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 0xd2296c6a012dec3a32c260e03aae264762fb5b5742ccf91c6b60b92aa0d2aea4. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5f12d01-1412-47c9-8558-18be4ba71cee.json and https://artists.proofprofile.net/proofs/artist/b5f12d01-1412-47c9-8558-18be4ba71cee.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 0x1c59c171568a565aad0864c9f60445536589af6469c0655087215160c3ab16c0. 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/GBLFP2458668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dfc25c05329b618ae09a0177fcb12b53ae570f4c88c4a555d52460d77f6035a. Chain 2 (Bitcoin): anchored in block 958498 (2026-07-18T04:54:58Z), 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/GBLFP2458669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a6975cc92c1df4fed9f5ae39f107d6e7a943356c6046b1c385494ed1d45254. 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/GBLFP2458667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48957835772bf79316148a2b8fada563ff740a21863180398fcdd89565b053cb. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/GBLFP2458670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x713865e290acebe716e5bbb7e2f13abd8c7a17dd4ba9178446f6197d7e9c826e. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/GBLFP2458671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6470c02687bff13858404263351d8f518918cf64d5b624ff196bbdf93d693e98. 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/GBLFP2467351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ca28b6b5a8577341b0ecc930c9c28751595aa9fbc44c3e21425cd26a54bc80. 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/GBLFP2467349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcda6deea6e7d0601de1bf55f128afc25b8c955839ace288a786a138d83ed81. 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/GBLFP2467350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x434c11f8956c290abf844483fcafddb5d4c900955ca846a55c2fba6f9d5b659a. 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/GXBAV2397469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53ef5e6ae3114e4dc2b13adf74a1d31db91a561eba0aa484b0473990c7f6524. 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/GBLFP2467352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fcde184b3606fd1a2ce8f4d7c59b332410260cebcaeaa5602e376cf0ca8338. 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/GBLFP2467348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecc4e01fdbd726b213bf98c69e485df3965450abf835d966abd96e249768d86d. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/GBLFP2467353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017caa4f4309fb78c29ca4b47a9d7f4e16b02464ac0698880588cf55acc54d44. Chain 2 (Bitcoin): anchored in block 956742 (2026-07-05T05:07:15Z), 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/GBLFP2477415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0628b452855a3489fb5e47e6847b151b23567c0fa83e05528e6c446b4b02d64. 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/GBLFP2477418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x891804e5cd385f04905f8fa92fcfeb3b5dbbdce90c940da5b55d771076bb9b5e. 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/GBLFP2477416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x920ded3bf24bfa7b5708e60d85dbb32d30fcc7d4ba2ddfe22272de5331dc5156. 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/GBLFP2477417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88c256942de858f4347839b5154800666cdb49da13c1baabd31e44a7b8f8682f. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/GBLFP2477414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba77a2b4c9546fb8c02abdc4f14d627bce45c4641c607f44e0e9bf18297cbc4. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/DENL82017344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8725e5c75018e7d30670d9114c528b61c628eacd01261e68ededf471a11a0db. 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/GBLFP2477419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983e2eb1c511d0ca7657346b93e30d86f9e7e555ef4787bfbb1b820e04dd0b1e. 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/GBLFP2481913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d44088b01471758dc195faa8c9881ed4589e3cb19c4d7084591cc45961e4b2. 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/GBLFP2481916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c19652323545e1bb3186e9314af78ab3cb16e477fe2a37de833c8e8f7f68690. 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/GBLFP2481915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037877e27a5939c729262437c8e0196d293350ca4ba6dccca0e5819f0100430a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/GBLFP2481912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95771e2dfd7c2dc39a89c5d346b63ccc3881b160823214c62af31eac587ad344. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/GBLFP2481914.