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 0x8a51fca4bcf5d0e21a7aeefb6786618fabab95bb77717f749a697ed823afdebf. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/97f171ac-a043-4a05-a906-9edc8cc357a2.json and https://artists.proofprofile.net/proofs/artist/97f171ac-a043-4a05-a906-9edc8cc357a2.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 0xf38f849932e7d3c43d36b07f7083e46b65bbe83876818ea550329ea723e8fcb2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/ES8242033701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b3aababf7a5d493aa1cd294e550800f618ed293072c35dc74f8118a9e886077. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/ES8242033702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1fc9d3d21b167c03f3a24c7c73444a27ef48eb4adbdb58ffba5834e09a68f4d. 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/ES8242033704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x401a8db56764d9d30218af04d69c5befa8ea50868e53fa9c48d3e540d4c50f2d. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ES8242033706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90105c8da15c6f0a9e1419a8a4f4a396bdd29a5d67516bbc35e277afac5ac12. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/ES8242033707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x990596b7352b8a2f83e703d00bde54a11914bca9a960f363fcfd7207db6e8089. 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/ES8241522602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f5dc1d2e6a191020b72bb8dc18a860b8a6b6cacdf78085b54ec2bac237d954. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES8241522603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88f95cf58e73e16c918998c668cd8f69aa0503b0e23caaf6d4cc8f3df8f2d4f. 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/ES8241522604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46ab4a2dec96936c90202e7ab4e6b134cc271c5edd7f8485e5134aa9588ca4c. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/ES8241522605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5244076984a5867f1bc68269d4102e5a74fe1108f3cfcaf142073a78270a5c3. 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/ES8241522606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda2beb5a55f48693411d5642b37c82459a965c38762e4f0737d95278f8b6681. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:26:45Z), 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/ES8241522607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x623ee78ddf160925e717e9ae0a8ce9f1f3646593776e74e14d5e2caaa07ce39f. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T10:55:09Z), 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/ES8241522610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fc82146b94c784550b05d43f0f6ef0da04df040ffcffe79b920ad10d171c959. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:27Z), 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/ES8241522611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1c7f94e088b1356cca66d10776828c304d11a4f6de9790e458f960f4afcb701. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:50:38Z), 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/ES8240803603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa682185065ec000a619af0819a2d67433505eac79a0c82109dd84a459e070307. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/ES8240803604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cda94d5cac8d2eb1ad04d4890bae9cedccdd0e253de225b21e83851e8c35e0. 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/ES8240803607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333a20109fdf11a5301dc1bc9a5b1066705c8154cff9d462afdf2308658f2647. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:51Z), 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/ES8240803610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf020c52c47e33a59460c3495b4e5461a4956edfff2c62f99e2f21bba210d625. 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/ES8240803611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf196ccaeee480fe53a7fa4ddef65ddd700e95726b3dbb51b50f4e719e118829. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T21:49:01Z), 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/ES8241024702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3f9e0b5aba8c94bf1e5a0032a627f10dfb8731da41bf4b152ff5fe88416be22. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/ES8241024704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b078277f89806a83a8ec05a8d780daf7301de56a89295cb3a35c7907996e7fb. 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/ES8241024706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd951ec8f297537bd390d874f767b93af2201dabe0f31fee2457337bdebae18. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/ES8241024707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19ca64921eeab35fbb4e19e9665e7daa06ca619bd07af749960a9c8dc8eb681. 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/ES8241024708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75219c402503717e7cf7eebb425fa38d49febae9fa19f044ec53485e82ba0f5. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/ES8241024710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc015ac8d8b714cd27196b9e85827c36ca2b0307bd8be5611f274e0a3fb548e30. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:28:59Z), 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/ES8241024711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cac7ed3c52b1bf05bc84b516f081c934ef6f95ac30f139d4e364e985e226cb2. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ES8241427202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3107da2c6d084ac6b0afcc4f3ecf0291f2d33b5543c632e13b826f84e9617688. 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/ES8241427203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2480256b3d11fc23eb71d980b119b56453a093fdfc3d199744d247977c4b6b0f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/ES8241427206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6891d3d70c8d0501d00032ee43f824b555b1fca699466fadb34c716a0af6ef22. 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/ES8241427207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5979c1c90057b6201c8872ef2911fc5b4cb58ff5295d87aa85baf69dd8a26531. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T22:06:01Z), 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/ES8241427209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9afe6496cb41a40acc4543e13c263807d3e6ce2279d4ca13976f12be34ca6ee2. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ES8241427210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b54c6e9dee0eb4324472cc0c07babe06e7d6eee7dfa303b8ce7b57de62744a9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ES8241427212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ec23df3b15d73dfbffd3fb1a2d682e645bcc986ac0fd6de788084265231fca. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/ES8241625802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0045b38897b9ff8b1b7403df5adeca1c8dd9eed18df6aa541c9192e819a582af. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:20:43Z), 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/ES8241625804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d18b4f8b987e98f7ae259a9c5dbd9ae24d7b4c9ff6073bd4d3351c64a11ab6c. 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/ES8241625805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4524fa4bf4fe8d26535d7baaa650f26bab7eec7ea3670a15b329547af36ce37c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:32:56Z), 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/ES8241625806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f62c562bfce35f0a350efe634a29544e6848a84f6a2555038a5ab49956fdb4. 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/ES8241625807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f6c253fd3ce4d155f04a2c287dcc7d89baeaa4a19210ea01482863f5d160308. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/ES8241625809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6f884107d9a17a18e34288a3efc71e081e34f33dcdfb87ab0347b6d71cefde. 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/ES8241625810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a84b512f9023222ad47142b98519944c4a5c6d785779c0c21f90db61aec8c2. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:37:05Z), 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/ES8241625811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78a4f4ffc009125e19ecb8c75bba73a122729ccfaf6a78e0dd0e4a94cbfa61ae. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/ES8241625812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a9eee69cc0d3b50028fc7380485fe0d96dd261e4e6d1fc0ffe31562eb7fd93. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:58:50Z), 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/ES8241625813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x180df06ea85cf5032e0ba3d51283633cbb8d622532deaa515e2b7ebb292c2c4c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/ES8241625814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcebe3521370e0d2e121bc806e92317c20d01bdcff35ba490d5ea254eb5e5e3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:59:27Z), 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/ES8241625815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1276f01e93c5f4291dd606eaade38d9b1f78bece0ab1b7f6a038f0b294e68d8e. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES8241625816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09df34950741ad737b7dab20fed7a49197da6b7d61d622094816fb332426e41. 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/ES8241625817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea559cf0863e6179730dab968d0d649e6f43dd7e53d3054b8754627030d01b58. 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/ES8241625818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff5c0b11db76b601d17b60a7a4ebe01806100eb59074ec13e71f5f6429aeea2. 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/ES8241625819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x844c788ea92b3c280cf302a63777f9b0a9d1a521bfd19a6ce74b95a8054f4bb2. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ES8241625820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ed6d7d1226efb2d515fbbece45f9640d7229bc1e4ceb2e20e054f90971220e. 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/ES8241625821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f3aff807b462811666fb587645e3f0b637eb95030ab45cdb15dc53bd50d7683. 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/ES8241625822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d76c09754da4cb042a7b26e7d0f1aa1fdcdcf38992b44e5efbf9699624f37b1. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:34:27Z), 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/ES8241625823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c85ea2d36bb3114083f37b7b6d1d1aebc8f3dbb28bbdd37b008bf3af024f57. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/ES8241625824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8073d7e402ae85e4e668481ebdc235cf015530714ff83536d91c8cf35a08a72e. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T20:13:58Z), 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/ES8241625825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2c06f9a65dc5b706ea63882e030c2d81c6bb6cd832a3f7e5e864287cd315c1. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T14:04:09Z), 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/ES8241625826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8658b5d8422f35e66d28d08cada757a9c2620fa65256e2919da83c3dbff1f624. 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/ES8242032901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b896accc6930bf8bda9a69c985cd8111e49f22f8bd1a577a21f443b66b2889e. 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/ES8242032902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262bd6d28f3558a9f47c1e62049d4cb4c842e6c4aedb4c7c73e6fe10b7e61026. 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/ES8242032903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8223cb72d804f88192d2f56863ead8d9b577eebf5dd46166ca8642d1aa042bc4. 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/ES8242032904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd680d6d49398ac1f357931d52fb99721d32fd2bdb8ceddeac57fd55a91fa50a5. 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/ES8242032905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2e6631f1302f20ec976eca44516c6cbe591df1fd7e8e96e449031ad8a15c446. 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/ES8242032906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d9731754f23088519f43a9b0a281eda848c23f6264a7024b30041e0b64fbdcf. 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/ES8242032907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbed70538befdacbabbd1cb7a65865722a438716868692efcb6c0d65bc115604. 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/ES8242032908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cdbfe1eeeb9e93eadfcccf42c1a11254f26921d18b7bc1463a151879152f12d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES8242032910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437fa7630093d934b0e3815ffd854255247a711dc3604db666c1726dbe0aacb2. 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/ES8242032912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8adc164f1ae465081f8d157dafd32b6f479edb36a648980b0773e7590381ad9. 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/ES8242032913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x108c42fbe10df3bf95465be66116d38fe31d88c62c278e45abd88c71d0dae11c. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/ES8242032916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6ac3f987fa019e74402524897b802a7a760e8c4406ef8ec8a3c12097286852. 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/ES8242032919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb35a67f08646404d9d6eea2eb12bc069acc03a83299a1d0fd4da00ba85c684ec. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/ES8242032920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15cf5ee8538799c487e9a24e8a33339bdaa73247f5d5a374440713d3d806613e. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/ES8242032909.
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 0xdb33d71b39180fa84f09f71951951311a4d83134aa7e20981703abb8ff88766c. 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/ES8242032911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd453b1df43a4c7c02bda27d46b1f1939e7399d55bba8d9fcbe75ceebb5faaa9b. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/ES8242032914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98948e9a7e200dec8a4ccacebc8e0f5c858c362ff475f15cf9cf0ab1d485cd2f. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ES8242032915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a6209776eeff871ccb52fe12f87cf159ced814bd95b0404d2e800816c79803. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/ES8242032917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43e64924abccb35a26e0605ffb3df374ed66f324393ee515df56710a15e9760d. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ES8242032918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8de8ef17835dccaa7c8ad00c5b3c1a7600282980b875cfc3a8acf930cd35e4ae. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:19:21Z), 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/ES8242341001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156df30af82c6ce6918c4c893f40d5ca898bcb5fb440cef381746d7d42dacdb8. 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/ES8242341002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b8de8528514203f7cbb8aa0b6e2808f50dcba9738215d710be0253d17e21f6a. 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/ES8242341004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e747ac295266af4f02016fdd71abd26e536e379e263c86a10a3fb1e8ca16f28. 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/ES5951605371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fae63dfbaedbdebd5169ebdff469c505d1d59a4f9a38ba3b5f1650d95d8a68a. 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/SEYOK1720859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92ceb2992a8d0017fb17592b5140d740a0f7e1b76a897141c1196e40dc3011b0. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/ESA011100609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2ccf07b27e6da8f8cc7145a12e4390ca2a41698eac3dd579b01a06f3b13b30. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/ES8241427204.