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 0x76878673ab3a76d8c1c0498473c76f4a9d8c66cb5753e6d4c6d12af2ffc667ac. 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/81710c3e-b1f1-49fe-bd17-4574727c13b3.json and https://artists.proofprofile.net/proofs/artist/81710c3e-b1f1-49fe-bd17-4574727c13b3.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 0xe0225cbdd44c7c8ca06d4463083aef5f22d662185094a1cfc8104b10f1a36aca. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:22:44Z), 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/QZFZ42535904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0edfa4100cb6d324f937cce5f1b6816b32303a2c90c1fbd09a941e9b1be9b1e5. 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/QZES92552668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80dc094cabd6f37678d7fb4ae1ba8012929accd5d6b4f5d30f5b088f93a47e1. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QZES92552649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375995c6c37fa00789aa0211752ca8591b5ee4ddd45f39bbae0ca911a15bbf5f. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T05:03:27Z), 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/QZES92552643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9d70c32fa037a754c1cd4a276ee66a08bbd82f6c0a67a8b1c985f664a8dc1fb. 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/QZES92552670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64fded26c73b2f7b541682a0768c873280cf387d7f3a04d1239d82236b188915. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/QZES82588089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7704f388118b0425a502f0841cc300a26f54aa155ebf23d184667601067a410. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:42:25Z), 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/QZES82596136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b8d53bcd066372875a3f529c88d4b681328928e8d54e95c0ffedb99556ea2a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:01:23Z), 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/QZES82584380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23f57f104416f8eb15c8aaa5357576505613850fb6baedd6131e1eb6d0734ca5. 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/QZES82596124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08cd64fdc71e9cceef45155874053b207211bd0ae2bce01bab134c09170777ba. 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/QZES82596126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849299faaccc6d9724f03174d38bf421727c15b832959b6598d247181e751ef9. 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/QZHNB2573635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3680a769053127e82e21f0f53fd822f31fd5f7c50624b335e1e3830e1dff213. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZHNB2572009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b87308e20c5915bb2b2efa69ee8347dd2c33701a72a118ccc55e723367bff3. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZHNC2534230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62d2a6f351ca0a14411bfb416fd7e12d4a03cb72c487e9e9e451f0c0a460462f. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZES82596128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98d951191d26353b9c0b66b2667a401e8ac79cd597e22a74e2f8d9bac1fe3cdc. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZES82593652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e1a344c32558dc534fa434d62999e48b112a7b6655a21fd0ba0fe87147f2bf. 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/AEA3A2593075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b9f9b40854e5942fbf1fdc81b1844bbaa195fa238a097152d9cb469ed3add0f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNWZ2563419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231be245e3b78b342da9b2d863abffacf3d75a148ed400480b2b6a1f18d05ab4. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QZNWT2582929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2e19b8397f313d667463d878a1a50654321e5cf86493528d6efe7061c9ed06. 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/QZRP42593502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc38f7040b9654d73d06d07527cc16c6bcbe872869ae0e7440867be8aec1f77e0. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZRP42593503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16d16fc3ebacca51fb91fa1a17417d1166b23dec8f25f04cd2d0f71131d4aad. 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/QZRP42593504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5560b969990f3ffdee6d82372b1d9a22e78910e4874ff5fb665ba38c517be20f. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZRP42593505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81bad88af2a672ab57a27799284936e6b8ad97cfa52cea9edc37b02f327054b. 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/QZRP42593506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00e3c78c09333f556a68a801b07f6ef360906786702469a217a3addea3aede37. 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/QZRP42593507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59675c1a8f6f9ef1e692b8e540985721473e81b0d2458bedba33cd60bc099a31. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/QZPLS2593120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed30d2dbc033e36647a7bb5f0505206390950e8b86df8a19276fa5fd4b250d98. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:47:26Z), 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/QZPLS2593123.
The Rains Of Castamere – Game Of Thrones
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82063714a74b2e896985a8381d2c92886cb1d7e6496211f83bc0bf4126db46fe. 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/QZZ782572140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aaa6290d5db2e84f969f1c765acb3d0dbba55f1cb3193a2c1ce719342ebc764. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:17:23Z), 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/QT3EX2568695.