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 0x4ed7f1f0ca82ceaf7750dea829252f6bbcb519cedacb06505ad1a8bc0a0ec7a1. 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/5c52e8b9-99b4-4118-86ea-3d4d84fabee2.json and https://artists.proofprofile.net/proofs/artist/5c52e8b9-99b4-4118-86ea-3d4d84fabee2.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 0x78852960bae1e754eefafe82513959ad2465bba9e6189e3fd8328c2d2db7382c. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T02:01:58Z), 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/QZ9Y21781193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x975bbeacae7efddc486b009bbd67d76923cd387874cadd328edcf640e49646f4. 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/QZ9Y21781194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60676994a5c44565104e898be778d5b4ebb7c6bae7f14e4e1ba81257441d1b8d. 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/QZES81824433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26564fcdb1a071b3289753c2f35ea7761140887fe16a2f701cbe74426601d892. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QZES81824434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0162082975a48b079a84b094bbb288296420c2abdce0007dfc0f8bab79cc8b8. 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/QZES81824435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde382a4c05bb2c3a5ccb4359f0ee7c977a8da69b69f7f3b17cafebe73f1e0f82. 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/QZES81824436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd428e14984622dd1ed41a314cef0912f443cb2d6061a6afe778a40497f8d34bf. 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/QZES81824437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10018da04e7b2f14099055727223de16188c5e900d43bcd06df8f37adb4518b3. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZES81824439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a63b5752a4858445eda11740cddd46fd408a5eebe463ac28472eb58a299fabc. 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/QZES81824441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364b3e80912f91f59d9561a7615ae211653e625ec3520d842415e1c8cfa2b43a. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/QZES81824442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3339f49dc91eb8a88d318ed44a5f41c4240a3067e77cfe9e75c79bf165e4d47. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QZES81824444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf098d9504bea0280b88fa9958693488768f42460f564ee6b3ea19558215ae35. 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/US3DF1957369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56a3ff737e1663928fba5eb868739f69fbf0f7146d1d286159ca652d4a2c517. Chain 2 (Bitcoin): anchored in block 958681 (2026-07-19T06:14:54Z), 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/US3DF1988313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c9fa77244cf4f15696c64d2638c4d19d4b7be1c39e3bb46cc4d98b8ed90f16d. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZKDK2087173.
Does Anything in Life Give You Pleasure Lately?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a1a5bdcc212604dd1c63ab880be38d5aad23876d45c6688549632b2135b4119. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/US3DF2160602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0e97b44716773d6510f37d0ac2240a1f56f15b5ab72c22bd0e667fdbd28154. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:06:04Z), 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/QZFYZ2280949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b7914faa971ed121cbfd1b08f2963b14129c90579356a2ec3cb7211721cc2d1. 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/QM3DF2245612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf76da4c11d94ff61d2e3279fed03235f354f9ffd889bc395faa9a6cd0f7782c0. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/QZTAU2364094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d268792f3bc9830c04090ed094b42e25c74278992ffbf3f0227ea8928eb83ea. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/QZHNA2442390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8557f3eaca537917cf535f6e51922aac16cf625287fb69f0c1526f5ea4cfe479. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:36:45Z), 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/QZHNA2456685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x356294730a3f8a017352916c79c6b0bf07efb1eacdb54d9121bd50c760c778a5. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHNA2456709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda26cf5312747aff797f5d823ce67c20cfbf9e8bd5234b682fd330d6b7b9b0a. 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/QZHNA2458950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x896f65510fb52abe31ff6e85d56a9e44923463854d3a9845cd158646614efeb9. 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/QZHNA2458951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf86381f819520ddd3914aebf92ae357923cf90e2b05bbfacd620b43b17b268a9. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/QZHNA2458952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x256dfad8ee04c101d7c42102790d34ccdd9e9e397410716a7ea1e312f0a82079. Chain 2 (Bitcoin): anchored in block 958495 (2026-07-18T04:39:02Z), 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/QZHNA2458953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec9fdd2632cbd5c4d67dadbed65fcf18ef8c1f03ee9bbfff104bd61e686b31d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:58:47Z), 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/QZHNA2458954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abf8e7eb71480f961f7c3b1c8a38232bcccdb5b5f2491f9295215f0b8e9f601. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:09:12Z), 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/QZHNA2458955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1e16a57004017bccab41166214412fc3ab302cc9c04c7f124895b5e4b66a06. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZHNA2458945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc434c8aeee9174a23fead5cc458b2a520d0c956db97bd32f3e70dda031bc14ce. 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/US3DF2503792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b5eaa669c2dce11f961e227eb97e2a1dcdee1c244fef4770e4eae22c917cfa. 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/US3DF2503797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbff18dd98e749096f9053ab5fec520900e9b12d91ff7d59b9471dca9cbc4925c. 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/US3DF2503793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe72ea6a35580f251f3c1b9c7273973157f058f10cb35a00af3124853bd4034a1. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/US3DF2503799.