81529ac7713a72561e95684c4755ff3bdccd6353b28291495. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/RUAGW2400219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81c98b5282e20231b8be5b873cc68bc91628de792c441be7a2d4e9254d0516b2. 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/RUAGW2400220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb54300e5deee5979d3a7a26f7b9bfb122f3aedc30f530409c53e0be029cde2. 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/DEYW82404262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067c8d8267a38c286856a7d97f46724eff1b2f24b67b41857116cd12874d5c88. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/RUAGW2400221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e4ba5452c45ef5444d1483b4e1f76af611443b90e57e5d32a054d7a34e50561. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/RUAGW2400379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9426cd13e0d32beccbc0557c81ed0ecb60fc37401ea9c1daa6d33ec7ad5c1445. 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/RUAGW2400380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1ca6faabf2c386c47e84e1e8e7433e1b63da4c51cc4420028fe78c62283c61. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUAGW2400381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92f21d654fa6998ce373d0a9b09ae08541ab846dfbc14a744fa1747889371ae. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/RUAGW2400382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fed5419abf33f147a832990b0ee3210d551575ec1528f78bb695d8ef7ac303f. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/RUAGW2400210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8d75600e4c657c1dccabb7f7953a127292a3a73318aed8ee31b81fcabf1641. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/RUAGW2400211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc346adcae34f1f517d50e5112a1e7336d47ab6b10b20287a3614526a645e44a8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/RUAGW2400218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbee0fbe6958c3c51d1f0340f32f374e819eb5cd842015e4031fed5a8960ac5. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/DEYW82409868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda19b9f45752996d45af2eff99d0829d5bd99800c6c9933f447f4d097c06268. 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/DEYW82412421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2110a599b1c279ed29e6103d8b08c6dcd0bca28bdb351f45118e0ed39244dcd. 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/DEYW82414212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f872d50b6ca0ee1c6ddeb7e5692be36414d5ba6e17282b852f2aebe20027a0a. 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/DEYW82414215.