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 0xb7310433c08879784c200f741550e7063d3e42baf59a8ac1dd0c33009063fb35. 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/7b916b88-dbce-4c59-868a-7d5f33baeba8.json and https://artists.proofprofile.net/proofs/artist/7b916b88-dbce-4c59-868a-7d5f33baeba8.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 0x899c83c1f3b00f1ee50a180bd6979ecbc76bc543d1189678a1530f9b31e4a833. 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/BRPLI0300204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x837c8b0bf603ef197edd00fb0672eed7335e8c7a199c5be8a1e83ae052660223. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BRPLI0300207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3040f3f9e6f4471196b1c80bdeac01dca4ec906a88219a336fdebd09a4913698. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/BRPLI0300222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde07f15e76080ef4eef3ff1ff451132e62387b672b4cf626779ff656d655cdc. 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/BRSKY0501784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e14a0ee628e23ee6986969d85bb62d6f89e19f303a8150b2301754d4bb3d4c5. 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/BRSKY0501785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3e9d42308e3306747a50746a0bd28e394607746774aaa1d0d96a25a2bff307. 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/BRSKY0501787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7368401bba6d70009be43cdffb753b5206293adf90215a2562e16e64e719cc91. 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/BRSKY0600377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf803d67f504a2f8e7860fe82d3835170e7c5cc17ea9cce45209a542bbaa02712. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:37:50Z), 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/BRSKY0600396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594922d2eacd4d8ff3c4dc7a31e63acfdd1b26a37909942d54d6676216076eda. 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/BRSKY0600397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d2ede204c08515633cdcceb60e737e6f36afe96415b7b7ceeaea8e8ea995bf. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BRSKY0600402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34a28699985563a49e16ff8a5e23b8faa5fb41057a92de7b3170ed3121361879. 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/BRSKY0600394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe103c18af606404ee378cd010befc4eb0a418e756c758ded11491e1f14301b3c. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BRSKY0600419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac3515fa5d8235fc1c0527023b6ec6b2bc965b6807ac87ff46772e0eaabcbf4. 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/BRPLI0300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68a488eb15e6de504b89ea908f8c3bf366227b2506887002c1d144989772ebb3. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRPLI0500037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b388e904bd36a957b2259f411e1a3bed53928ab659163963f72c6ce3c014d4a. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/BRPLI0300159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a90ff689a5954cf394da596a91ef7058f7ec29d62fde28a4ab0c94d600f78a. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BRPLI0400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc741fd4c73612f677af6a8b350c69368b5c304f5f626798397be3457f6abbd4e. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:18:45Z), 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/BRPLI0400035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e3ca228e1a66a7f2c2449cd26574d796cf34f8b668a02aec0dde278ec1c428. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/BRPLI0500059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dedea72f9ebc1adcd892798d952f9c1409f86df5b41a3d8154e25c241ff0a1f. 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/BRPLI0600036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefbc26e1a45c9515c012646e15fc5cb70f25e73eab5d5e0d5c066d73c93d22c0. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRPLI0700228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x133d94f09cda780825f34b95bd12470548826bcecef6c83db707d5ed9152ec5b. 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/BRPLP1300312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329100cbf1fa285e066506bf4a5ffb82739e5a37f8a52f8c586d70099e0b9ae6. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/BRPLP1400046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95aca850a303ac80ed59aaf590697f9a69a1585cf2f2dc7e925bbdc01d833370. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:51:52Z), 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/BRPLP2300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x610f776273ee7fcd407b34a8ad6e1209ba281f215f1495ac60fd29ffe9bb12ec. 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/BRPLP2300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad46bf76e99ae3d3a57e1d639707453bb5f4fcfc14586cb63c9b1e156ac9337e. 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/BRPLP1500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85062f9151e087142d8b471aa2f49ad475c084cbe0695aa3b84aa9018cdccca2. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/BRPLP1500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65042ae2072790b2c74d6b27fe4a5f044a8c93921612463d9b33e3bc3da3eed. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRPLP1500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa503da88f165f362b164dc3f4a31b4631dbba1b369576faa18d05eb2cb543855. 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/BRPLP1500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad73f5fafc6896bd86f8938d8e8f96ffd0f530645d411517665d0cfa70b0c17. 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/BRPLP1500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9926a640393cc2e435fd880fc0451cf9e5c8f089718336074a3a4682814981bb. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/BRPLI0600062.