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 0x89d961018a0ac8481e8cac68e54b158f8fc6bfcb3c6fb4bd7e59b142597b7570. 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/441eed17-3deb-4db0-8ba8-c2adb1590430.json and https://artists.proofprofile.net/proofs/artist/441eed17-3deb-4db0-8ba8-c2adb1590430.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Watching Stock Car Racing on My Wedding Night
Propaganda Films Shot with a Sitcom Script
I Know A Girl Who Develops Crime Scene Photos
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 0x8f4147b2e100587135189fd4ca707450684f7cfeb7002610216f56f2763af199. 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/US4KC0508404.
49. You'll Never Be Where I Am, Ever in Your Life
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76da0daba542bf1625426ea4fad3cd8e71c91cc736e79599cd36b577f154a02c. Chain 2 (Bitcoin): anchored in block 957747 (2026-07-12T19:35:06Z), 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/US4KC0508406.
51. Mercury Streams, The Proliferation of Foreign Matter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc52e1516369fa404572370c60e868b1be71c131af98b5a3898c4cb44f983ff32. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:38:51Z), 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/US4KC0508408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41efb05349860e08da71aa941a1827c13aa531077a58fb4bc77dc2dc0f5bcb9. 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/US4KC0508409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea54651aac68808b9ddbdf0e98447f2a32e26026b42b8586efca34748662099. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:49:03Z), 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/US4KC0508411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29c69a0f7779a958516ce81972e955449584ad2413ab77b63550cba56d8bed68. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/US4KC0508412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7364db8c430e2f0028b6e749cda82080205e1cee3a3ab375f01a252c46edb45. 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/US4KC0508413.
57. You Make Statements Concerning Things That You Know Nothing About
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979c82db87cecf47eb61aba19f3901a5e9bc05ac2e3ad66c6f2b1d6524e3e275. 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/US4KC0508414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b8ce1a5e7b153398070f0370aa4e980aa76814096d0b4a44bae653028356d7f. 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/US4KC0508415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fceb884415a4c3ed4dddd85ff7fd84b09a710c254b17d2e7bbb8bce159a0b8. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/US4KC0508416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49cc2022e01681196fe356567a8b1b4e7a057a04da4b4a29019cb5e68015ac75. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/US4KC0508417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x006ba5c690d149455dfe882eff7cb4d64cb73781e20d890c5fc9152d841cd83e. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US4KC0508418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35e04264b638d145ab8bf2f945e4f97c6e3e90e41ad49913a441b0d38201d04. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/US4KC0508419.
I Know a Girl Who Develops Crime Scene Photos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca7248b9c24a3e22c4fedd9f91b44672d753eb4b8944a5f87841627e23aba531. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/US4KC0912603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fc08f486f91bec07aa2f6624b1ebb6718093a8fe7112e4187ca3c6ab18be62. 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/US4KC0512701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10acd720ae0df17a9c243eb4314d2e7fc8e51c75c86fc11069161e7523f2956e. 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/US4KC0512702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c114cf4e8d2221a2d336eafe63ddc9845e16c2fb3814d076bce5f53b4197fbe. 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/US4KC0512704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa34d811dc8f9aff0e2d09f68253096640e3d9f0a66c2eb89efec607127349e9f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US4KC0512707.
I Know A Girl Who Develops Crime Scene Photos (The Instrumentals)