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 0x961c81c6568fde55d44f1cda224a71375df468901ab57db2abd8e46a667e0056. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b10752a8-89ca-4635-8215-0bad89f4c6ac.json and https://artists.proofprofile.net/proofs/artist/b10752a8-89ca-4635-8215-0bad89f4c6ac.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 0x6602273b1b052c5b233e3b2db5337874197c907752b5cfe70ccc2ebf75616f9a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL7112001093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72999838e6f3ed6eb4e2f1a5464ca6444c481486d0d33de8be53f4a6959d2e43. 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/IL7112001176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fe2379a435aa7111e58a8d72e8d2fb0c1806164736e61d1b61fa329a3926bc2. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/IL7112001290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443d54393d8c73d9208ff11cc2e5287dc5b2237177a0b2304bb2b51d0df2c12a. 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/IL7112001131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c73894b9378a8dd40061ad12abda74376b92766ea6bea7ac51aa96fd5487537. 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/IL7112001291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd20e4d420a7be4426a8d571c44b1469bb23655ca17c612d6e2205031d5432c. 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/IL7112001098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a5697f0044f3cc073b8fa5053b7e6c97c2e784d68d47a58228b89f42c97cea. 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/IL7112001092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82bf131baf847cd9d77035c6f26c65a8e75b59ebd0e56cba1132e247528230f6. 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/IL7112001153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a07914ffb6b60dd4090bcfe865ffdd4f120d815795d4a9261f85c59f19821d1. 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/IL7112001180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853e00b97e7459737093e6fb8abba5a5aff13eda6c80efb007feaac853de3d31. 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/IL7112001297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f499c31cc7eb8c62c62292cc9a9d12a299e0f0f92f3e94f64c15ade1889cf19. 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/IL6191000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bffa003d3e0982afe98bc9e58528224e614c80ad20db4e6da45c009f47682ae. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/IL1000004669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ca8f1c4cb25b6f7589c3df99063857af046b70861fd0ecfc209198e7013cc0. 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/IL1000004670.
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 0x25b1d4e88429df6bf0bdb1634e98456ace515dcb07532645590bb97695510c93. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/IL1000004680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b655184af585515cb894283f877927b1c4e797d7196e8b963c9bd10e895d1c. 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/IL6190500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ef26c846d4ccdadd4300803187f1bb54a58043ecd85b06c8aa1bda8705e56c. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/IL6190500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b8c56c9e113a2dad8e86b59c9807cbf801df54fb00db91f5bbb1388008323f. 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/IL1010004000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x020a5601eb57d06d1636d1e7aba049828d720157aefd93aaf087478932aa6297. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/IL1010003612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1d2f319f486c1406a2f164186a8f7dfe2466499e2b0e7d6d722a5ce97929bb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1010102426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ce97b2f61c62dbe9d015a64bb945197da6419d0409535298ef2be5322674c82. 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/IL1010001549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3cc7047e0fb5ca3bfc342c0924d17d495ce231941b4802bda49f74e710be939. 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/IL1010001745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5f41ae0d270c575e1ea863d3e3158db6e0facbb1bf5eda7bf7e9f4442fb6b0. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/IL1010000498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8e1ef687e53f2d7b6996a033a2afb0d58ed2957822bc95057b01a414b001b0d. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/IL1010005253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20aa0d4819bdf259a3307ecc5a1fc6563016c41240f8afb8600261d8b86880c7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1010003032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26c638feca0c97997e97ced5ec3aaaa8dc9353453e09b19fcda34f55d985e3bd. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/IL1010002771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef187c4e5c2a4292b32daa3133d87dfa2e96a5ef09c8f273dddc3cf6de0f60b4. 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/IL1010005341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16973021668507bb6a42f42c270e2b719bbf76c55335ab11607ccfa7d3e50f0. 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/IL1010004151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55e778d8a02ba8d5542a142f12faae6ff7b98ccc0c8378dbaefe6b453605c57. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/IL1010004364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2744235ce82c10cb545bce8d8ea2787d8ee98e8b487a3338f19ce3a66c482955. 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/IL1010002658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881e187c73a4e8194074c143f2d4a6796daa48f84f9fe8d1778000f3244207ea. 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/IL1010005254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96b01d69accc127609baeab8e03a90df86fd0f27cf180c0d3e0e53a5a062bca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1010005843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce224464c8a659d8c909f7b4e613a44156ea561cc9c87ee294fd1b9cec11b511. 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/IL1010003938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd335c00974d14edef7ee2ddeca6758bb471db46936afc7159959ac4aebedfb9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/IL1010000427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f0399446f8d7fc219810ebc743bb7a8872eacc61a3c1ff7f609597fa3b8dbf. 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/IL1010003975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2a4bd7811018537cee09a045cbfb412b335bd2d50b83601ffdeb3d4b013e8f. 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/IL1010005316.
We Came to Light up the City - Ori Shochat Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb266199ba0a22b75aaf6fc620e0bb574beb70edc3f96bb8e091dd13a791bd4. 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/IL1380600608.