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 0xfeb99f314a9f528e5ebeafa75feb9294150f939c7b9aa9394e97a810570a624e. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3561481d-a1d6-4956-9b14-1349b057014d.json and https://artists.proofprofile.net/proofs/artist/3561481d-a1d6-4956-9b14-1349b057014d.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 0x11747f0838a51dfdd0d30fe6315fb330bee4e1a646a2c6170af58a491c8f7a98. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEAMA7641050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c34e6369819a5051c892c1d2da4d26e0685370ec005ef9018e5106e8e1b7b2. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/SEAMA7641070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f137cbfb38e6d6f3126e97791cdaae9be0f47f5eebca56b8b6ca5af5f21f8e6. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:54:56Z), 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/SEAMA7641100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2c7fa3beb053cf809d83105dfb27f9629a11d56976679f1ca757e1c838149c. 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/SEAMA7751120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa79130ebf298ad318779971e6a6253828ecc8a9e0978d62a4fd1e7061617a923. 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/SEAMA2200049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3fd78b0c3f8052f17aec0e0b700a03151a6e93ca1fd95d0e3b6b653c7a61608. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEAMA7751130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12ba411c114c95bfc8c5f64f3e0e02a305504251db587bb578b4f05f18d343. 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/SEBHA9210020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12ba411c114c95bfc8c5f64f3e0e02a305504251db587bb578b4f05f18d343. 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/SEBHA9210020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74cb4d3f58ac1adddf985c6632b97ea0440a1cc305f773f1271c1ae8cd39b7a9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEBHA9210090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4986ed9c684614f6d8f39617826ac3883e40b835c6947ca461528d5ebafef785. 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/SEBHA9210100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d52b8f1e0c3eb92f360a762c97b4d1412a19282dee28de4b295e7fb7a7922f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/SEAMA7640010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ce05f6e71248cd67febdc7a8be6b798451e5ca566b48ecfaeceea7ce513d62. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEAMA7641010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x489f1140f3378c3535ed85de0cfc0ad428708dd33e4a8966b701264e6dcf195e. 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/SEAMA7640011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954c0a2f97acf88d7b197c7df5ebe9b5c8e4036752e81bde53c95616096845fd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEAMA7640060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ce05f6e71248cd67febdc7a8be6b798451e5ca566b48ecfaeceea7ce513d62. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/SEAMA7641010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e630d39c49619a046eced525db6028de018ffd8b03c595a5d9f59b47422a6a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEAMA7641060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2c7fa3beb053cf809d83105dfb27f9629a11d56976679f1ca757e1c838149c. 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/SEAMA7751120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f12ba411c114c95bfc8c5f64f3e0e02a305504251db587bb578b4f05f18d343. 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/SEBHA9210020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d52b8f1e0c3eb92f360a762c97b4d1412a19282dee28de4b295e7fb7a7922f. 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/SEAMA7640010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63ce05f6e71248cd67febdc7a8be6b798451e5ca566b48ecfaeceea7ce513d62. 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/SEAMA7641010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737992a5ed0558b6c14b15d05f40f116a4433be127b2ef631a650a1e3ded2c7d. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:06:43Z), 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/SEWIW1900101.
Love Is Great and Butterflies Are Angels
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f1db59800310018f0f2b21bf1794f5b54d52baff38d704a12c98e544ab7156. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/SEWIW2100601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec422fb2f9721ec3c838b08d0838e9a77b303949da7dc8dfd718292e525afd00. 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/SEWIW2100401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14808f740d83f8787c95022e3742df9b9b47a9638ba7198706700901fbd4410. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEWIW2100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd457f2dbfbfc1337c9657a2b9cadd1f899ca1fa91326a7ca5e279196fb017861. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/SEWIW2400601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cf19b3a7a8cb69ff6105b9ad443e6c33c2c8d391cd114fae5c4b737709162ac. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/SEWIW2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab26030fbad3ef3b0af6f2c4ab1b57907f2a695799d148804ee90847c101fa14. 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/SEWEE2219501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d52b8f1e0c3eb92f360a762c97b4d1412a19282dee28de4b295e7fb7a7922f. 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/SEAMA7640010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d52b8f1e0c3eb92f360a762c97b4d1412a19282dee28de4b295e7fb7a7922f. 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/SEAMA7640010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d52b8f1e0c3eb92f360a762c97b4d1412a19282dee28de4b295e7fb7a7922f. 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/SEAMA7640010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d52b8f1e0c3eb92f360a762c97b4d1412a19282dee28de4b295e7fb7a7922f. 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/SEAMA7640010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d52b8f1e0c3eb92f360a762c97b4d1412a19282dee28de4b295e7fb7a7922f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SEAMA7640010.