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 0x3c195c378ac6a03603bac7c804706790b97beb8b7213ca2c26954528454482ac. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/921e0c55-e343-4b52-acc8-ada506c82af7.json and https://artists.proofprofile.net/proofs/artist/921e0c55-e343-4b52-acc8-ada506c82af7.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 0x3a120c5f3b6401aef4ca3e384d87cd5d73e3c24ccade8cd176c8c872fc4fa5e3. 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/AUGBT2436373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe290b66e54f489b8e60f253e6eb7836dc969880de311350de75cf9d03b6709bd. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/AUGBT2436376.
Sailing Through the Deep, Silent Ocean of the Night
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8b35be582b1f8731a94112567f2762e1045ee79dfc658047e5c0c7b073e5bc0. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/AUGBT2436378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c761bf79c3bd1009329a8665e793ebd049f9b0d40fcd094702aada101b2aa72. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/AUGBT2436381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a500810a026a337475148c7deb9730cd6acf9346f0c4112beb75afea14a5b6c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/AUGBT2436384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa0c2debd0dcb7eaa61ba7e3efde77aa3d6af6f619d7b77e3e799dd45d3114b. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T02:46:01Z), 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/AUGBT2462537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a9d3c80c12e1465b5b27e3738f4ec11fb0fa2925500aea4b77730e23ae1013. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/AUGBT2462539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x703f9cfcfa6bc92b9e652d05bcc76228d92e370bb992dd5eee0636e461bb3c31. 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/AUGBT2462542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad9aa8d57fbd8de36de709a7f35e200d7186275cbd1d9329d0e19916ae2b04e. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-03T01:37:49Z), 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/AUGBT2462543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890fa0fe2bf3c8bb819d344492b765ab238fdeb8400b7c80eaa464b1ea4a869e. 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/AUGBT2462548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9618c31a8fc07b18b0f7451fe166eeb2e349a6513e226ced0650d4ae3d921fca. Chain 2 (Bitcoin): anchored in block 956426 (2026-07-17T08:55:11Z), 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/AUGBT2462551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd17928703974a77d611ad4b22c7e13c9616437ecd04857c25ad9bc3652665915. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/AUGBT2462552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958877d6d6036c868ece2bae96e820435bbf7df50e7bc139ed1d06d8042cb590. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:53:54Z), 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/AUGBT2462553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bdfc4d0ae11884c6f98921bf288953dc48e1d3204e78024135136deed9e175c. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/AUGBT2462558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29e4e32c35af76728ac25a08c1dfe9a31bc08adcb6bd6e08d28983bb14c640ef. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:30:42Z), 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/AUGBT2462559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8019014fee22e15cbd98c0550d63ffb365b0fd38ef8d5521a63d1f33f6b0e31b. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/AUGBT2462560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d075b24812ace8824cf1c075d21c4a34479010189fe1e54d348bae523f8ebc. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/AUGBT2463072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9822b39bc4359da4e40147ae407d53d9806390972b78e64b3b86cf1ce94ba4. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:47:05Z), 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/AUGBT2463073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a358c7523c32fb524a153867b3e3e2689d4a8c73189fa3942ab6bf3a4beeab4. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:28:09Z), 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/AUGBT2478665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe432aaecf12dc75d3b79d58b345e3f37133ccec01202d3a37a791519604e8bdf. 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/AUGBT2478666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20b0c663d2e3039390620fa858f7012935aae956ce198dc6cd9ff90fd33413e. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T10:50:26Z), 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/AUGBT2478672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99a574ed674b27c99dbfeb3d0958d927cc628badc2bc282b2801c4a33481a307. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUGBT2478673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7276290941f36ad1fc1ad52c68c1e5f18e23182f123d8803f8cee0effae1c8. 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/AUGBT2478684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c82e8a8765831d745315a2b9a3060465f7de5da0ed8bbe1b3bba14d42c4576f. Chain 2 (Bitcoin): anchored in block 956404 (2026-07-17T04:06:20Z), 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/AUGBT2478686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a5dde979b4dff6e0188765d7e9ea9214a93fff9e12946d100e4167cd1d2bb6. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/AUGBT2478687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7e3e88930cdfa5bbd036e6b0e018fcc1618969990a8d40862134ad40fdb8e8. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/AUGBT2478689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29222e8834a474e819eca1ac17a536840fcbf0f306049234f0bf36424c79be12. 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/AUGBT2478691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07fa0548b6ac9da423940e4518b3470ad2b5f735e360632f8eda8f8300585e0e. 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/AUGBT2478697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68030136a92d172d728cd530964f884021998ed1c8131518e624363699293e3a. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:02:09Z), 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/AUGBT2478700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd351d4d8dad256cd3a020ef3b8457b6e529bb4ce476bef569ab4311c5e38f93f. 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/AUGBT2478703.