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 0x70d70c17fb3ae96ebc54912ed0eb00207c0a15261d627c338559b38e67f05432. 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/255d692b-c70f-448c-a91d-797da49e1231.json and https://artists.proofprofile.net/proofs/artist/255d692b-c70f-448c-a91d-797da49e1231.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 0x7e5d8f24074a679b65847b6ab63f578ae739f1ed6950991b0cf1cf74025dda75. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GX38U2566105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1966b353f42e3f68a0f520b833e5435beb744ae331f9c4deb6b0adc4aa87f587. 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/VGA010813411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26c3fa88cc461479ad70793c5f343b5f175a92bce2cd14d17856a1fb404aa6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/VGA010813412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8688034063c8c18dc0fecc852383da3206f66b9bbe85dbc8d55fefd20eb3d077. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/VGA010813414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916431e49df3cb12649274c8dc45e75d443bcc0f62089ca6a5f037c06d6d6f7d. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/VGA010813416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702809cdaafb0635294fad407c456dc910492951fa076eb3dfe641787d212140. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/VGA010813419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac388d27f474809c12ed710e248406228a96e208428405ac4b391f55eba84bb1. 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/VGA010813550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28c0e740cc3f624fba6327d03b714ff758f5f5dc30de107f4a6baeb3bd48349e. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:52:45Z), 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/VGA010813552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac51577987e94ca70dc9e59d0dad244191f10d92b9c83e1997a11133ce4f8293. Chain 2 (Bitcoin): anchored in block 957703 (2026-07-12T12:26:40Z), 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/VGA010813553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x913dfeef41b11a0e46a1a1db6100b6abd751987155fb9290303ea88e40a0458d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/VGA010813554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb117fa785fd6365c56c29f62aace92a7b338415cdd25e177b39c6f12f0376337. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:56Z), 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/VGA010813556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f0785ae36dfbcc38d447af350a91f3d1e16af41ebdcc2f3a2ede89c228aee8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/VGA010813557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c46860e81410a42f40ee9556a39b3978e0105cacbbe969efa2d2224fddc29fc. 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/LBA081106454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0dce1ab1c788a3c1ebf230beb3a6ab37c8457f841c4d72e8d8d81a5aeb18dc. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/AEA141100281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fafa7644812600c3d4f57c71449cdd54242f82865d7a3c73e7224ff6c8939c. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:26:52Z), 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/ING212489174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e115b075e885bb76d020357da9b6c6202356f109ea6d623d9c81538dfd77e7a. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ING212490222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0de7540d1e8c90081a5e1430d967f3588c21ce806c402558431449197ba286fb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ING212490728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7f62efe249e4dc3070e4e02b89348924fa025f9d4135d88600a9f12e39d2d35. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/ING212490731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c9104018d39fde5a1bec5443a8b7098a74fb4ceb94294f06204f418021c86f3. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ING212489701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b45247f032c0522246faa31bdfc32b963509a9777fb68e1e97d9ed4dbbeaf5. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ING212490712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e30b59cba31060d4a9c019928dcad73f5ff438233935dd3098a9ee7c3ab032. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/ING212490718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e83b2d7a31e3d54a0b263be905fef2bed9bea7717f864c3ef473262d50aa2cc. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:09:32Z), 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/ING212490430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf3a8bcb8f35f4ea1177d3d7f3eacb432efc791e04f55171160f33b58ab6b7aa. 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/ING212490434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc77f358f042044d2488e59c5606bae6bfc75bf26535eff87d0c560518093307f. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:42:40Z), 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/GXBDS2482729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c859c4936d6aacdb04716f7a64364185b8d7f567a430e543fd114f60858056d. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/GXBDS2431468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5d93c2b60115900177c1aff96a247252d3d0cd60391a77d8655dcac93313b7a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GXBDS2470965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57aaaab7b036010c3232bba2469f096cf37908947dc57ce0d3c12e5ad95990ab. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GXESV2493533.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a73b3639a51205100d399bbc9441134fa450ad412c1597f61728f7e776297c1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/GXESV2466472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b6d13240578c595579c39016737d01f42b5b708eb3a036f4e08383a6163029. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:20:45Z), 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/GXFHP2433731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5018da015d984064878a29d288fe6c135fd3935b3145ee17190a952ea72c462. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GX8LE2578652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c233df3c06002a5a6d5108a51921a0cbfd81c44ab534334e2a0f221960060d. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:53:59Z), 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/GX8LE2543630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc0ab2f58a60951440ff65d6cbc27b5a8fee154c8cf1ee6f0edf0904cfe1e44. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GX8LE2587954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72435e646580f9264ec5b8915c2bc6a8b53ab33d0ebfbf72193455fa80268fa0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GX8LE2540103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c3e8bc26dcfce16f6736ced4a1237ea7b35e39f209534d5926e789b31d13c7. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:15:58Z), 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/GX8LE2526026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0935bf8d564a2229e4ac2662916f20abd94f249f67a919f83a92b08365709cab. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GX8LE2558889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ec6904056448442f22582ed3adf6fe934e863727d6ac1413cb51ce254397f9. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GX8LE2598396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7118a608da327bf58fbccc74624638b1a8a28c958323b9e92728e678fc88e34. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/GX38U2533276.