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 0x18f1e7c083e71994f1298e8da5b0e007698c1eec627cd1a1f061fd9928a59699. 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/518b1e6e-960a-4bea-a32e-af565ded0ef1.json and https://artists.proofprofile.net/proofs/artist/518b1e6e-960a-4bea-a32e-af565ded0ef1.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 0xa11fb8548b53c3ec7cc02c9188e64f53325e01fe733f5d5c1ba4e85a937403f0. 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/UKXN22248909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4847c4c2a2d03b200c4390524e5b7d9ce200b8ab98ea16db5f802372dfb79c2c. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/GX3Q92391019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d22efec06c741dabd9c234e5d07ad01b069c24b8094f42c4bd2d0af7aec5e3. 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/GX3Q92391021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d15a39c5387175e1d4a593ef46d1bbaa33921863d19d0e731ceb26ee9a86466. 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/GX3Q92391025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c42eab84425eace11a5ca73aecde11e2f72a601a7f909c60d3f914e1b5ebefe. 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/GX3Q92391027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27328452472c1a1877d2d960a21c176ace2bebe93b2240fe310db3647b752466. 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/GX3Q92168803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07400ca4ee14deebbae4aab3314ef33e24a665a649d51f0f253b91864d1793bb. 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/GX3Q92168804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e0dd22a23cfb43105f4fea218b325c0a0b910e379ebe2927f5aff7cfa799cc. 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/GX3Q92168805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5780766ff47fb1eb6a20a44886f75db284fc7b56e15d02488d2dc975e988a80. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GX3Q92168806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c87b9153e288756be3c78a32d5d08f3172a8dfaa0ef45efd7905cae6c3858cc. 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/GX3Q92168807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac5d1f186010384e36064937112ce83b6f796b78b0c9563f41c67cdc2c21f05. 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/GX3Q92168808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1184a05be35cb4fc57454e0b40110a28781cc6e4a554d5d2e2a150506d28401e. 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/GX3Q92168809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6d5b3fd592c02679cc25591c4d010cc0c12c43daac22fe6a54767b0b5a34a8. 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/GX3Q92168810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1342edee2ba720fd5ac15bee3406fd91b84453e3b9530f8685a0797219eebc7e. 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/UKXN22076886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5479c38787058203bab0a2b5ef60c7ffae697fae98021eb570e48120f86ddf6. 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/UKXN22076887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbceb7e9f8dfa88e1f711fa185698f8c59d368ad8e4be2c3c9a261fe4c3652abb. 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/UKXN22076888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcd20c4e2663a3f1f3a47772fb4abfc5c7d620fd18a34ecebde9204e7e7c3da2. 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/UKXN22076889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49b6185031495cf459f409f75909561e6860a38eca5741dc52bb5f9f817303ed. 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/UKXN22076890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2e0283114daa9eac01e7be068853f4db833063f3898df87312e0e480dc870d. 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/UKXN22076891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c262b1fc37dc8c9c47b48fb6c8a66dbdfc0c2b3f83023dd1822b988225eaab. 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/UKXN22076893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87d8f1af8ac53d733c4008b233654eb56de9888ebdec34479c3dfb9a04aec349. 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/UKXN22076894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c63c29d184ace7e11c90cf20dcacdd9484fe1e969e6c32f042f80ec16a858cc. 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/UKXN22076895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3509eef101abb91fa744fad345785fdafd80f0739955efdfab24ac9bf12cde. 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/UKXN22076896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287bea21c7673fdf23e75b9ba628aec6c2a7beeb692aed2ef522eebf1ef3c7b2. 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/UKXN22014832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4206286cf2ca5336d3c0a8f61fc922be76214f718a4a3cf93af82afb82dee9. 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/UKXN22014833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x670d375891544d245aa30c2a599c74027a5a81a331668b91e3f6a66b62a3a6cd. 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/UKXN22014835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de564cb67a95f15872ff2d7eef913f9035c5fc92c6e545eb9d59fc3391b5a3d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UKXN22014836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9122e20f81f623763fcfec5347160258be94dbf1d657e2748e1140a8a091c594. 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/UKXN22014822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b4732e1ce98eeb7857a33d45a10e6aaed16fd80b487bd2d632c22d8106d807. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UKXN22014827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b5e8ec0302f94138498329800e739708b9bd68fc148f6569aa948c8b3a476f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/UKXN22014829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfff4781790f347ebb09c297dfd920c6eef22b9333a0b8870227700340de072. 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/UKXN22014830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x301d59d5d7dd25a1aa0b9e580954ec705764f8afbe0252c45d9a537b9d2fd383. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/UKXN22014838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10538d3605db97c8677c216ed581725e1ac15deb394dda0cb669d6f70ad701c0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:30:04Z), 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/GBMA22480532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfb800393c6babc36e459ede15a986641c7a518a837d7f6c8c72f1f73bc238f. 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/GBMA22401496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfb800393c6babc36e459ede15a986641c7a518a837d7f6c8c72f1f73bc238f. 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/GBMA22401496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b8847e59c3f490d7df0d775c39f148f2d44c9e152a22faa1bb65e782e33d69. 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/GBMA22332225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31491dbb6ca488d2ba6b760ed375f1384000b16f5111b08a160891f886cf7104. 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/UKXN22371477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa11fb8548b53c3ec7cc02c9188e64f53325e01fe733f5d5c1ba4e85a937403f0. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UKXN22248909.
Sky World / Moony Moon (Extended Version)