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 0xb85c1b6b3634c19b8d83089c841f7f8151ebd311a31a2d5a91bd13adbe22ca5f. 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/22e067e3-629b-4bea-a907-ce68e4eb5343.json and https://artists.proofprofile.net/proofs/artist/22e067e3-629b-4bea-a907-ce68e4eb5343.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 0xb24e7c7c6bfdd0eec2cdcb8e79460350b428aa023ae32104ecc7cfd79b27a164. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SEBGA1700302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1658bc1903e2ac6a4be458570cc88aee23ebceb1212ab4a7e67eaaf7a83e1cf7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/SEBGA1700252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a81eb7efd2b0c1f60cb51b74926fe509f9848f8549ae3582f67abe972c8e445. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/SEBGA1700256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1658bc1903e2ac6a4be458570cc88aee23ebceb1212ab4a7e67eaaf7a83e1cf7. 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/SEBGA1700252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386c2538066a867489fe82d5a90145bcea3102eca8a2f943198b7ad56681d6c2. 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/SEBGA1700273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bd63a90ada76c41b21535a8bc0e416b79cc24862b4b158ff2793e23a6061bc. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:24:20Z), 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/SEBGA1700375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b49c4cb6e42f3055a94cb72881fd1b3b466bec3848fa6b547fa6ea95e88247e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:07:12Z), 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/SEBGA1700337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1152ee95178f039d98a70e93b4528fd4456867d3d66e344b855f9abd64bae7. 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/SEBGA1700253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485e483a55cbdfd3bd6b4bcb1dd9b91f07a0b1af31177ef2442c9fc39863ef02. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/SEBGA1700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b602e3b255aad142470d1b111c7abdbd69b1a9fa531096ead244ce651be7cba. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:08:14Z), 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/SEBGA1700303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e9209f97181508a8845d34a69cf2848e53aec7189fcd60f2fe4081151233c0. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/SEBGA1700374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e92df58bd29b670f5f71764e5d24a618b9ac6d90166e7062980f1f04053f742. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SEBGA1700318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44f0b8a3d6448c90740f94a67fbe15ecf65075c8670ea937bab32213e7808f58. 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/SEBGA1700263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47e6a0474288ccdeed979925849127be159b654cb55fb685fee464e966877b7. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/SEBGA1700343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cd0ac838edfff84425e0cab88bdcfa9e66bfc85bc00db1de01c6f3e2ca3780a. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/SEBGA1700292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c69bc12b314d9bc1c86f2f51c9bf2c0c718b89f95c8d6d0f2675e96aece5ddf. 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/SEBGA1700338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd97bebdf26cddc52ae7f012ef547de0edb68a8d629fe851ccc08c2eb97ca63. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SEBGA1700346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd94763635a98294f83d4d6be38ed45de899dffe860a1719a489df5a4bad4e. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:04:09Z), 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/SEBGA1700351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ad3c4daf34f2bd691c8363c5e998a53305878c14732e57b12c91e5330bac9d1. 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/SEBGA1700356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf641cc21909044f52d19572372ef1d1590c9e7d94b45e2772351615c224e9c. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T10:56:26Z), 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/SEBGA1700357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0846368edf508f3940cde4e2bac781ee91c3306ae090b2bb509823fb7a71cd0d. 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/SEBGA1700360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce275dd08dd4475a31e5ada6878f752aefe4be9ae2f8ac5b140d96e163710fb0. 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/SEBGA1700362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2b75d530c84ef0837cac669600a5a3aec729c95f9a86e52b3a228926fffee2. 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/SEBGA1700363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21b75b676445e760df5b9210f05933cdc4824d67f71a7c022e34d4dac63aa765. 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/SEBGA1700364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9273f9beeb8ca7b5b58e39cce17c46b53a480f0dd8e62013e2ff06d3c3cd2e76. 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/SEBGA1700365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d401157253995b2e530283adf93f87594796a01ce8143d8ceed382bbd0f423. 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/SEBGA1700366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c57fd087e90847d863f3bfe2c213958b5ad990cfa03ec72bc869077324e301c. 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/SEBGA1700367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc086e3f101734ad4000f9eca9431546a125074c58c038a2a49c81133d042d0e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:07:22Z), 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/SEBGA1700370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec38c541c7ac3e2a4300a0b12aec4ae38165cc6055eb3f1f8e30f75d51e48b1. 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/SEBGA1700371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e01cb893e28028f9e91805b699cfd015c62be2455ac8cdf72334288dc26a84a. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:21:58Z), 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/SEBGA1700372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3581cae79eee17085a8ba22427e2069338d4e4b853839965afaacd3ec9d38505. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/SEBGA1700373.