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 0x454fd4497d4589c72ae12b8b3bf8d1cdd9d889e7105b0db530f6c60682a28a68. 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/9bbafa24-d6f7-477d-8f88-6544aee1882e.json and https://artists.proofprofile.net/proofs/artist/9bbafa24-d6f7-477d-8f88-6544aee1882e.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 0xb6fbe8452103330d87b79b0c96b2f228dccc82d8019391f29df4244cfa32fe9d. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/AUGBT2419282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d4acf312c007072c6a10cdb264b8771460e59fc6d89a5d81f6770a517f219cb. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/AUGBT2419283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x234e56a1c301dadd8d29616c449aba915205d720bd71440416b067711c47ea81. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/AUGBT2432838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc04b4d4bd8cecc90dc5719ae15393279c6fea6e062883562c3a2b673acbd8459. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/AUGBT2441087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48c26f3c113affb01a5f4e96dd630f325df11e174a836556da96af523a3007c4. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/AUGBT2441088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaf49e47c7e277d3255083b9e369ba9b9c82de707cd98b7a31da714dccdfc4af. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/AUGBT2441089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fcb50e4f795eddad499656280d8f473acbd91213a557d1402738bc62addcbc6. 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/AUGBT2449128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9dab4cf32e03d7835bd5ad9d102b3c6e2478cfb317caf44ddc6c4fc805bf9d9. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/AUGBT2456335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc30cc93167ca51c9c382df3e54786433fc69c95d8b30a7e014d1644541004d4. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUGBT2456290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77aa9c1ddf371a074fed46918918651eca7947d4580050dbf082205a9c6e05fb. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUGBT2456369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062a77308b1137acb18fef2d0cc40470e296e3b8f5b636d7b7e52dab82f68847. 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/AUGBT2456373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd87aa8c08da34baf2a9450d0df8ef04c6bdf418503bda7f4b7ecafd3871b258. 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/AUGBT2456813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc585b961d9550b5b68e2ea28b05b40a3587abe2910c65837f7549747850c83. 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/AUGBT2456814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8b8dd18d3feb0ac0f4a28827f2b0c8ba152acb5f9d88ffacfa39723e895853. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/AUGBT2456820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b70e8787536c338ae363995ce8efe018579f109f707e5a8629bcc3a57f077c. 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/AUGBT2476306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1021eaa2291b698bec01b56de595b1e7cc4de54a7270bc16904195fd758d2f26. Chain 2 (Bitcoin): anchored in block 957569 (2026-07-11T12:44:25Z), 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/AUMEV2512245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ebfe6ef40726525492b1e32805470a60c28f2678b86f2c87e77408b708225d4. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/AUMEV2512261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc164237745faa996163d72efcc2888e1c43afb37d3655222b91fc797e9cf1b. Chain 2 (Bitcoin): anchored in block 957573 (2026-07-11T13:43:13Z), 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/AUMEV2512285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc4f32993e89dfd35b639b5ac2c6706fa36103dfe24433a20e932d366c7efe7. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/AUMEV2512283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x388c13afde7a3e397481819b8ca9eb7ff80961867c4421cb7107b4ce35244356. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AUMEV2521763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fe6649029f494d951c77c3e56e33eeb256e0c70c7b53f3142bd192668784c9. 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/AUMEV2530701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edd6cab9f3b21f11a39ce295bb79060b57b37c04f92df143bfd4bb84f3effe2. 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/AUMEV2530702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bb7116c7a961ebaf318b1adab4932b0085cf9e03cdd2272a91e73d3dfedde9. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/AUMEV2530707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5886cd0bc22782f7958fc498d97f0074c2b4bf12483b00d01a6f22f6e04c685. 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/AUMEV2530708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3842c24733502cbdc76a9095d5fd81f9b612204d868afd3e32b6df93e3f463bc. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/AUMEV2539462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb95ee5ecc07a03bfa8a9f2c3c08886687cb47528929044761df487c4f7934d. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/AUMEV2539463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc720b2bc42df4cc45b79a8f6a41499a407640279a46e338067e1b19c1de4dae7. Chain 2 (Bitcoin): anchored in block 958676 (2026-07-19T05:43:13Z), 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/AUMEV2539465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51722fdf897bd3ebf2941054d0850d6d83cb726b05bc4b5db059fd0814db54bf. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/AUMEV2550137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2265edff8137f76b4c4e3a586e55c2eba6e7002e9fee3e446aeee5473ad69c58. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/AUMEV2562114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3733073de44b0b5f4e086aa61ef3bccc24352c8eedbb1c531d9670be36bea413. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:22:43Z), 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/AUGBT2549157.