1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x7aec52801abd417b52d7be4c234c4d2903df0713510d7b88b4b918f22f04b5e2. 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/0022dd0f-0688-43fe-b141-beafb7bd3954.json and https://artists.proofprofile.net/proofs/artist/0022dd0f-0688-43fe-b141-beafb7bd3954.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 → block OTSBitcoinBlock must exist at that height 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 0xa4253efde646784b764637e35139af9aa19eb97b12e4de3acef3d2a18c83fc22. 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/DEDE20600033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ce88132fd9b741b5536ef280b3d5ed48a32150ce531ea213070161984b0b4f. 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/FR57T0812403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cd6fb03e96d5e185cc046c6eeee4a4c58f74ff091770af8767b7231963c8e9d. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/FR57T0812406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73237f3ac46ecdf1795a79339e07238f1ce77074bc30da3afccad0dfdabe99ff. 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/FR57T0812407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82207f5ac1e6d6c1f47039e1440700abf6e8d7e028fe18742e777f2f2af536ad. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T02:12:03Z), 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/FR57T0812408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc41db296e9bc6b82b92e18759de88a2be627641494316bfa9fb5faa17121d24d. 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/FR57T0812409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaee691a9bcf1b462807204c049dcbbadcb3e76a768ec058c932af96c49af5ce. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FR57T0812410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f46c41579faed4c90a9e7e64826018809667c76956d73aa10d5e6213ea290fe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W12361110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73cd15036f979d37fd08eb2bc7edceece752a14dc13886e6e19e3e10de71f2e. 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/FR9W12361111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0b5bd3d84be260806d8e58f4d18869e037366d6e07b261d98de226d396eb8f. 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/FR9W12361114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9f79ab4eacf684216f0609b26f97839536dc3bbb29129150e1ff5a58316b04. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:41:01Z), 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/FR9W12361117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67eb7f96a910df2fdb7d9e0fdd5ffd510ee8d7b39b9520a4b224ba48492acc88. 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/USWB12402538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46656573cc15dd4a57caa2272da3b0bd470378068ec8c32b8596f92eb1ddf051. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/USWB12402548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e7bc7652ca798eba6c7ac62739577cb625337c392924daca6cbadc1ffddb2a. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USWB12402551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa942d8c0af7dca56ade9f94b3b09568f1b46a3d247c939c618446c62e39cedc9. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FR6V80134773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c4b1b01c4fabcf8bb7f21a630f9b831b03ca67257b5d4aa60e67fba8a51e07. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR9W12466305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52576ee698911acbef3b3380a44a94a50ecbe0b87767937b89db5e47baf15635. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:00:14Z), 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/FR9W12516496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54539d117953ff0088371581988d1274f33d4a49a459c72beac7465fba79e8d4. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:23:03Z), 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/FR9W12516497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4488ae17b3b97675e7f95b0850eb334fa50e2ff58a43637bb6957286e5198c. 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/FR9W12516498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4ca97f2dc151fdb61b4b95c50f3495ef510732a0c34e3760988070a7aa6980. 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/FR9W12516499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe16168d067dcabefbaaca1f76de5e3aab683e838354f7657c63cdbce463e1d17. 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/FR9W12516500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442e4949a8716dc4754a624607f3d7eb69798129a8e97cdb4ef1906e17db3333. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:43:05Z), 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/FR9W12516501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca074a2eff9892e5c16df5a262c9f70ec0906c64472c5ee6a7d00af7490cbfc. 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/FR9W12516502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0794e4930859a2cd99b9d58a73475a1654c7d38d18759d238c8046cdafa433. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:23:31Z), 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/FR9W12516503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8beaa170f44596e03d4ec72b4e48112faf3898cbe0be50c32c223a7bd67d5b7. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FR9W12516506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94315877172f505b6b3a32db874dee01bb8a3e07ae0325b901ced50db76e8f1f. 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/FR9W12516508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914251ef0dddb67d0e3271a153de6eb7ae0f2bd8d41da8d11bd24a4208d6c1ba. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:51:44Z), 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/FR9W12516509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8765546c95017a4083c30121bb1fbe2308b476341ab5c662ee4191bbeb1091c6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/FR9W12516512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac7b3468fa9437b85aab44975e816a45a6a31658f043eb5b9666db835f01a95a. 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/FR9W12520605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d686be7cba778924b2c61e60fda1f29181da9fe1b879b338067a7ed91cdde9. 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/FR9W12520606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc72dbcadf38ef683053ad39542b3beb962ad17063fb6b1152b854c597756905. 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/FR9W12520607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4413091f5b4cd2d284815c244d7c10ac23702d263d8dfead9de765f55e999c4. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/FR9W12520608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8617cfd01f1fed1e181a1532de8fbc81265344babae54f062d781546a99963. 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/FR9W12520609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c38d87ca6ecd63b9e51fa089d0c54ba94196138f3806a51b8825945bdb3212. 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/FR9W12520611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29389c178ef97d0aeed120da58442626ded3147c474cd6beb081442996fcd9e5. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:52:54Z), 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/FR9W12545745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f5d4f17953e9751f739d1b6be0115c950b28d3a42381407a40d7e72406c896e. 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/FR9W12549624.