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 0x5aaf4a516ac799bc262d18fd9006e81c42d1276a8e08fe52e1cc20b3b47a6848. 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/7da5d3d7-2a31-4111-b7f8-15d0f93e053e.json and https://artists.proofprofile.net/proofs/artist/7da5d3d7-2a31-4111-b7f8-15d0f93e053e.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 0x7f5068f455027dd59c3080b6005a7ac1699683269204e08a64e4fcd6f967c4e5. 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/QZK6J2086419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496ab92090bf20823116407f6fa41d7aaaf7726b4ffaa821ee0c789eb5289d62. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:44:54Z), 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/QZK6J2086420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a6c0e0dbd7f5f6c1360f9bab2f5eee4b5e1669f109383856029d2bf735d22f. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:35:14Z), 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/QZK6P1943951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4580253d26c8ef2c04e010a4f6bb4bc355bdea42c017ce9ea24bab75d02afe78. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZK6J2086422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611a15f3ec259e826f85c3cec6472bcf61f9ca58ad78f741e53e75add94f0b32. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:46:30Z), 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/QZTAS2151679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19894e4e65eed9eac96079c31916db68d84a466335e3dd3a64a734463671fed2. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:58:26Z), 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/QZK6Q2205522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f535d8d6763be1dc19eaa69efe699b1eb82ab8fd3c64c42f98a6ad74de35c7f. 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/QZNWX2217818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4894dfe7d2e62e3cbd9a622b1f289c468e0463923f761fb09edcb944d49f99. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZES52280538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c480600ccaac8b707d33739297d4af8f0da5fcda24f7b741e16d87d59b3a6ee. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/QZNWX2217819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1be1f809249f318cd1636f24d2888e295f7ce8002c96679b27cab2d6932ee753. 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/QZNWX2217820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea1db7355a8b25f81b642c0dc23f8972bc7aeb33b6e8cd79e1721da456457ed9. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/QZNWX2217821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e451eac02fc0946f59728ec27e4b46e2b695bd93fe8175f0884bf40e46aa46d. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QZDA72370001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5cf3a698c805d3d63220fd501f4ed18fcec438da08b39f3742f1eb04728922f. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:53:24Z), 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/QZFYZ2460063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2f7913f0c1019b62967cc049fba12512486d8ac37dbdd2af290c5a3fbf70d1. 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/QZES62428820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c67501c958c8153670a77606abf1d4d6114632efae8bda487c1d31932d3b9c4. 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/QZK6M2458790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f20d91ced75d69a8cd24fadccaa8cb79e3c6c694ad65ad4ad7b4ead45ec21f. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/QZK6M2458792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13338b641fd3654ccc41d88909c49e49c88c2bd117c05a313d4d5749090a9d21. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZK6M2458795.
A Christmas Fucking Miracle (15 Covers and 15 Originals by the New Wave of Nu Metal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c43dea90c745ec59f1775aaa7f042ece5f267745ab884a0d92ff345f680d7b2. 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/TCAJE2528849.