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 0xf8ba4da6ef2cb34939a67fd290490c62ac46941ad1152de0174610e460bfe4a1. 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/b96d9369-e10f-497a-9d64-e353863a3354.json and https://artists.proofprofile.net/proofs/artist/b96d9369-e10f-497a-9d64-e353863a3354.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Don't Like To Think A Lot About These Kinds Of Things
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 0xcc42a35e2b0d5f248cebdc8bb749b84393f06eb0a862f12c65337a28ab67999e. 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/QZWFQ2376998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd1cd6bca22074e9a64ac554d2dc0e87c9f4897143316ca6a5f197228f18812. 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/QZWFL2320013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd0dc1fddd5b9de77126cc64aba50bd9bcd77aee30309e67f4f24c562c9864ce. 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/QZWFQ2376999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eaa02b0416e1b2f08344d76a3624ec49d8b24dd5dece34243ab634110e30776. 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/QZWFQ2377000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e80c3e2eb719ab3622f7a817fdea0f4b5133b74d672252acb36012f0ce41993. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:23:22Z), 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/QZWFQ2377001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef498444875c85f6a9a50e82a1d0507f9f493cd89e1022d69a83f1f484fed78. 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/QZWFQ2377002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2c00813521fa66ce58395f8ff1861b85571a8e66df704ff99f5ba923f47d383. 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/QZWFQ2377004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4561e06fa384b764a5ecdb7e95e104ce03158e47cbd7b8ec90f9518ea7cdef62. 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/QZES92251556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3451bac86bebb7c48642b908831c164c55caafa739abe22396b5d96855da0d43. 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/QZMEP2192705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96bd2a3675411ce23d0a8fe4e8b737132ef342e6e87a6b714f74311b1fd3162. 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/QZES92250793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3b186970fe73885cec39a9bccc4b56477085fd6227f5a4ede6e48d074639839. 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/QZES92251560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575440f321daa5d67cdd105783b371ea9397b8c758d4a340e9e42ad2c40e2d4e. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/QZTAY2310670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb004190ce19a3ce028501932658b50cb672331abc7def86bc227424fa8d8811f. 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/QZTAY2310671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6eaa9d3ca5a05c6d2a384d6a39d2633c4d0f46f1f2d68298208d7f42d50c22. 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/QZTAY2310673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd790556be67d6202c95dc00df79dccd5650a6c2761aefd40fb35155eed448d3. 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/QZTAT2376451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042c2ed74babab3b8f3fec595478ac598cf14e4a2c2c16ba6b9ad26d68c684a5. 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/QZTAY2310674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f9f7d1c9ab76b83ba077273b0f5e0fb543107969b62d70aa0426383279c3a1. 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/QZFZ22102687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a39a076a92180394bf20f211259a90d488ce4f3859f1faf62983f95468eb0ae. 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/QZMEM2119740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa38f5c59c6af6734ac2b6ec502300e3242b06c63e288a271ba41a6bb8d367b9. 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/QZMEM2119741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82d395485c4b90e5bd481b8a1a47baff4818bfc180cb7df702dfdd40c77e145. 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/QZK6N2076959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea25e9b0ad49ca9b7bcded9a795999229b173820c1f40388feffd568f009f670. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZMEM2119743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd024ace4a19eebf475b1eba9f4146d87142881e698a28014213809cef59544. 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/QZES52165013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fdba951c411af75dc427e56aa6e6b8ad42e48c13bdf167384bd81bb9c9664b. 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/QZMEM2119744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6afd97f1e3310e5819c90106aaa5fb112a75eb01edcc44ff08ecf3fe6080fcdb. 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/QZMEM2119745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4410392a9d8aea763419a60226dd5716549d607448243d0afb7ba09ed5d52d0. 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/QZMEM2119746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f1c52262f06916420f893b02a96dd8a4f3f4ede9bf530158538eb731c67bb6. 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/TCAEK1901141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4106776d612cabc7d1f16f829a0336d1c41e317860a99cfaab45b068a6002d6. 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/TCAEK1901145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dcc4bd4421765133a5e1d167530f9008d03eb9111cdac0e0037eadd39f1c7b6. 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/TCAEH1968818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5402e4271df7bafc1124356753f18bbcb344ffee4b29ef02c257a54ef2dead0e. 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/QZK6M2466900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd024ace4a19eebf475b1eba9f4146d87142881e698a28014213809cef59544. 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/QZES52165013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50f9f7d1c9ab76b83ba077273b0f5e0fb543107969b62d70aa0426383279c3a1. 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/QZFZ22102687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d0a56524b3aa63620802c8a9aec35fe690dc5bc0aec39ab573dd9f9aa785ee. 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/QZMEM2096864.