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 0xbe745446897aae13dec11e59cd98624a195e724a25a836edf8eeddcb58ea459d. 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/ad73644d-be1e-4488-95dd-700680d1bde4.json and https://artists.proofprofile.net/proofs/artist/ad73644d-be1e-4488-95dd-700680d1bde4.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 0x11ded7742c714bcad72f4274c44f995c1541a85144b014800bf10f5af991b35f. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZNWW2418342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe8f448aa2344630dbfc90e2e53f9e63d6fb6a17540e5108d251bf739a28cbd3. Chain 2 (Bitcoin): anchored in block 957240 (2026-07-09T00:47:38Z), 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/QZNWU2402526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c5dd0260da16b7dd2e27f5d5fed35299994b72e80daaf18c2c90d18bf68606. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZMER2445555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20886f54bf2414ccc5e18357241f33651216adda40f0373d410b09dfdc924f9. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/QZK6L2433699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0930a973e267c0e6759bf4a86a04ab3b9789956d16e072e8a955a8af09d69c. 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/QZHNB2449885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1af8f2f306aa4dfd0c7569aefa8d06975ca7766086c42f9da54eb40edd0c9388. 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/QZES62434962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a0c52314e7670328279b2a23c841adba100f58758a3a3131fd1d50e3ebb9af. 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/QZES62431302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a74c3b034b2e722555b668b3ab574f5d9cd9b5edd47a5e255bad256e1656d5. 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/QZES62430299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a0e2a341897cb4b434a674ebf9aec9ad017bd11766c873689427cb41af9cda6. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/QZDA52415921.
關於大魔王轉生於HOOD並改名為力高的這回事
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa9c3c5a1a5021a11a976d1f2f411cc2a1342147543cbb782f44df5d6e34192. 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/QZDA52415008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe010e7f62a43bd4e1d86bf5fac2d47d54c784d38e87c01963f3fbb16bc748439. Chain 2 (Bitcoin): anchored in block 960384 (2026-07-31T09:54:03Z), 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/QZFZ62485189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744cf6c8147e4bef6ab0ef61fb0e587cdba005ac3e64851c8da4a25f1a6926f8. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTBA2305091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33acb96430931731fde3e03e34327d2f079ace0f0ac68a709482f12cac7c69e2. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/QZTB52341106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b47ff80dbb23bdcd2af79542a8a248d8efb2d244a1a1a269f98eb087c2c4c83. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/QZTB32393594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9579e23da0bfd604b2e7a7218aa8fcd225fca442f100f4effd5b050074421b0a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/QZTB42306872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41075989fe77a1e359c960df1ff4ab62c09dbacfde38062fb355091cad1e8c7. 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/QZTB52349139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeab594ce0ac03935c663831049506ac6e9f22d2b0e06da4a99ef97f2b86a7047. 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/QZNWW2375938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8af50bf9b3c52cc90e554dd6548ff0d5c35dff8984a962ad6223466306d5e2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZHN82373398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8266e1e04e78ee9a2a7a1ade7812efc33caa5117d68f9a5f0602e64c7abfdfa2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZTAZ2251107.
其實都過咗咁耐究竟可摸耳放過我
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64aec4ab19cfe5a3e69121340c7d20efbcbf9ae1e6e12f71d69004afa7eaf4f0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZTAY2296157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d80d8352314c84eb9c033018f91b5ae6b952c88d79c662864d9db14291d033. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZK6J2255839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bedbf4a14bfb8f2fb9d45f5a2f93f30d72fe36188626080a75546c048622783. 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/QZK6J2256231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x035b443e02888abc0e122d1777f65590fe400ddc776edba0d7c224adc491c028. 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/QZK6L2259379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ab015cc345d54f4a493ca40232b80488a4b9bd3228eeae62db7ac34dfbce2b0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZFYY2276689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326baa7b8ce7ee3d49dc87c72606fdd98597e2bcb2ab05c0d678d19545183f03. 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/QZNWU2162999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f01cc2fdeab16a5817cd4e0dbbc97a317e2c9e24197ccfe0fe4dec620b8c37. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZK6L2116489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327c17faabeb57e9b295c41f1f1816358994d4eb2cf48912b867cf1affd5d49e. 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/QZNWW2119405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f1202e49f4c8217bd4f47819cace58e37454518da52b478f4c1d451a1ddd0a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZFYX2163958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17b8428523741b913a671bb597a019eca2dce24fe28a50daf99ba2047637cdad. 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/QZNWU2042985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc3cf135ae87f99f2a892947c1e0d951950737751a7917a960a6bc77c97f5120. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/QZNWU2050941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23761c67a65486990ca26ac5b284c99c79cb3feb93ba8d11fe2b48c9d0d135e. 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/QZDA62055106.