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 0x8d99389701842ce67fb2fb86c03ec20658a23acd6ed7e626ae98754a5b99ca87. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/08b87a6d-60c9-4abd-96c2-815205c6be44.json and https://artists.proofprofile.net/proofs/artist/08b87a6d-60c9-4abd-96c2-815205c6be44.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 0x7b2dbc16ccc39eb9b8eb0f8a5070b35e1b9a05a323b0cca84ce60fe25d694e64. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDHM1918660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dd027213e7943890efe5330214e8c8fd560f960a6930a4aa73edc7c6b8242b. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USDHM1918661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dc3181cfeda91aff357f2e08e6b69a3185aed9cf37330812f2c280b50adc43d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USDHM1918665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1b022965e5fa541533b1ac8fffad68915a6e1f4667051e712c455c5bac990a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USDHM1918666.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1affeba02fc2750a938801460ce5bcfdc39c8ab1f59da2468d5ad572a05197cd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USDHM1918667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x785eccb8918e578aa03f350e058bf0a62a65d2ebcbc9000c23bd886e1d1f7238. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USDHM1918668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf8dead4e9d49f43b804cf7d47bf26b065fa6782e9e772d2753f45c2ae3dbf7e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USDHM1918669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88ec31c08acea6f361ee02594bacef1bd431396226215cb6005df24ecec9574. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/USDHM1918670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7166d6cb29f663405319e13ffffbd0d34a33074a58f73a12d4a2ecfe6ee0fb8c. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USDHM1918726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26e69468a476ccb5c71a9d756d9298bb7ade66be83cf6ef6459a03fe04b966d1. 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/USDHM1918728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c8ab9c2564ad30407f7142c5fc4d09a67be6dd6720ac65a0a50af4ab1b282b. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/USDHM1918676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1174badd7b67f247c9fbd97378adeb14ad216107e8f37a3d9f19c80be545c94e. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDHM1918677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5648f3f62e6a19a51319948b8cb8130cf45b4609527c30e0d3c3911ccfe8d975. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-07T15:12:44Z), 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/USDHM1918615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4babf8600964a59ef88906be5da5b31efb781ad500f197308e6498853fb4c0b8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USDHM1918616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa156a50e4e6d0c3498c797092c85ba3702da5e31ffd84be5e3a8fe76460d9067. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDHM1918617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e96cb2eb77ac1da7a6c29574f31991320cfd90ecd38cba8abdcc2a7f3c017a6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDHM1918613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30dd3440253ed02d4f17e8faeecbdb9237fc107b3940ad563827bb136a88b58f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPI82306457.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28ef8ff155289928e511067438124557e2a0030a52ea03c927ffc9a70b3400c0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI82320512.
Laniakea - Part 1. The Great Attractor; Part 2. The Zone of Avoidance; Part 3. Dark Energy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbaea018569eb9d70e3cf385086cf7ffd2724e5608900298894c672ed94b0c0a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI82320556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0f10d95517352416d32ad748caf05561b3bb356b274fb6af15f0a50ddfff6a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEPI82320557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398b5cba7fa30772f5902fc3cd547189c27b632054854f798919c7fa403fd582. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI82320558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a14947e02b119fae3c22b6fffe23a7895d2e9996e1cba75c0149bf98434d058. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEPI82320559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7108cf8323c13e6fd006f7fa6b6b8780c6a672b61112c6febac5cab60c20b38. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USDHM2114945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2ae96588b26d4f04d47a1a9f2d5215fca6fb90ac4a686fc39b378381a38e32. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USDHM2114946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e4b1a27da7134b6259ffc87ed651c777dbc6fa0ee5b281f55bca5150f36a1ac. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDHM2114948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f4bc61733783f94c8d3dcd592828c72b2dc35713f48170ef26c8cb320d5247. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI82307212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0142abac3526c07f214469d2cd4ce51a6176717fd928ee7a57240f72c18f64d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPI82307213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d69ffa8fd8903c48c0517078c29aa8ec2e3b7d644e078287faa7714d0ff10c. Chain 2 (Bitcoin): anchored in block 957249 (2026-07-09T02:31:37Z), 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/DEPI82307214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea3f9e7eb5d477564d2b8c1da946bd9b42cb788352089980fde6860d43397cf0. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI82306697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f44dcd0bf1592c38250197a62564870a61f36dde5c457037b5d4869600deefe. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/DEPI82306699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a27a5a7bd61ee01353018947e1211c0e10d77dedbad30133c3e052326e8f75. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEPI82306703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936f8e0011a222bb1dea77d8a2263f59b43b343dacf4bb665e4b881140acdcbd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEPI82450238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454cbfe278e30d24fff8e56a14144701707fa0aefbd38ae8f9ba0f6b98d05f8f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DEPI82450239.